Classification of Wagner 2023

Bellerophon fraternus Billings 1866
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Bellerophon miser Billings 1865
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Bellerophon solitarius Billings 1866
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Eotomaria laphami Whitfield 1878
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Bucaniopsis forbesi Reed 1921
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Unr. Metazoa Haeckel 1874
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Fm. †Nectocarididae Conway Morris 1976
Invalid names: Muricassis [nomen vanum], Sentularia Unknown 1758 [nomen vanum]
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Palaeacmea solarium Angelin and Lindström 1880
G. Acropora Oken 1815
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Acropora fastigata Nememzo 1967
G. †Micrina Laurie 1986
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Micrina ridicula Barskova 1988
Ph. Mollusca Linnaeus 1758 [mollusk]
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Fm. †Maikhanellidae Missarzhevsky 1989
Cl. †Tergomya Horný 1965
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Or. †Archinacellida Knight and Yochelson 1958
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Superfm. †Archinacelloidea Knight 1956
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Fm. †Damilinidae Horný 1961
Fm. †Metoptomatidae Wenz 1938
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G. †Calloconus Perner 1903
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Calloconus avus Perner 1903
Calloconus concentrica Tolmachoff 1930
Calloconus coronata Perner 1903
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Invalid names: Calloconus humilis Perner 1903 [replaced]
Calloconus devonica Tolmachoff 1930
Calloconus gibbosa Perner 1903
Calloconus pompeckji Perner 1903
Calloconus recta Tolmachoff 1930
G. †Solandangella Horný 1995
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Solandangella vizcainoi Horný 1995
Or. †Kiringellida Rozov 1975
Superfm. †Scenelloidea Miller 1889
Or. Tryblidiida Lemche 1957
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Subor. †Hypseloconina Geyer 1994
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Fm. †Protoconchoididae Geyer 1994
Superfm. †Kiringelloidea Starobogatov 1970
Superfm. †Tryblidioidea von Zittel 1899
G. †Archaeopraga Horný 1963
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G. †Bipulvina Yochelson 1958
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Bipulvina croftsae Yochelson 1958
Bipulvina liaoningensis Yü and Yochelson 1999
G. †Drahomira Perner 1907
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Drahomira glaseri Perner 1903
Drahomira kriziana Horný 2005
G. †Ellsworthoconus Webers et al. 1992
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Ellsworthoconus andersoni Webers et al. 1992
Ellsworthoconus barabuensis Whitfield 1878
Ellsworthoconus bridgei Kobayashi 1933
G. †Helcionopsis Ulrich and Scofield 1897
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Helcionopsis depressum Ulrich and Scofield 1897
Helcionopsis radiatum Lindström 1884
Helcionopsis striata Ulrich and Scofield 1897
Helcionopsis subcarinata Ulrich and Scofield 1897
Helcionopsis wisconsinensis Ulrich and Scofield 1897
G. †Kalbyella Berg-Madsen and Peel 1978
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Kalbyella poulseni Berg-Madsen and Peel 1978
G. †Micropileus Wilson 1951
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Micropileus obesus Wilson 1951
Micropileus ottawanus Wilson 1951
Micropileus variabilis Wahlman 1992
G. †Pilina Koken and Perner 1925
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Pilina acuminatum Koken and Perner 1925
Pilina esthonum Koken 1897
Pilina ovoideum Koken and Perner 1925
Pilina solarium Lindström 1884
Pilina unguis Angelin and Lindström 1880
G. †Tryblidium Angelin and Lindström 1880
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Tryblidium arctica Poulsen 1974
Tryblidium erato Billings 1865
Tryblidium eubule Billings 1865
Tryblidium exserta Sardeson 1892
Tryblidium hyrie Billings 1865
Tryblidium modestum Ulrich and Scofield 1897
Tryblidium niobe Billings 1865
Tryblidium nycteis Billings 1865
Tryblidium ovale Whitfield 1886
Tryblidium ovatum Whitfield 1886
Tryblidium reticulatum Angelin and Lindström 1880
Tryblidium rugosum Bradley 1930
Tryblidium simplex Whitfield 1886
G. †Vallatotheca Foerste 1914
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Vallatotheca anticostiensis Twenhofel 1928
Vallatotheca elegantula Chapman 1916
Vallatotheca manitoulini Foerste 1914
Vallatotheca unguiformis Ulrich and Scofield 1897
Or. †Cyrtonellida Horný 1963
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G. †Aremellia Webers et al. 1992
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Aremellia batteni Webers et al. 1992
Superfm. †Cyrtonelloidea Knight and Yochelson 1958
G. †Cornuella Stinchcomb 1986
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Cornuella parva Stinchcomb 1986
G. †Cyclocyrtonella Horný 1962
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Cyclocyrtonella eremita Perner 1903
G. †Cyrtolites Conrad 1838
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Cyrtolites craigensis Reed 1921
Cyrtolites dilatus Ulrich and Scofield 1897
Cyrtolites disjunctus Ulrich and Scofield 1897
Cyrtolites grandis Koken 1897
Cyrtolites hornyi Wahlman 1992
Cyrtolites inornatum Hall 1845
Cyrtolites inprobus Perner 1903
Cyrtolites insculptus Northrop 1939
Cyrtolites nodosus Salter and Aveline 1854
Cyrtolites occultus Perner 1903
Cyrtolites ornatus Conrad 1838
Cyrtolites retrorsus Ulrich and Scofield 1897
Cyrtolites rugosus Perner 1903
Cyrtolites seminulum Perner 1903
Cyrtolites tuboides Perner 1903
Cyrtolites undulatus Perner 1903
G. †Cyrtonellopsis Yochelson 1958
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Cyrtonellopsis huzzahensis Yochelson 1958
G. †Gasconadeoconus Stinchcomb 1986
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Gasconadeoconus ponderosa Stinchcomb 1986
G. †Oriostoma Munier-Chalmas 1876
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Oriostoma actaeon Perner 1907
Oriostoma acutum Lindström 1884
Oriostoma angulatum Wahlenberg 1821
Oriostoma approximans Perner 1903
Oriostoma aspirans Perner 1903
Oriostoma assidua Perner 1903
Oriostoma barrandei Munier-Chalmas 1876
Oriostoma barroisi Spitz 1907
Oriostoma chaleurensis Northrop 1939
Oriostoma compar Perner 1903
Oriostoma confertissima Perner 1903
Oriostoma conjugata Perner 1903
Oriostoma coralli de Sowerby and Murchison 1839
Oriostoma corniculum Perner 1907
Oriostoma coronatum Lindström 1884
Oriostoma costata Perner 1903
Oriostoma delicata Perner 1903
Oriostoma disjunctum Barrois 1889
Oriostoma distans Lindström 1884
Oriostoma dives Perner 1903
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Invalid names: Oriostoma conferta Perner 1903 [synonym]
Oriostoma dulcis Perner 1903
Oriostoma echinatum Oehlert 1877
Oriostoma gerbaulti Oehlert 1877
Oriostoma giganteum Lindström 1884
Oriostoma globosum von Schlotheim 1820
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Invalid names: Oriostoma huntingtonensis Kindle 1903 [synonym], Oriostoma macrolineata Whitfield 1878 [synonym], Oriostoma sulcata Hall 1843 [synonym]
Oriostoma hoyi Hall 1861
Oriostoma ingenua Perner 1903
Oriostoma involuta Barrois 1889
Oriostoma konincki Oehlert 1877
Oriostoma leda d'Orbigny 1850
Oriostoma lineatum Lindström 1884
Oriostoma niagarensis Hall and Whitfield 1875
Oriostoma nux Lindström 1884
Oriostoma oblita Perner 1903
Oriostoma ornatula Perner 1903
Oriostoma parens Perner 1903
Oriostoma parvula Whiteaves 1895
Oriostoma pauper Hall 1867
Oriostoma paveyi Foerste 1919
Oriostoma persculpta Perner 1907
Oriostoma pervetusta Conrad 1838
Oriostoma polygonum Barrois 1889
Oriostoma potens Perner 1903
Oriostoma pulchra Perner 1903
Oriostoma recedens Perner 1903
Oriostoma robusta Perner 1903
Oriostoma roemeri Lindström 1884
Oriostoma rotundimuratus Tassell 1976
Oriostoma rugaelineata Hall and Whitfield 1872
Oriostoma sarydalchaensis Gubanov et al. 1995
Oriostoma sculpta Murchison 1839
Oriostoma selecta Perner 1903
Oriostoma sequens Perner 1903
Oriostoma speciosum Whiteaves 1892
Oriostoma subcostata Perner 1903
Oriostoma tegulata Perner 1903
Oriostoma tenera Perner 1903
Oriostoma thorsteinssoni Rohr and Smith 1978
Oriostoma tremulans Perner 1903
Oriostoma ventricosa Perner 1903
Oriostoma versata Perner 1903
Oriostoma wisbyense Lindström 1884
Oriostoma zonata Koken and Perner 1925
Oriostoma zonatum Lindström 1884
G. †Pollicina Holzapfel 1895
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Pollicina annulata Holzapfel 1895
G. †Sinuitella Yochelson 1962
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Sinuitella norvegica Brøgger 1882
G. †Sinuitopsis Perner 1903
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Sinuitopsis congruens Reed 1921
Sinuitopsis hornyi Marek 1963
Sinuitopsis neglecta Perner 1903
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Invalid names: Sinuitopsis incertus Perner 1903 [synonym], Sinuitopsis platynotus Perner 1903 [synonym], Sinuitopsis transgrediens Perner 1903 [synonym]
Sinuitopsis subquadrata Pitcher 1939
G. †Trigyra Raymond 1908
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Trigyra ulrichi Raymond 1908
Or. †Hypseloconida Peel 1991
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Superfm. †Hypseloconoidea Knight 1956
G. †Cambrioconus Stinchcomb 1986
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Cambrioconus expansus Stinchcomb 1986
G. †Hypseloconus Berkey 1898
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Hypseloconus bessemerense Ulrich et al. 1943
Hypseloconus bonneterrense Stinchcomb 1975
Hypseloconus compressus Ulrich et al. 1931
Hypseloconus ozarkensis Ulrich et al. 1931
Hypseloconus recurvus Berkey 1898
G. †Kirengella Rozov 1968
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Kirengella alta Whitfield 1889
Kirengella ayaktchica Rozov 1968
Kirengella expansus Stinchcomb 1986
Kirengella oregonensis Stinchcomb and Angeli 2002
Kirengella pyramidalis Webers et al. 1992
Kirengella stabilis Berkey 1898
Kirengella washingtonense Stinchcomb 1975
G. †Knightoconus Yochelson et al. 1973
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Knightoconus antarcticus Yochelson et al. 1973
G. †Ozarkoconus Heller 1954
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Ozarkoconus prearcuatus Heller 1954
G. †Shelbyoceras Ulrich et al. 1931
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Shelbyoceras bigpineyensis Stinchcomb 1986
Shelbyoceras robustum Ulrich and Foerste 1936
G. †Yochelsonella Flower 1968
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Yochelsonella compressa Flower 1968
Yochelsonella expansa Flower 1968
Cl. †Helcionelloida Peel 1991
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Fm. †Ceratoconidae Missarzhevsky 1989
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G. †Masculuconus Feng et al. 2000
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Masculuconus curvativus Feng et al. 2000
Or. †Helcionellida Geyer 1994
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Fm. †Coreospiridae Knight 1952
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G. †Anconochilus Knight 1947
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Anconochilus barnesi Knight 1947
G. †Owenella Ulrich and Scofield 1897
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Owenella antiquata Whitfield 1878
Superfm. †Helcionelloidea Wenz 1938
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Fm. †Carinopeltidae Parkhaev 2013
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G. †Gonamella Val'kov and Karlova 1984
G. †Mastakhella Missarzhevsky 1989
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Mastakhella incurva Missarzhevsky 1989
G. †Protoconus Yü 1979
G. †Squamiconus Vassiljeva 1990
Fm. †Helcionellidae Wenz 1938
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G. †Bemella Rozanov et al. 1969
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Bemella jacutica Rozanov and Missarzhevsky 1966
G. †Oelandiella Vostokova 1962
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Oelandiella aequa Resser 1939
Oelandiella bellus Feng et al. 2000
Oelandiella korobkovi Vostokova 1962
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Invalid names: Archaeospira ornata Yü 1979 [synonym], Oelandiella sibirica Vostokova 1962 [synonym], Pseudoyangtzespira selindeica Bokova 1990 [synonym]
Invalid names: Pseudoyangtzespira Bokova 1990 [synonym], Yangtzespira Yü 1979 [synonym]
G. †Papilloconus Feng et al. 2000
G. †Parapelagiella Kobayashi 1939
G. †Securiconus Jiang 1980
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Securiconus obscuricosta Zhou and Xiao 1984
Securiconus simplex Yü 1979
Superfm. †Yochelcionelloidea Runnegar and Jell 1976
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Superfm. †Pelagielloidea Knight 1956
Invalid names: Helcionelliformes Golikov and Starobogatov 1975 [empty]
G. †Anabarella Vostokova 1962
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Anabarella australis Bengtson et al. 1990
Anabarella plana Vostokova 1962
Anabarella simesi MacKinnon 1985
Anabarella tshitaensis Parkhaev 2004
G. †Asperconella Landing and Bartowski 1996
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Asperconella troyensis Resser 1938
G. †Coreospira Saito 1936
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Coreospira rugosa Saito 1936
G. †Dianella Wang 1994
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Dianella dianensis Wang 1994
G. †Eurekapegma MacKinnon 1985
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Eurekapegma cooperi MacKinnon 1985
G. †Helcionella Grabau and Shimer 1909
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Helcionella capula Geyer 1986
Helcionella sidingshanensis Zhou and Xiao 1984
Helcionella yunnanensis Zhang and Babcock 2002
G. †Latouchella Cobbold 1921
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Latouchella accordionata Runnegar and Jell 1976
Latouchella adunca Zhou and Xiao 1984
Latouchella arcuata Gubanov et al. 2004
Latouchella costata Cobbold 1921
Latouchella ostenfeldense Skovsted 2004
G. †Leptostega Geyer 1986
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Leptostega abrupta Shaler and Foerste 1888
Leptostega irregularis Geyer 1986
G. †Mellopegma Runnegar and Jell 1976
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Mellopegma georginensis Runnegar and Jell 1976
Mellopegma indecora Rozanov et al. 1969
Mellopegma uslonica Parkhaev 2004
G. †Oelandia Westergård 1936
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Oelandia jingheensis Yü and Ning 1985
Oelandia pauciplicata Westergård 1936
G. †Perssuakiella Peel 1988
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G. †Protowenella Runnegar and Jell 1976
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Protowenella cobbensis MacKinnon 1985
Protowenella flemingi Runnegar and Jell 1976
Protowenella huainanensis Zhou and Xiao 1984
Protowenella plena Missarzhevsky and Mambetov 1981
Protowenella primaria Zhou and Xiao 1984
G. †Scenella Billings 1872
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Scenella anomala Billings 1865
Scenella augusta Billings 1865
Scenella barrandei Linnarsson 1879
Scenella conica Whiteaves 1884
Scenella conicum Whitfield 1886
Scenella magnifica Ulrich and Scofield 1897
Scenella montrealensis Billings 1865
Scenella obtusa Sardeson 1892
Scenella orithyia Billings 1865
Scenella reticulata Billings 1872
Scenella unicarinata Kobayashi 1934
Scenella venillia Billings 1865
G. †Stenotheca Hicks 1872
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Stenotheca acutacosta Walcott 1890
Stenotheca clotho Walcott 1912
Stenotheca drepanoida He et al. 1984
Stenotheca pojetai Runnegar and Jell 1976
Stenotheca tepee Runnegar and Jell 1976
Stenotheca transbaikalica Parkhaev 2004
G. †Tannuella Rozanov et al. 1969
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Tannuella elinorae Brock and Patterson 2004
G. †Pseudomyona Runnegar 1983
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Pseudomyona queenslandica Runnegar and Jell 1976
G. †Tuarangia MacKinnon 1982
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Tuarangia paparua MacKinnon 1982
G. †Conodia Stinchcomb and Darrough 1995
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Conodia levicosta Stinchcomb and Darrough 1995
G. †Aegides
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Aegides ageneris Jiang 1980
G. †Anhuiconus Zhou and Xiao 1984
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Anhuiconus microtuberus Zhou and Xiao 1984
G. †Archinacellina Horný 1961
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Archinacellina modesta Perner 1903
G. †Barskovia Golubev 1976
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Barskovia hemisymmetrica Golubev 1976
Barskovia jucunda Bokova 1990
G. †Beshtashella Missarzhevsky and Mambetov 1981
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Beshtashella tortilis Missarzhevsky and Mambetov 1981
G. †Ceratoconus Chen and Zhang 1980
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Ceratoconus striatus Chen and Zhang 1980
G. †Emarginoconus Yü 1979
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Emarginoconus mirus Yü 1979
G. †Enigmaconus MacKinnon 1985
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Enigmaconus parvus MacKinnon 1985
G. †Eocyrtolites Yü 1986
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Hujiagouella shouxianensis Zhou and Xiao 1984
G. †Igorella Rozanov et al. 1969
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Igorella iacobinica Geyer 1986
Igorella lata Chen et al. 1981
Igorella minuta Feng et al. 2000
Igorella orientalis Chen et al. 1981
Igorella shabaktiensis Missarzhevsky and Mambetov 1981
Igorella talassica Missarzhevsky and Mambetov 1981
Igorella xundianensis Wang 1994
Invalid names: Chabaktiella Missarzhevsky and Mambetov 1981 [synonym]
G. †Ilsanella Missarzhevsky 1981
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Ilsanella atdabanica Rozanov and Missarzhevsky 1966
Ilsanella galinae Barskova 1988
Ilsanella oblonga Cobbold 1921
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Invalid names: Ilsanella comleyensis Cobbold 1921 [synonym]
Ilsanella reticulata Zhou and Xiao 1984
Ilsanella rozanovi Wang 1994
Ilsanella savitskii Rozanov et al. 1969
G. †Khairkhania Missarzhevsky 1980
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Khairkhania evoluta Voronin et al. 1982
Khairkhania evoluto Elicki and Schneider 1992
Khairkhania rotato Missarzhevsky 1980
G. †Kotysium Horný 1961
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Kotysium praepostera Perner 1903
G. †Litavina Horný 1963
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Litavina mesodevonica Horný 1963
G. †Mackenziella Voronova et al. 1987
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Mackenziella dilatata Voronova et al. 1987
G. †Marocella Geyer 1986
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Marocella depressa Kiær 1916
Marocella mira Geyer 1986
Marocella morenensis Yochelson and Gil Cid 1984
Marocella tichkaensis Geyer 1986
G. †Moyerokania Rozov 1970
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Moyerokania miagkovae Rozov 1970
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Neocyrtolites advena Perner 1903
G. †Obtusoconus Yü 1979
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Obtusoconus foliaceus MacKinnon 1985
Obtusoconus reduncus Gubanov et al. 2004
G. †Orthoconus Stinchcomb 1986
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Orthoconus striatus Stinchcomb 1986
G. †Ozarkplina Stinchcomb 1986
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Ozarkplina meramecensis Stinchcomb 1986
G. †Palaeoscurria Perner 1903
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Palaeoscurria calyptrata Perner 1903
Palaeoscurria ordovicina Horný 1963
Palaeoscurria transversa Perner 1903
Invalid names: Palaeoscurria Perner 1903 [objective synonym]
G. †Paraceratoconus Zhou and Xiao 1984
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Paraceratoconus ruidus Zhou and Xiao 1984
G. †Parailsanella Voronova et al. 1987
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Parailsanella acris Voronova et al. 1987
Parailsanella inpocera Zhegallo 1983
Parailsanella lata Parkhaev 2001
Parailsanella sayutinae Parkhaev 2004
G. †Pararaconus Bengtson et al. 1990
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Pararaconus staitorum Bengtson et al. 1990
G. †Patelliconus Horný 1961
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Patelliconus primulus Perner 1903
G. †Pentalina Horný 1961
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Pentalina prantli Horný 1961
G. †Pilinopsis Horný 1961
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Pilinopsis eminens Perner 1903
G. †Platypilina Horný 1961
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Platypilina tardissima Perner 1903
G. †Proconus Webers et al. 1992
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Proconus incertis Webers et al. 1992
G. †Proteroconus Stinchcomb 1986
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Proteroconus eminense Stinchcomb 1986
G. †Protoconchioides Shaw 1962
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Protoconchioides conula Walcott 1884
Protoconchioides douli Geyer 1994
Protoconchioides varians Walcott 1886
G. †Purella Missarzhevsky 1974
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Purella antiqua Kiær 1916
Purella cristata Missarzhevsky 1974
Purella squamulosa Qian and Bengtson 1989
Invalid names: Rozanoviella Missarzhevsky 1980 [synonym]
G. †Pygmaeoconus Horný 1961
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Pygmaeoconus compressus Koken and Perner 1925
Pygmaeoconus conoideus Koken and Perner 1925
Pygmaeoconus gnomicus Gutiérrez-Marco and Martin Sánchez 1983
Pygmaeoconus hampakuensis Kobayashi 1934
Pygmaeoconus krafti Horný 1997
Pygmaeoconus porrectus Perner 1903
Pygmaeoconus sohsanensis Kobayashi 1934
G. †Randomia Matthew 1899
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Randomia aurorae Matthew 1899
G. †Retipilina Horný 1961
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Retipilina knighti Horný 1956
G. †Salanyella Missarzhevsky 1980
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Salanyella costulata Missarzhevsky and Mambetov 1981
G. †Tannuspira Missarzhevsky 1989
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Tannuspira magnifica Missarzhevsky 1989
G. †Tichkaella Geyer 1986
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Tichkaella carinata Rasetti 1957
Tichkaella hamata Geyer 1986
Tichkaella insulcata Rasetti 1957
G. †Tuoraconus Missarzhevsky 1989
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Tuoraconus acutatus Missarzhevsky 1989
G. †Xianfengella He and Yang 1982
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Xianfengella prima He and Yang 1982
Xianfengella yatesi Parkhaev 2001
G. †Yangtzeconus Yü 1979
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Yangtzeconus striatus Cobbold 1921
G. †Hemithecella Butts 1941
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Hemithecella abrupta Stinchcomb and Darrough 1995
Hemithecella quinquelites Stinchcomb and Darrough 1995
G. †Matthevia Walcott 1885
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Matthevia variabilis Walcott 1885
G. †Paleochiton Smith and Toomey 1964
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G. †Helminthochiton Salter 1846
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Helminthochiton papilio Whidborne 1892
Cl. †Rostroconchia Pojeta et al. 1972
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Or. †Conocardiida Neumayr 1891
Or. †Ribeirioida Kobayashi 1933
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Superfm. †Ischyrinioidea Kobayashi 1933
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Fm. †Ischyriniidae Kobayashi 1933
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G. †Anisotechnophorus Pojeta and Runnegar 1976
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G. †Eoischyrinia Kobayashi 1933
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Eoischyrinia billingsi Kobayashi 1933
G. †Pauropegma Pojeta et al. 1977
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Pauropegma jelli Pojeta and Runnegar 1976
G. †Tolmachovia Howell and Kobayashi 1936
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Tolmachovia babini Gutiérrez-Marco 1997
Tolmachovia belfordi Pojeta et al. 1977
Tolmachovia concentrica Howell and Kobayashi 1936
Tolmachovia corbetti Pojeta and Gilbert-Tomlinson 1977
Tolmachovia crassa Thoral 1935
Invalid names: Ischyrinoida Pojeta and Runnegar 1976 [synonym]
G. †Apoptopegma Pojeta et al. 1977
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Apoptopegma craddocki Webers et al. 1992
Apoptopegma dickinsi Pojeta et al. 1977
G. †Cymatopegma Pojeta et al. 1977
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Cymatopegma semiplicatum Pojeta et al. 1977
G. †Ischyrinia Billings 1866
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Ischyrinia norvegica Soot-Ryen 1960
Ischyrinia winchelli Billings 1866
G. †Kimopegma Pojeta et al. 1977
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Kimopegma huckitta Pojeta et al. 1977
Kimopegma jonesi Pojeta et al. 1977
Kimopegma pinnatum Pojeta et al. 1977
G. †Myocaris Salter 1864
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Myocaris plicata Billings 1866
Myocaris sharpei Perner 1903
G. †Oepikila Pojeta and Runnegar 1976
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Oepikila cambrica Runnegar and Pojeta 1974
G. †Pinnocaris Etheridge 1878
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Pinnocaris americana Pojeta and Runnegar 1976
Pinnocaris curvata Reed 1907
Pinnocaris lapworthi Etheridge 1878
Pinnocaris robusta Pojeta et al. 1977
Pinnocaris wellsi Pojeta et al. 1977
G. †Pleuropegma Pojeta et al. 1977
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Pleuropegma plicatum Pojeta et al. 1977
G. †Pseudotechnophorus Kobayashi 1933
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Pseudotechnophorus typicalis Kobayashi 1933
G. †Ptychopegma Pojeta et al. 1977
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Ptychopegma burgeri Pojeta et al. 1977
G. †Ribeiria Sharpe 1853
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Ribeiria apusoides Schubert and Waagen 1904
Ribeiria australiensis Pojeta and Runnegar 1976
Ribeiria bassleri Kobayashi 1933
Ribeiria calcifera Billings 1865
Ribeiria compressa Whitfield 1886
Ribeiria csiro Pojeta et al. 1977
Ribeiria francae Sánchez 2000
Ribeiria lucan Walcott 1924
Ribeiria manchurica Kobayashi 1933
Ribeiria parva Collie 1903
Ribeiria personata Thoral 1935
Ribeiria pholadiformis Sharpe 1853
Ribeiria pojetai Sánchez 2005
Ribeiria runnegari Pojeta et al. 1977
Ribeiria spinosa Babin and Branisa 1987
Ribeiria taylori Pojeta and Runnegar 1976
G. †Technophorus Miller 1889
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Technophorus cancellatus Ruedemann 1901
Technophorus cincinnatiense Miller and Faber 1894
Technophorus divaricatus Ulrich 1892
Technophorus faberi Miller 1889
Technophorus kempae Pojeta et al. 1977
Technophorus milleri Pojeta and Runnegar 1976
Technophorus minutus Zhang 1984
Technophorus nicolli Pojeta et al. 1977
Technophorus planei Pojeta et al. 1977
Technophorus subacutus Ulrich 1892
Technophorus walteri Pojeta et al. 1977
G. †Wanwania Kobayashi 1933
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Wanwania ambonychiformis Kobayashi 1933
Wanwania cambrica Kobayashi 1933
Wanwania drucei Pojeta et al. 1977
G. †Watsonella Grabau 1900
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Watsonella crosbyi Grabau 1900
Watsonella terranovica Matthew 1899
Invalid names: Heraultipegma Pojeta and Runnegar 1976 [synonym]
G. †Aphelakardia Hoare 1990
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Aphelakardia indianense Miller 1891
G. †Arceodomus Pojeta and Runnegar 1976
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Arceodomus angusta Hoare et al. 2002
Arceodomus cortazari Mallada 1875
Arceodomus fritschi Gemmellaro 1890
Arceodomus glabrata Easton 1962
Arceodomus japonicum Nishida 1968
Arceodomus langenheimi Wilson 1970
Arceodomus ouralicum de Verneuil 1845
Arceodomus praepermicus Fredericks 1915
Arceodomus prolata Hoare and Mapes 1990
Arceodomus siculum Gemmellaro 1890
Arceodomus snjatkovi Fedotov 1932
Arceodomus sphairikos Hanger et al. 2000
G. †Bigalea Pojeta and Runnegar 1976
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Bigalea ohioensis Pojeta and Runnegar 1976
Bigalea yangi Pojeta and Runnegar 1976
G. †Bransonia Pojeta and Runnegar 1976
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Bransonia australe M'Coy 1847
Bransonia projecta Waterhouse 1987
Bransonia robustum Fletcher 1943
Bransonia truncata Fletcher 1943
Bransonia wilsoni Pojeta and Runnegar 1976
G. †Cassowarioides Johnston and Chatterton 1983
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Cassowarioides anisomorpha Caldwell and Chatterton 1995
Cassowarioides perryi Johnston and Chatterton 1983
Cassowarioides polgari Caldwell and Chatterton 1995
G. †Conocardium Bronn 1835
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Conocardium aquisgranense Beushausen 1895
Conocardium armatum Phillips 1836
Conocardium elongatum Sowerby 1815
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Invalid names: Conocardium rostratum Fleming 1828 [replaced]
Conocardium eximum de Koninck 1885
Conocardium frater Whidborne 1896
Conocardium gympiense Fletcher 1943
Conocardium incarceratum Clarke 1907
Conocardium inceptum Hall 1859
Conocardium inflatum M'Coy 1844
Conocardium lyelli d’Archiac and de Verneuil 1842
Conocardium nexile Branson 1942
Conocardium philipsii d'Orbigny 1850
Conocardium plinthinatus Branson 1942
Conocardium pseudobellum Pojeta and Runnegar 1976
Conocardium regulare de Koninck 1885
Conocardium retusum Maurer 1885
Conocardium sowerbyi de Koninck 1876
Conocardium spinalatum Rowley 1900
Conocardium ventriculosum Branson 1942
G. †Eopteria Billings 1865
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Eopteria agustini Sánchez 2000
Eopteria aiteneria Popov et al. 2003
Eopteria asiatica Kobayashi 1933
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Invalid names: Eopteria obsolata Kobayashi 1933 [synonym]
Eopteria conocardiformis Pojeta and Runnegar 1976
Eopteria crassa Thoral 1935
Eopteria flora Kobayashi 1933
Eopteria ornata Billings 1865
Eopteria richardsoni Billings 1865
Eopteria struszi Pojeta et al. 1977
Eopteria trilobita Kobayashi 1934
Eopteria ventricosa Whitfield 1886
G. †Euchasma Billings 1865
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Euchasma blumenbachi Billings 1859
Euchasma colliveri Cook and Camilleri 2001
Euchasma eopteriformis Kobayashi 1933
Euchasma jonesi Pojeta and Runnegar 1976
Euchasma multistriata Kobayashi 1933
Euchasma mytiliforme Pojeta and Runnegar 1976
Euchasma swarkoi Pojeta et al. 1977
Invalid names: Euchasmella Kobayashi 1933 [synonym]
G. †Hippocardia Brown 1843
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Hippocardia alborza Hoare and Aghababula 2001
Hippocardia angelicum Talent and Philip 1956
Hippocardia bellulus Barrande 1881
Hippocardia cumberlandiae Prosser and Kindle 1913
Hippocardia curta Hoare 1989
Hippocardia herculea de Koninck 1885
Hippocardia herricki Hoare 1990
Hippocardia hibernica Sowerby 1815
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Invalid names: Hippocardia trigonalis Phillips 1836 [synonym]
Hippocardia hydei Hoare 1990
Hippocardia hystericum von Schlotheim 1820
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Invalid names: Hippocardia marsi Oehlert 1887 [synonym]
Hippocardia kermani Hoare and Aghababula 2001
Hippocardia konincki Baily 1871
Hippocardia monroica Sherzer and Grabau 1910
Hippocardia mundulum Fletcher 1943
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Invalid names: Hippocardia abscissum Fletcher 1943 [synonym], Hippocardia laseroni Fletcher 1943 [synonym]
Hippocardia niagarense Winchell and Marcy 1866
Hippocardia obesum de Koninck 1885
Hippocardia ohioense Meek 1871
Hippocardia pristis M'Coy 1844
Hippocardia procumbens Sandberger and Sandberger 1855
Hippocardia pulchellum White and Whitfield 1862
Hippocardia reflexa Zeiler 1857
Hippocardia rhenana Beushausen 1895
Hippocardia tournaisense Branson 1942
Hippocardia truncata Pohl 1929
G. †Mulceodens Pojeta and Runnegar 1976
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Mulceodens aequicostatus Phillips 1848
Mulceodens eboraceus Hall 1860
Mulceodens foxi Johnston and Chatterton 1983
Mulceodens jaanussoni Pojeta and Runnegar 1976
Mulceodens johnstoni Caldwell and Chatterton 1995
Mulceodens schneideri Johnston and Chatterton 1983
Mulceodens sibleyense La Rocque 1950
Mulceodens wilsoni Johnston and Chatterton 1983
G. †Nehedia Johnston and Chatterton 1983
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Nehedia bainsi Johnston and Chatterton 1983
Nehedia bergeraci Caldwell and Chatterton 1995
Nehedia grovesi Johnston and Chatterton 1983
Nehedia restricta Caldwell and Chatterton 1995
Nehedia tricarina Caldwell and Chatterton 1995
G. †Pojetaconcha Waterhouse 1987
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Pojetaconcha alabamensis Pojeta and Runnegar 1976
Pojetaconcha antiquata Branson 1942
Pojetaconcha beecheri Raymond 1905
Pojetaconcha chapronierei Pojeta et al. 1977
Pojetaconcha cressmani Pojeta and Runnegar 1976
Pojetaconcha limatula Bradley 1930
Pojetaconcha oweni Kindle 1903
Pojetaconcha pygmaea Hisinger 1837
Pojetaconcha townleyi Pojeta and Gilbert-Tomlinson 1977
G. †Pseudobigalea Hoare et al. 1982
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Pseudobigalea crista Hoare et al. 1982
G. †Pseudoconocardium Zavodowsky 1960
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Pseudoconocardium licharewi Zavodowsky 1960
G. †Pseudomulceodens Hoare 1990
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G. †Wanwanella Kobayashi 1933
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Wanwanella striata Kobayashi 1933
Wanwanella trigonalis Kobayashi 1933
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Invalid names: Wanwanella tumida Kobayashi 1933 [synonym]
Invalid names: Wanwanwoidea Kobayashi 1933 [synonym]
G. Fissidentalium Fischer 1885
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G. †Plagioglypta Pilsbry 1898
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G. †Scissuradentalium Yoo 1988
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G. †Ardrossania Bengtson et al. 1990
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Ardrossania paveyi Bengtson et al. 1990
G. †Bagenovia Horný 1957
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Bagenovia kazakhstanica Koneva 1976
Bagenovia procera Koneva 1976
Bagenovia sajanica Horný 1957
G. †Cambridium Horný 1957
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Cambridium asiaticum Koneva 1979
Cl. †Paragastropoda Linsley and Kier 1984
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Or. †Mimospirida Dzik 1983
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Superfm. †Clisospiroidea Miller 1889
Invalid names: Hyperstrophina Linsley and Kier 1984 [objective synonym], Mimospirina Dzik 1983 [empty]
G. †Angulospira Wängberg-Eriksson 1979
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Angulospira striata Wängberg-Eriksson 1979
G. †Antispira Perner 1903
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Antispira lamellifera Horný 1964
G. †Antizyga Horný 1964
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Antizyga pagoda Horný 1964
G. †Atracura Horný 1964
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Atracura candida Horný 1964
G. †Bodospira Wängberg-Eriksson 1979
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Bodospira kallholniensis Wängberg-Eriksson 1979
Bodospira undulata Wängberg-Eriksson 1979
G. †Clisospira Billings 1865
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Clisospira bassleri Raymond 1908
Clisospira borkholmiensis Koken and Perner 1925
Clisospira christianieae Koken and Perner 1925
Clisospira curiosa Billings 1865
Clisospira ingrica Koken 1897
Clisospira niuhsintaiensis Kobayashi 1933
Clisospira reticulata Longstaff 1924
Clisospira rugosa Koken 1897
G. †Conoclisa Horný 1964
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Conoclisa minuta Perner 1903
Conoclisa schucherti Perner 1903
G. †Ferrogyra Horný 1964
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Ferrogyra antiqua Perner 1911
G. †Helicotis Koken and Perner 1925
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Helicotis rugifera Koken 1897
G. †Hyperstrophema Horný 1964
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G. †Kobayashiella Endo 1937
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Kobayashiella circe Walcott 1905
Kobayashiella heritagensis Webers et al. 1992
G. †Laeogyra Perner 1903
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Laeogyra arvetensis Wängberg-Eriksson 1979
Laeogyra bohemica Perner 1903
Laeogyra gracilis Koken 1897
Laeogyra reinwaldti Öpik 1930
G. †Liomphalus Chapman 1916
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Liomphalus disjunctus Hall 1859
G. †Matherella Walcott 1912
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Matherella antarctica Webers et al. 1992
Matherella lirata Whitfield 1886
Matherella saratogensis Walcott 1886
Matherella walcotti Kobayashi 1933
Invalid names: Matherellina Kobayashi 1933 [synonym]
G. †Mimospira Koken and Perner 1925
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Mimospira abbae Peel 1975
Mimospira acuticostata Bates 1963
Mimospira balclatchiensis Longstaff 1924
Mimospira barrandei Frýda 1989
Mimospira cochleata Lindström 1884
Mimospira kallholniensis Wängberg-Eriksson 1979
Mimospira similis Wängberg-Eriksson 1979
Mimospira tenuistriata Wängberg-Eriksson 1979
G. †Onychochilus Lindström 1884
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Onychochilus abruptum Foerste 1893
Onychochilus contrarium Lindström 1884
Onychochilus perversa Lindström 1884
Onychochilus pervertens Perner 1903
Onychochilus physa Lindström 1884
Onychochilus reticulatum Lindström 1884
Onychochilus reversus Hall 1860
Onychochilus sinistralis Rohr and Smith 1978
Invalid names: Palaeopupa Foerste 1893 [synonym]
G. †Procrucibulum Perner 1903
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Procrucibulum simplex Perner 1903
G. †Sinistracirsa Cossmann 1908
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Sinistracirsa altera Perner 1903
G. †Tapinogyra Wängberg-Eriksson 1979
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Tapinogyra glaphyra Wängberg-Eriksson 1979
G. †Trochoclisa Horný 1964
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Trochoclisa bouceki Frýda and Manda 1997
Trochoclisa perfida Horný 1964
G. †Undospira Wängberg-Eriksson 1979
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Undospira striata Wängberg-Eriksson 1979
Undospira turrita Koken and Perner 1925
G. †Voskopiella Frýda 1992
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Voskopiella barborae Frýda 1992
G. †Yuwenia Runnegar 1981
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Yuwenia bentleyi Runnegar 1981
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Invalid names: Yuwenia juliana Elicki 1994 [synonym]
Cl. Gastropoda Cuvier 1795 [snail]
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Or. †Bellerophontida Ulrich and Scofield 1897
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Subor. †Bellerophontina Ulrich and Scofield 1897
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Superfm. †Bellerophontoidea M'Coy 1851
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Fm. †Plectonotidae Boucot and Yochelson 1966
G. †Thoralispira Horný and Vizcaïno 1995
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Thoralispira laevis Thoral 1935
Superfm. †Tropidodiscoidea Knight 1956
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Fm. †Tropidodiscidae Knight 1956
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G. †Kosorodiscus Horný 2005
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Kosorodiscus ruzickai Horný 2005
G. †Nylanderina Boucot et al. 1967
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Nylanderina bisulcata Römer 1843
Nylanderina goldringae Boucot et al. 1967
G. †Sinuitina Knight 1945
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Sinuitina acutilira Hall 1859
Sinuitina brevilineatus Conrad 1842
Sinuitina cordiformis Newell 1935
Sinuitina gratiosus de Koninck 1883
Sinuitina hyalina Clarke 1904
Sinuitina morzadeci Blodgett et al. 1999
Sinuitina multirugatus Cowper Reed 1906
Sinuitina nudidorsa Rollins 1975
Sinuitina oldhami Portlock 1843
Sinuitina planilata Ebbestad and Yochelson 2000
Sinuitina portulacoides Campbell and Engel 1963
Sinuitina punjabica Reed 1944
Sinuitina slavinka Horný 1962
Sinuitina spinari Horný 1963
G. †Spirilira Pinilla et al. 2007
Subfm. †Temnodiscinae Horný 1962
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G. †Cyrtolitina Ulrich and Scofield 1897
G. †Eobucania Kobayashi 1955
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Eobucania bohemica Horný 1997
Eobucania mexicana Yochelson 1968
Eobucania palinurus Billings 1865
Eobucania pulchra Kobayashi 1955
Eobucania subovatus Cleland 1900
G. †Peelerophon Yochelson 1982
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Peelerophon mergli Frýda 1988
Peelerophon oehlerti Bergeron 1889
G. †Peruniscus Horný 1962
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Peruniscus cassinensis Whitfield 1886
Peruniscus macer Billings 1865
Peruniscus pusillus Perner 1903
Peruniscus ramseyensis Hicks 1873
G. †Strepsodiscus Knight 1948
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Strepsodiscus hoyti Walcott 1890
Strepsodiscus major Knight 1948
Strepsodiscus pagoda Walcott 1905
Strepsodiscus praecursor Knight 1948
Strepsodiscus shinetonensis Callaway 1877
Strepsodiscus splettstoesseri Webers et al. 1992
Strepsodiscus strongi Whitfield 1878
Invalid names: Chalarostrepsis Knight 1948 [synonym]
G. †Temnodiscus Koken 1896
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Temnodiscus accola Koken 1896
Temnodiscus arrosus Lindström 1884
Temnodiscus euryomphalus Lindström 1884
Temnodiscus eximius Perner 1903
Temnodiscus fletcheri Reed 1921
Temnodiscus ingricus Koken and Perner 1925
Temnodiscus lamellifer Lindström 1884
Temnodiscus minuta Koken and Perner 1925
Temnodiscus nautilinus Koken and Perner 1925
Temnodiscus nitidula Ulrich 1879
Temnodiscus obliquus Lindström 1884
Temnodiscus ogygiae Koken and Perner 1925
Temnodiscus orbiculus Lindström 1884
Temnodiscus parvus Koken and Perner 1925
Temnodiscus pharetroides Chapman 1916
Temnodiscus pleurogonus Koken and Perner 1925
Temnodiscus secans Koken 1897
Temnodiscus suecicus Koken 1897
Temnodiscus viator Koken and Perner 1925
G. †Vorticina Gordon and Yochelson 1987
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Vorticina anneae Conkin 1957
Vorticina cyrtolites Hall 1858
Vorticina vortex Gordon and Yochelson 1987
G. †Zonidiscus Spitz 1907
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Zonidiscus clemvillensis Northrop 1939
Zonidiscus discus Lindström 1884
Zonidiscus grayi Reed 1921
Zonidiscus incola Perner 1903
Zonidiscus youngi Foerste 1889
G. †Chippewaella Gunderson 1993
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Chippewaella patellitheca Gunderson 1993
Invalid names: Pleurotomaria verticillata Webster 1906 [nomen vanum], Pleurotomaria verticillata Webster 1906 [nomen vanum], Pleurotomaria viola Billings 1865 [nomen vanum], Turbo guadalupensis Shumard 1859 [nomen nudum], Turbo texana Shumard 1859 [nomen vanum]
G. †Anapetopsis Peel 1975
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Anapetopsis fasciatus Lindström 1884
Anapetopsis fastigiatus Lindström 1884
Anapetopsis lalajae Peel 1975
Anapetopsis maclearni Peel 1975
G. †Aspidotheca Dahmer 1936
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Aspidotheca schrieli Dahmer 1936
Aspidotheca tripleura Fuchs 1913
G. †Bellerophon de Montfort 1808
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Bellerophon alutaceus d'Orbigny 1850
Bellerophon barrandei Oehlert 1877
Bellerophon bicarenus Léveillé 1835
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Invalid names: Bellerophon scalifer de Koninck 1883 [synonym]
Bellerophon chapmani Blodgett 1992
Bellerophon chesterensis Weller 1920
Bellerophon clarki Clarke and Swartz 1913
Bellerophon cresswelli Etheridge 1891
Bellerophon creswelli Etheridge 1891
Bellerophon goslariensis Roemer 1856
Bellerophon graphicus Moore 1941
Bellerophon havliceki Horný 1963
Bellerophon helena Hall 1879
Bellerophon hyalina Hall 1879
Bellerophon incomptus Gurley 1884
Bellerophon janus Stache 1877
Bellerophon laticallis Hoare et al. 1997
Bellerophon latofasciatus Sandberger and Sandberger 1853
Bellerophon lineatus Dechen 1832
Bellerophon livengoodensis Blodgett 1992
Bellerophon macromphalus Römer 1843
Bellerophon macrostoma Römer 1843
Bellerophon mongoliensis Grabau 1931
Bellerophon nactus Hall 1879
Bellerophon nevadensis Blodgett and Johnson 1992
Bellerophon newberryi Meek 1871
Bellerophon pelops Hall 1862
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Invalid names: Bellerophon exponens Hall 1879 [synonym], Bellerophon glyptotaenius Radabaugh 1942 [synonym], Bellerophon homalotaenius Radabaugh 1942 [synonym]
Bellerophon pygmaeus d'Eichwald 1859
Bellerophon ruthveni Reed 1901
Bellerophon scaber Perner 1903
Bellerophon scheii Tolmachoff 1930
Bellerophon shelbiensis Clarke and Ruedemann 1903
Bellerophon singularis Moore 1941
Bellerophon solvensis Hicks 1873
Bellerophon spergensis Gordon and Yochelson 1983
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Invalid names: Bellerophon sublaevis Hall 1856 [replaced]
Bellerophon stummi Linsley 1968
Bellerophon vasulites de Montfort 1808
G. †Bubovicus Horný 1962
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Bubovicus tarda Perner 1903
G. †Bucanella Meek 1871
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Bucanella crispata Koken 1897
Bucanella homalotropis Koken 1897
Bucanella nana Meek 1871
Bucanella revaliensis Koken 1897
Bucanella tripla Whitfield 1889
G. †Bucania Hall 1847
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Bucania aotii Kobayashi 1958
Bucania cornu Koken 1897
Bucania czekanowskii Schmidt 1858
Bucania dorsoplana Knod 1908
Bucania draboviensis Perner 1903
Bucania elliptica Ulrich and Scofield 1897
Bucania gracillima Koken 1896
Bucania groenlandica Peel 1991
Bucania halli Ulrich and Scofield 1897
Bucania minganensis Twenhofel 1938
Bucania oelandica Koken 1896
Bucania peracuta Ulrich and Scofield 1897
Bucania pilula Lindström 1884
Bucania playfairi Reed 1921
Bucania pojetai Wahlman 1992
Bucania radiata d'Eichwald 1856
Bucania reticulata Koken and Perner 1925
Bucania robusta Whiteaves 1904
Bucania rugatina Ulrich and Scofield 1897
Bucania simulatrix Ulrich and Scofield 1897
Bucania squamosus Lindström 1884
Bucania stephnae Peel 1991
Bucania subangulata Ulrich and Scofield 1897
Bucania sublata Ulrich and Scofield 1897
Bucania sulcatina Emmons 1842
Bucania tsuibonensis Kobayashi 1934
G. †Carinaropsis Hall 1847
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Carinaropsis carinata Hall 1847
Carinaropsis cunulae Hall 1861
Carinaropsis cymbula Hall 1861
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Invalid names: Carinaropsis phalera Sardeson 1892 [synonym]
Carinaropsis explanata Ulrich and Scofield 1897
Carinaropsis gracilis Reed 1921
Carinaropsis maccoyi Reed 1921
Carinaropsis minima Ulrich and Scofield 1897
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Invalid names: Carinaropsis acuta Ulrich and Scofield 1897 [synonym]
G. †Collina Jhaveri 1969
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Collina altemontanus Spitz 1907
Collina exquisitus Spitz 1907
Collina telescopus Frech 1894
Collina whidbornei Perner 1903
G. †Cyclotheca Teichert 1935
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Cyclotheca bohemica Barrande 1867
G. †Cymbularia Koken 1896
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Cymbularia aequalis Koken and Perner 1925
Cymbularia alatus Portlock 1843
Cymbularia angusta Koken 1897
Cymbularia bullatus Koken and Perner 1925
Cymbularia compressa Koken and Perner 1925
Cymbularia cultrijugata Roemer 1876
Cymbularia decipens Reed 1921
Cymbularia decorata Ríha 1936
Cymbularia galeata Koken 1896
Cymbularia janica Horný 1963
Cymbularia klouceki Horný 1997
Cymbularia merita Reed 1921
Cymbularia nuciformis Perner 1903
Cymbularia nummulina Koken and Perner 1925
Cymbularia pygmaea Koken and Perner 1925
Cymbularia roemeri Koken and Perner 1925
Cymbularia sculptus Perner 1903
Cymbularia turnbulli Reed 1921
G. †Euphemites Warthin 1930
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Euphemites barumensis Whidborne 1896
Euphemites blaneyanus McChesney 1859
Euphemites compressus Elias 1958
Euphemites devoniana Radabaugh 1942
Euphemites enodis Sturgeon 1964
Euphemites fremontensis Kulas and Batten 1997
Euphemites hermosus Kues and Batten 2001
Euphemites incarinatus Easton 1943
Euphemites kingi Yochelson 1960
Euphemites konincki Weir 1931
Euphemites labrosa Campbell and Engel 1963
Euphemites lentiformis Weller 1916
Euphemites luxuriosus Yochelson 1960
Euphemites multiliratus Sturgeon 1964
Euphemites nautiloides Winchell 1862
Euphemites obsoleta Hall 1879
Euphemites orbignyanus Portlock 1843
Euphemites pustula Yoo 1994
Euphemites richardsoni Schindel and Yochelson 1979
Euphemites sacajawensis Branson 1937
Euphemites sparciliratus Yochelson 1960
Euphemites stamineus Conrad 1842
Euphemites urei Fleming 1828
Euphemites vittatus McChesney 1859
Euphemites wongi Yin 1932
G. †Groomodiscus Rohr and Yochelson 1990
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Groomodiscus bouceki Horný 1997
Groomodiscus calcifer Cleland 1900
Groomodiscus rossi Rohr and Yochelson 1990
G. †Gyrospira Boucot 1956
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Gyrospira tourteloti Boucot 1956
G. †Knightites Moore 1941
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Knightites bransoni Yochelson 1960
Knightites maximus Yochelson 1960
Knightites medius Yochelson 1960
Invalid names: Knightites (Knightites) Moore 1941 [invalid subgroup]
G. †Kodymites Horný 1962
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Kodymites nestor Horný 1962
Kodymites vulcanus Horný 1963
G. †Kokenospira Bassler 1915
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Kokenospira costalis Ulrich and Scofield 1897
Kokenospira esthona Koken 1889
Kokenospira inflata Koken 1897
Kokenospira insularis Koken and Perner 1925
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Invalid names: Kokenospira depressa Koken 1897 [synonym]
Kokenospira lateralis d'Eichwald 1860
Kokenospira lingualis Salter and Aveline 1854
Kokenospira retifera Öpik 1930
Kokenospira secundus Reed 1906
G. †Liljevallospira Knight 1945
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Liljevallospira elegantulus Lindström 1884
Liljevallospira tubulosa Lindström 1884
G. †Megalomphala Ulrich and Scofield 1897
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Megalomphala carinata Ebbestad 1999
Megalomphala contorta d'Eichwald 1856
Megalomphala crassa Koken 1896
Megalomphala dawesi Peel 1991
Megalomphala latissima Koken 1897
Megalomphala marjorae Peel 1991
Megalomphala pinguis Koken and Perner 1925
Megalomphala salpinx Koken 1897
Megalomphala taenia Lindström 1884
Megalomphala wilfredi Peel 1991
G. †Merriamites Blodgett and Johnson 1995
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Merriamites eurekae Blodgett and Johnson 1992
G. †Offleya Poulsen 1974
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Offleya inexpectata Poulsen 1974
G. †Paleuphemites Horný 1962
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Paleuphemites petrboki Horný 1962
G. †Patellostium Waagen 1880
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Patellostium britannicum Amler and Heidelberger 2003
Patellostium witryanum de Koninck 1843
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Invalid names: Patellostium hyalinum de Ryckholt 1847 [synonym], Patellostium phalenum de Ryckholt 1847 [synonym]
G. †Pedasiola Spriesterbach 1919
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Pedasiola rhenana Spriesterbach 1919
G. †Pharetrolites Wenz 1938
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Pharetrolites elegans Koken and Perner 1925
Pharetrolites murchisoni de Ferrusac and d'Orbigny 1840
Pharetrolites pharetra Lindström 1884
Pharetrolites tumidus Koken 1896
Pharetrolites vostokovae Rohr et al. 1979
G. †Phragmolites Conrad 1838
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Phragmolites bellulus Ulrich and Scofield 1897
Phragmolites compressus Conrad 1838
Phragmolites dyeri Hall 1872
Phragmolites excavatus Koken and Perner 1925
Phragmolites fimbriata Ulrich and Scofield 1897
Phragmolites hyperboreus Troedsson 1928
Phragmolites imbricata Meek and Worthen 1868
Phragmolites lindstroemi Koken and Perner 1925
Phragmolites obliquus Ulrich and Scofield 1897
Phragmolites pannosus Billings 1866
Phragmolites slawsoni Hussey 1926
Phragmolites suarezi Fischer 1969
Phragmolites triangularis Ulrich and Scofield 1897
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Invalid names: Phragmolites grandis Ulrich and Scofield 1897 [synonym]
Invalid names: Conradella Ulrich and Scofield 1897 [synonym]
G. †Plectonotus Clarke 1899
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Plectonotus derbyi Clarke 1899
Plectonotus dereimsi Knod 1908
Plectonotus hapsideus Clarke 1913
Plectonotus raricostatus Radabaugh 1942
Plectonotus reissi Clarke 1899
Plectonotus salteri Clarke 1899
G. †Praematuratropis Rollins et al. 1971
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Praematuratropis ovatus Rollins et al. 1971
G. †Pterotheca Salter 1853
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Pterotheca angusta Raymond 1921
Pterotheca anticostiana Twenhofel 1928
Pterotheca attenuata Hall 1861
Pterotheca avirostris Huxley and Etheridge 1865
Pterotheca clochensis Foerste 1924
Pterotheca consorbina Barrande 1872
Pterotheca estona Teichert 1928
Pterotheca expansa Emmons 1842
Pterotheca harviei Foerste 1924
Pterotheca lata Teichert 1930
Pterotheca pentagona Foerste 1914
Pterotheca saffordi Hall 1861
Pterotheca simplex Reed 1909
Pterotheca transversa Portlock 1843
Pterotheca transversa Portlock 1843
Pterotheca trimerelloides Clarkson et al. 1995
Pterotheca undulata Hall 1861
G. †Ptychosphaera Perner 1903
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Ptychosphaera carinata de Sowerby and Murchison 1839
Ptychosphaera constricta Perner 1903
Ptychosphaera convolutus de Koninck 1876
Ptychosphaera ouralicus Murchison et al. 1845
Ptychosphaera thalia Hall 1859
G. †Retispira Knight 1945
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Retispira boltoni Weir 1931
Retispira carinatus Tolmachoff 1930
Retispira christinae Cook et al. 2003
Retispira crucilirata Dickins 1963
Retispira culleni Campbell and Engel 1963
Retispira decussatus Fleming 1828
Retispira deflectus Weller 1900
Retispira devonica Hall and Whitfield 1872
Retispira elegans de Ferrusac and d'Orbigny 1840
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Invalid names: Retispira decussata Sandberger and Sandberger 1855 [synonym]
Retispira elevata Heidelberger 2001
Retispira exilis de Koninck 1883
Retispira fascireticulatus Hoare et al. 1997
Retispira fragilis Yochelson 1960
Retispira keyniana de Koninck 1844
Retispira leda Hall 1859
Retispira lyelli Gemmellaro 1889
Retispira makatikhae Jakowlew 1899
Retispira marcouianus Geinitz 1866
Retispira meekiana Shumard and Swallow 1858
Retispira modesta Girty 1909
Retispira monronensis Weller 1916
Retispira navicula Sowerby 1840
Retispira nodocostata Gurley 1884
Retispira nodulifera Hoare 1961
Retispira ornatus Weller 1920
Retispira otsego Hall 1859
Retispira perelegans White and Whitfield 1862
Retispira repertus Hall 1879
Retispira reticulata Elias 1958
Retispira reticulatus Tolmachoff 1930
Retispira retifera Talent 1963
Retispira rumpfi Kittl 1891
Retispira solignaci Termier and Termier 1977
Retispira suhaensis Kittl 1903
Retispira sullivani Blodgett 1992
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Invalid names: Retispira minuta Radabaugh 1942 [replaced]
Retispira tasselli Frýda 2000
Retispira textiliformis Gurley 1883
Retispira textilis Miller 1877
Retispira tumidus Sandberger and Sandberger 1853
Retispira undata Etheridge 1876
Invalid names: Retispira kansasensis Shumard 1858 [nomen nudum]
G. †Salpingostoma Roemer 1876
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Salpingostoma billingsi Wilson 1951
Salpingostoma boreale Whiteaves 1904
Salpingostoma buelli Whitfield 1878
Salpingostoma canadensis Billings 1866
Salpingostoma carnatum Ebbestad 1999
Salpingostoma carrolense Koken and Perner 1925
Salpingostoma compressum d'Eichwald 1840
Salpingostoma cristatum Koken and Perner 1925
Salpingostoma depressum Koken and Perner 1925
Salpingostoma expansa Hall 1847
Salpingostoma imbricata Ulrich and Scofield 1897
Salpingostoma inornatum Northrop 1939
Salpingostoma involutum Koken and Perner 1925
Salpingostoma kokeni Teichert 1932
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Invalid names: Salpingostoma dilatatum de Sowerby and Murchison 1839 [synonym]
Salpingostoma lata Foerste 1924
Salpingostoma locator d'Eichwald 1860
Salpingostoma macera Koken and Perner 1925
Salpingostoma megalostoma d'Eichwald 1840
Salpingostoma orientalis Twenhofel 1928
Salpingostoma richmondensis Ulrich and Scofield 1897
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Invalid names: Salpingostoma soperi Wilson 1931 [synonym]
Salpingostoma sculptilis Ulrich and Scofield 1897
Salpingostoma subtilistriatus Spriestersbach 1925
Salpingostoma terrilli Grabau 1922
Salpingostoma verrucosum Koken and Perner 1925
Salpingostoma zaddachi Koken and Perner 1925
G. †Sinuites Koken 1896
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Sinuites ammonoides Koken 1897
Sinuites anceps Reed 1921
Sinuites angulatus d'Eichwald 1840
Sinuites angustus Koken 1896
Sinuites bilobatus de Sowerby and Murchison 1839
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Invalid names: Sinuites gibbus Portlock 1843 [synonym]
Sinuites cancellatus Hall 1847
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Invalid names: Sinuites corrugatus Hall 1847 [synonym]
Sinuites corpulentus Koken and Perner 1925
Sinuites crypticus Reed 1906
Sinuites destombesi Horný 1997
Sinuites globularis Miller and Faber 1894
Sinuites gracilis Koken and Perner 1925
Sinuites granistriatus Ulrich and Scofield 1897
Sinuites minutus Emmons 1855
Sinuites nanus d'Eichwald 1842
Sinuites naviculoides Koken 1896
Sinuites niger Koken 1897
Sinuites nitens d'Eichwald 1860
Sinuites obesa Ulrich and Scofield 1897
Sinuites pervoluta Ulrich and Scofield 1897
Sinuites pusgillensis Reed 1921
Sinuites quadratus Koken and Perner 1925
Sinuites rectangularis Ulrich and Scofield 1897
Sinuites reticulatus Perner 1903
Sinuites rotundata Yü 1961
Sinuites rugulosus Koken 1897
Sinuites semirugosus Reed 1921
Sinuites soudleyensis Reed 1921
Sinuites sowerbyi Perner 1903
Sinuites subcompressa Ulrich and Scofield 1897
Sinuites usitatus Isakar 1991
Sinuites vetustus Koken 1897
G. †Sphenosphaera Knight 1945
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Sphenosphaera bilineatus Ulrich and Scofield 1897
Sphenosphaera burginensis Ulrich and Scofield 1897
Sphenosphaera capax Ulrich and Scofield 1897
Sphenosphaera consimilis Savage 1913
Sphenosphaera eiseni Lindström 1884
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Invalid names: Sphenosphaera exigua Foerste 1887 [synonym]
Sphenosphaera laurentinus Twenhofel 1928
Sphenosphaera mohri Miller 1874
Sphenosphaera nana Ulrich and Scofield 1897
Sphenosphaera opertus Foerste 1893
Sphenosphaera platystoma Meek and Worthen 1868
Sphenosphaera recurvus Ulrich and Scofield 1897
Sphenosphaera rogersensis Foerste 1914
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Invalid names: Sphenosphaera clausus Ulrich and Scofield 1897 [replaced]
Sphenosphaera similis Ulrich and Scofield 1897
Sphenosphaera subangularis Ulrich and Scofield 1897
Sphenosphaera subpatula Ulrich and Scofield 1897
Sphenosphaera troosti de Ferrusac and d'Orbigny 1840
G. †Strangulites Horný 1962
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Strangulites elongatus Portlock 1843
G. †Sylvestrosphaera Peel 1980
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G. †Tetranota Ulrich and Scofield 1897
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Tetranota bidorsata Hall 1847
Tetranota charon Billings 1860
Tetranota conspicua d'Eichwald 1840
Tetranota craigensis Reed 1921
Tetranota decurrens d'Eichwald 1860
Tetranota divergens Koken 1897
Tetranota hippopus Salter 1866
Tetranota jugata Koken 1896
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Invalid names: Tetranota obtusangula Koken 1897 [synonym]
Tetranota lineata Koken 1896
Tetranota macra Ulrich and Scofield 1897
Tetranota obsoleta Ulrich and Scofield 1897
Tetranota rugosa Emmons 1855
Tetranota sexcarinata Ulrich and Scofield 1897
Tetranota silurica d'Eichwald 1840
Tetranota undata Koken 1897
Tetranota wisconsinensis Whitfield 1878
G. †Tritonophon Öpik 1953
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Tritonophon carina Beushausen 1884
Tritonophon peeli Horný 1997
Tritonophon trilobatus de Sowerby and Murchison 1839
Tritonophon trimetra Öpik 1953
G. †Tropidodiscus Meek and Worthen 1866
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Tropidodiscus annularis Perner 1903
Tropidodiscus carnicus Spitz 1907
Tropidodiscus delanoui Oehlert and Oehlert 1888
Tropidodiscus geyeri Frech 1894
Tropidodiscus imitator Koken 1889
Tropidodiscus minimus Tschernischeff 1893
Tropidodiscus nakazatensis Kase and Nishida 1986
Tropidodiscus obex Clarke 1907
Tropidodiscus phoenix Heidelberger 2001
Tropidodiscus pragensis Horný 1963
Tropidodiscus rotula de Koninck 1883
G. †Undulabucania Wahlman 1992
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Undulabucania gorbyi Miller 1892
G. †Warthia Waagen 1880
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Warthia fissus Yochelson 1960
Warthia inflata Yin 1932
Warthia kingi Moore 1941
Warthia peregrinus Laube 1868
Warthia semiaurita Waagen 1880
Warthia waageni Yochelson 1960
Or. Patellogastropoda Lindberg 1986 [limpet]
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Superfm. Patelloidea Rafinesque 1815
G. †Archinacella Ulrich and Scofield 1897
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Archinacella alta Wahlman 1992
Archinacella approximans Koken and Perner 1925
Archinacella arca Wahlman 1992
Archinacella beloitensis Ulrich and Scofield 1897
Archinacella cingulata Ulrich and Scofield 1897
Archinacella clochensis Foerste 1914
Archinacella davisi Wahlman 1992
Archinacella deleta Sardeson 1892
Archinacella depressa Ulrich and Scofield 1897
Archinacella estella Billings 1865
Archinacella explanata Wilson 1951
Archinacella indianensis Miller 1892
Archinacella instabilis Billings 1865
Archinacella laevis Foerste 1924
Archinacella magna Flower 1968
Archinacella melissa Billings 1865
Archinacella norwegica Koken and Perner 1925
Archinacella perovalis Whitfield 1878
Archinacella pileolum Whitfield 1889
Archinacella pulaskiensis Foerste 1914
Archinacella rotunda Ulrich and Scofield 1897
Archinacella semicarinata Ulrich and Scofield 1897
Archinacella simplex Billings 1865
Archinacella simulatrix Ulrich and Scofield 1897
Archinacella stoermeri Yochelson 1963
Archinacella subcarinata Ulrich and Scofield 1897
Archinacella subrotunda Ulrich and Scofield 1897
Archinacella trentonensis Billings 1865
Archinacella valida Sardeson 1892
Archinacella wanwanensis Kobayashi 1933
G. †Floripatella Yochelson 1988
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Floripatella humilis Ulrich and Scofield 1897
Floripatella irregularis Raymond 1905
Floripatella orphyne Billings 1865
Floripatella quebecensis Billings 1865
Floripatella rousseaui Yochelson 1988
G. †Guelphinacella Peel 1990
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Guelphinacella canadense Whiteaves 1884
G. †Lepetopsis Whitfield 1882
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Lepetopsis chesterensis Worthen 1884
Lepetopsis levettei White 1882
G. †Metoptoma Phillips 1836
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Metoptoma alceste Billings 1865
Or. †Euomphalina de Koninck 1881
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Superfm. †Craspedostomatoidea Wenz 1938
Superfm. †Euomphaloidea White 1877
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Fm. †Anomphalidae Wenz 1938
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G. †Delphinuella Heidelberger 2001
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Delphinuella subarmata Sandberger and Sandberger 1854
G. †Diploconula Yochelson 1956
G. †Givediscus Heidelberger 2001
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Givediscus lahnicus Heidelberger 2001
G. †Littorella Heidelberger 2001
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Littorella subrugosa Sandberger and Sandberger 1854
G. †Nodinella Heidelberger 2001
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Nodinella dualia Heidelberger 2001
Nodinella sterrmannia Heidelberger 2001
Fm. †Elasmonematidae Knight 1956
G. †Kitikamispira Kase and Nishida 1988
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Kitikamispira bellense Tassell 1978
Kitikamispira bicostatus Roemer 1855
Kitikamispira crenulistriata Clarke and Swartz 1913
Kitikamispira granosus Sandberger 1842
Kitikamispira kanekoi Kase and Nishida 1988
Kitikamispira minuitinodosa Blodgett and Johnson 1992
Kitikamispira minutiforma Cook et al. 2003
Kitikamispira monroei Cleland 1911
Kitikamispira multistriata Clarke and Swartz 1913
Kitikamispira ormistoni Blodgett 1992
Kitikamispira perstrialis Fenton and Fenton 1924
Kitikamispira speciosum Whiteaves 1892
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Invalid names: Kitikamispira filicostata Spriestersbach 1942 [synonym]
Kitikamispira tubericosta Sandberger and Sandberger 1855
Fm. †Microdomatidae Wenz 1938
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G. †Amaurotoma Knight 1945
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Amaurotoma knighti Elias 1958
Amaurotoma subsinuata Meek and Worthen 1860
G. †Cyclites Knight 1940
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Cyclites depressus Beede 1907
Cyclites diminutus Kues and Batten 2001
Cyclites globosa Weller 1916
G. †Cyclobathmus Knight 1940
G. †Kinkaidia Thein and Nitecki 1974
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Kinkaidia cancellata Thein and Nitecki 1974
Kinkaidia triserrata Batten 1966
Kinkaidia uniserrata Batten 1966
G. †Knightinella Licharev 1975
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Knightinella humerosa Meek and Hayden 1858
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Invalid names: Knightinella subturbinata Meek and Hayden 1858 [synonym]
G. †Tunstallia Hollingworth and Barker 1991
G. †Neoplatyteichum Maxwell 1964
Fm. †Omphalocirridae Wenz 1938
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G. †Omphalocirrus de Ryckholt 1860
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Omphalocirrus beyeri Heidelberger 2001
Omphalocirrus carnicus Frech 1894
Omphalocirrus goldfussi d’Archiac and de Verneuil 1842
Omphalocirrus kaukensis Gubanov et al. 1995
Omphalocirrus kindlei Cleland 1911
Omphalocirrus manitobensis Whiteaves 1890
Omphalocirrus northi Etheridge 1890
Omphalocirrus pulcher Paeckelmann 1913
Omphalocirrus spinosus Sandberger and Sandberger 1854
Invalid names: Arctomphalus Tolmachoff 1930 [synonym], Hypomphalocirrus Linsley 1973 [synonym]
G. †Ornollus Heidelberger 2001
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Ornollus annulatus Phillips 1841
Ornollus decussatus Sandberger and Sandberger 1854
Fm. †Planitrochidae Knight 1956
G. †Rhenomphalus Bandel and Frýda 1998
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Rhenomphalus germanus Phillips 1841
G. †Serpulospira Cossmann 1915
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Serpulospira annulatus Phillips 1841
Serpulospira annulatus Whiteaves 1892
Serpulospira centrifuga Römer 1843
Serpulospira laxus Hall 1859
Serpulospira lituites Spitz 1907
Serpulospira militaris Whidborne 1892
Serpulospira minutilineatus Fagerstrom 1961
Serpulospira serpula d’Archiac and de Verneuil 1842
Serpulospira solutus Spitz 1907
Serpulospira swickae Blodgett and Johnson 1992
Fm. †Tychobraheidae Horný 1992
Invalid names: Omphalocirrinae Linsley 1973 [empty]
Superfm. †Oriostomatoidea Wenz 1938
Superfm. †Palaeotrochoidea Knight 1956
Superfm. †Platyceratoidea Hall 1859
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Fm. †Nerrhenidae Bandel and Heidelberger 2001
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G. †Hessonia Heidelberger 2001
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Hessonia germana Heidelberger 2001
Hessonia piligera Sandberger and Sandberger 1855
Hessonia priscus Whitfield 1893
G. †Nerrhena Heidelberger and Bandel 1999
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Nerrhena aequistriata Kirchner 1915
Nerrhena reticulata Heidelberger and Bandel 1999
Invalid names: Nerrhenoidea Bandel and Heidelberger 2001 [synonym]
Invalid names: Omphalotrochoidea Knight 1945 [empty]
G. †Anomphalus Meek and Worthen 1866
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Anomphalus blancus Kues and Batten 2001
Anomphalus rotulus Meek and Worthen 1867
G. †Bassotrochus Tassell 1978
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Bassotrochus angulatus Tassell 1978
Bassotrochus serpenteus Talent 1963
G. †Biformispira Rohr 1980
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G. †Boucotspira Rohr 1980
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Boucotspira carinifer Koken 1896
Boucotspira fimbriata Rohr 1980
Boucotspira lamellosus Lindström 1884
Boucotspira ordovicus Longstaff 1924
Boucotspira ozawai Kobayashi 1930
Boucotspira wisbyensis Lindström 1884
G. †Centrifugus Bronn 1835
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Centrifugus planorbis Bronn 1835
Centrifugus procera Perner 1907
G. †Ceratopea Ulrich 1911
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Ceratopea buttsi Yochelson and Bridge 1957
Ceratopea canadensis Billings 1865
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Invalid names: Ceratopea arabella Billings 1865 [synonym], Ceratopea calcifera Billings 1859 [synonym], Ceratopea macroconica Flower 1968 [synonym], Ceratopea praevium Whitfield 1889 [synonym], Pleurotomaria normani Billings 1865 [synonym]
Ceratopea compressum Whitfield 1886
Ceratopea depressa Butts 1926
Ceratopea grandis Butts 1926
Ceratopea hami Yochelson and Bridge 1957
Ceratopea harpya Billings 1865
Ceratopea inflata Cullison 1944
Ceratopea kawasakii Kobayashi 1930
Ceratopea latiumbilicata Poulsen 1927
Ceratopea lemonei Flower 1968
Ceratopea lenticularis Flower 1968
Ceratopea medfraensis Rohr and Blodgett 1988
Ceratopea miser Billings 1859
Ceratopea numeria Billings 1865
Ceratopea obtusa Cleland 1900
Ceratopea parvum Stauffer 1937
Ceratopea sculpta Cullison 1944
Ceratopea sinclairensis Kobayashi 1955
Ceratopea unguis Yochelson and Bridge 1957
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Invalid names: Eotomaria depressa Cullison 1944 [replaced]
Ceratopea vagrans Billings 1865
Invalid names: Roubidouxia Butts 1926 [synonym]
G. †Cyclonema Hall 1852
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Cyclonema aiens Sardeson 1896
Cyclonema ampullosum Perner 1903
Cyclonema ananas Perner 1903
Cyclonema bellulum Billings 1866
Cyclonema bilix Conrad 1842
Cyclonema boreale Poulsen 1974
Cyclonema canaliculata Angelin and Lindström 1880
Cyclonema cancellatum Angelin and Lindström 1880
Cyclonema cives Perner 1903
Cyclonema compar Perner 1903
Cyclonema composita Perner 1903
Cyclonema consepultum Perner 1903
Cyclonema convergens Perner 1903
Cyclonema crebristria M'Coy 1851
Cyclonema cushingi Ruedemann 1912
Cyclonema daytonensis Foerste 1899
Cyclonema decora Billings 1866
Cyclonema delicatula Lindström 1884
Cyclonema dowlingii Whiteaves 1906
Cyclonema filicinctus Whiteaves 1904
Cyclonema formosum Perner 1903
Cyclonema gracile Ulrich and Scofield 1897
Cyclonema gyronemoides Foerste 1923
Cyclonema hageri Billings 1865
Cyclonema hallianum Salter 1859
Cyclonema humerosum Ulrich and Scofield 1897
Cyclonema inaequistriatum Koken and Perner 1925
Cyclonema inflatum Ulrich and Scofield 1897
Cyclonema infrequens Perner 1907
Cyclonema inopinata Perner 1907
Cyclonema intermedium Bradley 1930
Cyclonema karlsteinensis Perner 1903
Cyclonema laudabile Perner 1903
Cyclonema lepidula Perner 1903
Cyclonema leptonotum Raymond 1905
Cyclonema limatum Ulrich and Scofield 1897
Cyclonema lineatum Koken 1897
Cyclonema margaritoides Whiteaves 1897
Cyclonema marylandense Prosser and Kindle 1913
Cyclonema mediale Ulrich and Scofield 1897
Cyclonema minuta Hall 1845
Cyclonema modestum Poulsen 1974
Cyclonema montrealense Billings 1865
Cyclonema niagarensis Winchell and Marcy 1866
Cyclonema nodulosum Lindström 1884
Cyclonema obsolescens Hall 1876
Cyclonema parvimedium McLearn 1924
Cyclonema percarinata Hall 1847
Cyclonema percingulatum Billings 1857
Cyclonema praecipitum Ulrich and Scofield 1897
Cyclonema rupestre d'Eichwald 1856
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Invalid names: Cyclonema sulcifera d'Eichwald 1856 [synonym]
Cyclonema servus Perner 1903
Cyclonema simulans Ulrich and Scofield 1897
Cyclonema sublaeve Ulrich and Scofield 1897
Cyclonema subundata Northrop 1939
Cyclonema sulphuriferum Perner 1903
Cyclonema textilis Miller 1897
Cyclonema thalia Billings 1857
Cyclonema timida Perner 1903
Cyclonema timidum Perner 1903
Cyclonema transversum Ulrich and Scofield 1897
Cyclonema trepidans Perner 1903
Cyclonema varians Billings 1857
Cyclonema varicosum Hall 1861
Cyclonema varispirum Twenhofel 1928
Cyclonema ventricosa Hall 1852
Invalid names: Cyclonemina Perner 1903 [synonym]
G. †Discordichilus Cossmann 1918
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Discordichilus aspersus Perner 1903
Discordichilus conus Kindle 1900
Discordichilus dalli Lindström 1884
Discordichilus harmonia Billings 1865
Discordichilus kolmodini Lindström 1884
Discordichilus mollis Lindström 1884
Discordichilus normalis Perner 1903
Discordichilus obesum Lindström 1884
Discordichilus venalis Perner 1903
Invalid names: Umbotrochus Perner 1903 [synonym]
G. †Ecculiomphalus Portlock 1843
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Ecculiomphalus bucklandi Portlock 1843
Ecculiomphalus compressus Whitfield 1897
Ecculiomphalus fredericus Raymond 1902
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Invalid names: Ecculiomphalus proclivis Raymond 1906 [synonym]
Ecculiomphalus minor Portlock 1843
Ecculiomphalus quebecensis Billings 1865
G. †Euomphalopsis Ulrich et al. 1931
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Euomphalopsis involuta Ulrich et al. 1931
Euomphalopsis magnus Rohr et al. 2002
G. †Fletcherviewia Cook 1993
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G. †Holopea Hall 1847
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Holopea ampullacea d'Eichwald 1860
Holopea antiquata Perner 1903
Holopea applanata Lindström 1884
Holopea appressa Ulrich and Scofield 1897
Holopea balticus Koken and Perner 1925
Holopea brucei Rohr 1980
Holopea concinna McCoy 1862
Holopea concinnula Ulrich and Scofield 1897
Holopea corrugata Twenhofel 1928
Holopea eichwaldi Koken 1897
Holopea elizabethi Rohr 1980
Holopea enjalrani Clarke 1907
Holopea excelsa Ulrich and Scofield 1897
Holopea expandens Perner 1907
Holopea filosus Koken and Perner 1925
Holopea gaspesia Clarke 1908
Holopea glindmeyeri Rohr 1980
Holopea harpa Angelin and Lindström 1880
Holopea inaequistriata Koken and Perner 1925
Holopea inflata Yü 1961
Holopea insignis Ulrich and Scofield 1897
Holopea lavinia Billings 1865
Holopea media Wilson 1951
Holopea mediocris Billings 1866
Holopea nicolettensis Foerste 1924
Holopea nitidissima Lindström 1884
Holopea obliqua Hall 1847
Holopea obsoleta Hall 1852
Holopea ottawaensis Wilson 1951
Holopea parvula Ulrich and Scofield 1897
Holopea perforata Lindström 1884
Holopea plauta Raymond 1906
Holopea praecursor Koken and Perner 1925
Holopea pyrene Billings 1865
Holopea rotunda Ulrich and Scofield 1897
Holopea scalariforme Lindström 1884
Holopea scrutator Raymond 1905
Holopea similis Ulrich and Scofield 1897
Holopea subtilis Ulrich and Scofield 1897
Holopea supraplana Ulrich and Scofield 1897
Holopea symmetrica Hall 1847
Holopea undulata Wilson 1932
Holopea vaurealensis Twenhofel 1928
G. †Hystricoceras Jahn 1894
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Hystricoceras astraliformis Lindström 1884
Hystricoceras hitchcocki Clarke 1907
Hystricoceras lundgreni Lindström 1884
G. †Isfarispira Gubanov et al. 1995
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Isfarispira septata Gubanov et al. 1995
G. †Kiaeromphalus Peel and Yochelson 1976
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Kiaeromphalus kristianiensis Peel and Yochelson 1976
Kiaeromphalus undiferus Schmidt 1858
G. †Lecanospira Butts 1926
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Lecanospira compacta Salter 1859
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Invalid names: Lecanospira knoxvillensis Allen and Lester 1954 [synonym], Lecanospira salteri Ulrich et al. 1931 [synonym], Lecanospira sigmoidea Ulrich et al. 1931 [synonym]
Lecanospira lecanospiroides Bridge and Cloud 1947
Lecanospira nerine Billings 1865
Lecanospira transitionis Billings 1865
Invalid names: Lecanospira tasmanensis Kobayashi 1940 [nomen oblitum]
G. †Linsleyella Rohr 1980
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Linsleyella greggi Rohr 1980
Linsleyella johnsoni Rohr 1980
Linsleyella spinosa Salter 1859
G. †Lophonema Purdue and Miser 1916
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Lophonema abrupta Billings 1859
Lophonema calphurnia Billings 1865
Lophonema circumlirata Whitfield 1886
Lophonema costata Kobayashi 1959
Lophonema peccatonica Sardeson 1896
Lophonema perstriata Billings 1859
Lophonema taneyensis Cullison 1944
Lophonema tricarinata Billings 1859
Lophonema wuhuensis Endo 1935
Invalid names: Polhemia Cullison 1944 [synonym]
G. †Lytospira Koken 1896
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Lytospira angelini Lindström 1884
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Invalid names: Lytospira huenei Koken and Perner 1925 [synonym]
Lytospira distans Billings 1865
Lytospira nitida Twenhofel 1928
Lytospira subrotunda Ulrich and Scofield 1897
Lytospira undulatus Hall 1861
Lytospira valida Koken 1897
G. †Macluritella Kirk 1927
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Macluritella carinifera Flower 1968
Macluritella gyroceras Roemer 1852
Macluritella imperfecta Flower 1968
Macluritella mediosulcata Kobayashi 1955
Macluritella ornata Lochman 1966
Macluritella peachi Murchison 1859
Macluritella rotunda Flower 1968
Macluritella sordida Hall 1847
Macluritella stantoni Kirk 1927
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Invalid names: Macluritella tympama Kobayashi 1955 [synonym]
Invalid names: Bridegeina Flower 1968 [synonym]
G. †Malayaspira Kobayashi 1958
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Malayaspira annulata Walcott 1884
Malayaspira bella Billings 1865
Malayaspira hintzei Rohr 1994
Malayaspira perkinsi Whitfield 1890
Malayaspira speciosa Billings 1865
G. †Mastigospira La Rocque 1949
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Mastigospira alata Whiteaves 1892
Mastigospira ingens La Rocque 1949
Mastigospira weberae Blodgett 1992
G. †Ophileta Vanuxem 1842
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Ophileta alturensis Sardeson 1896
Ophileta complanata Vanuxem 1842
Ophileta discus Cleland 1900
Ophileta polygyratus Roemer 1849
Ophileta rotuliformis Meek 1871
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Invalid names: Ozarkispira leo Walcott 1924 [synonym]
Ophileta solida Butts 1926
Ophileta supraplana Ulrich et al. 1931
G. †Ophiletina Ulrich and Scofield 1897
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Ophiletina angularis Ulrich and Scofield 1897
Ophiletina bromidensis Rohr and Johns 1990
Ophiletina fausta Sardeson 1896
Ophiletina sublaxa Ulrich and Scofield 1897
G. †Orecopia Knight 1945
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Orecopia circinatus Fenton and Fenton 1924
Orecopia cotei Pedder 1966
Orecopia kadzielniae Gürich 1896
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Invalid names: Orecopia grabinensis Karczewski 1989 [synonym]
Orecopia mccoyi Walcott 1884
Orecopia murrayi Tassell 1978
Orecopia priscum Schlotheim 1820
G. †Orospira Butts 1926
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Orospira bigranosa Butts 1926
G. †Pachystrophia Perner 1903
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Pachystrophia contiguus Ulrich and Scofield 1897
Pachystrophia devexa d'Eichwald 1859
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Invalid names: Pachystrophia dissoluta Koken and Perner 1925 [synonym]
Pachystrophia dilatata Perner 1903
Pachystrophia gotlandicus Lindström 1884
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Invalid names: Pachystrophia circinatus Whiteaves 1884 [synonym]
Pachystrophia inchoans Perner 1903
Pachystrophia inornatum Whiteaves 1884
Pachystrophia lescarboti Clarke 1908
Pachystrophia mullockensis Longstaff 1924
Pachystrophia orinini Wenjukov 1899
Pachystrophia subuloidea Perner 1903
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Invalid names: Pachystrophia rigida Perner 1907 [synonym]
Pachystrophia triquestra Lindström 1884
Pachystrophia tuba Lindström 1884
Pachystrophia vortex d'Eichwald 1856
G. †Phanerotinus Sowerby 1844
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Phanerotinus cristatus Phillips 1836
G. †Philoxene Kayser 1889
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Philoxene alacer Perner 1903
Philoxene argutus Fenton and Fenton 1924
Philoxene caementarius Blodgett and Johnson 1992
Philoxene cyclostomus Hall 1858
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Invalid names: Philoxene marylandicus Clarke and Swartz 1913 [synonym]
Philoxene laevis d’Archiac and de Verneuil 1842
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Invalid names: Philoxene serpens Phillips 1841 [synonym]
Philoxene mopsus Hall 1868
Philoxene mortoni Linsley and Yochelson 1973
Philoxene paveyi Foerste 1923
Philoxene perlongus Perner 1903
Philoxene perprofondus Perner 1903
Philoxene planiformis Heidelberger and Bandel 1999
Philoxene plicatulus Perner 1903
Philoxene praestans Perner 1903
Philoxene retrorsus Römer 1850
Philoxene sodalis Perner 1903
G. †Pleuronotus Hall 1879
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Pleuronotus confusus Perner 1903
Pleuronotus decewi Billings 1861
G. †Poleumita Clarke and Ruedemann 1903
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Poleumita alatum Lindström 1884
Poleumita anabarica Kurushin 1986
Poleumita crenulata Whiteaves 1884
Poleumita discors Sowerby 1814
Poleumita gyrans Lindström 1884
Poleumita haliburtoni McLearn 1924
Poleumita incarinatus Foerste 1893
Poleumita mashkovae Kurushin 1986
Poleumita myeri Goldfuss 1844
Poleumita octavia d'Orbigny 1850
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Invalid names: Poleumita carinata de Sowerby and Murchison 1839 [replaced]
Poleumita rugosa Sowerby 1814
Poleumita semiplanus Perner 1907
Poleumita subsulcatus Hisinger 1837
Poleumita walmstedti Lindström 1884
G. †Pseudophorus Meek 1873
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Pseudophorus antiquus Meek 1871
Pseudophorus carbonaria Meek and Worthen 1866
Pseudophorus cavus Lindström 1884
Pseudophorus excavata Perner 1903
Pseudophorus limbatus d’Archiac and de Verneuil 1842
Pseudophorus oxygonus Römer 1843
Pseudophorus profundus Lindström 1884
Pseudophorus stuxbergi Lindström 1884
G. †Pycnomphalus Lindström 1884
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Pycnomphalus acutus Lindström 1884
Pycnomphalus colemani Parks 1915
Pycnomphalus concurrens Perner 1903
Pycnomphalus helicites de Sowerby and Murchison 1839
Pycnomphalus immaturus Perner 1903
Pycnomphalus nummularius Perner 1903
Pycnomphalus obesus Lindström 1884
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Invalid names: Pycnomphalus solarioides Hall 1852 [synonym]
Pycnomphalus trochiformis Lindström 1884
G. †Raphistoma Hall 1847
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Raphistoma alaskensis Rohr et al. 1992
Raphistoma crevieri Billings 1859
Raphistoma debganensis Horný 1997
Raphistoma eucharis Billings 1865
Raphistoma gubanovi Rohr 1994
Raphistoma pelhamensis Butts 1926
Raphistoma striatum Emmons 1842
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Invalid names: Raphistoma docens Billings 1859 [synonym], Raphistoma immaturum Billings 1859 [synonym]
G. †Scalites Emmons 1842
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Scalites alatum Koken and Perner 1925
Scalites amanoi Kobayashi 1958
Scalites angulatus Emmons 1842
Scalites depressa Longstaff 1924
Scalites irregulare Kobayashi 1958
Scalites jonesi Kobayashi 1959
Scalites kanesi Kobayashi 1930
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Invalid names: Scalites yabei Kobayashi 1930 [synonym]
Scalites keizanensis Kobayashi 1934
Scalites oradovekaiae Vostokova 1964
Scalites peracutum Ulrich and Scofield 1897
Scalites richmondensis Ulrich and Scofield 1897
Scalites solitarius Endo 1935
Scalites tamurai Kobayashi 1930
Scalites tellerensis Rohr 1988
G. †Siluriphorus Cossmann 1918
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Siluriphorus antiqua Cresswell 1893
Siluriphorus fulminatus Lindström 1884
Siluriphorus gotlandicus Lindström 1884
Siluriphorus undulans Lindström 1884
G. †Sinutropis Perner 1903
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Sinutropis esthetica Perner 1903
Sinutropis interrumpens Perner 1903
Sinutropis spiralis Rohr 1988
Sinutropis tenera Perner 1903
G. †Spinicharybdis Rohr and Packard 1982
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Spinicharybdis billingsi Rohr and Packard 1982
Spinicharybdis canteriata Rohr and Packard 1982
Spinicharybdis elora Billings 1865
Spinicharybdis frenata Lindström 1884
Spinicharybdis gasconsensis Northrop 1939
Spinicharybdis wilsoni Rohr and Packard 1982
G. †Spirodentalium Walcott 1890
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Spirodentalium osceola Walcott 1890
Spirodentalium walcotti Howell 1946
G. †Streptotrochus Perner 1907
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Streptotrochus amicus Perner 1903
Streptotrochus cyclostoma Whiteaves 1884
Streptotrochus deciduus Williams and Breger 1916
Streptotrochus densestriatus Lindström 1884
Streptotrochus incisus Lindström 1884
Streptotrochus pressulus Tschernischeff 1885
Streptotrochus rugulosus Perner 1907
G. †Trochomphalus Koken and Perner 1925
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G. †Maclurites Le Sueur 1818
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Maclurites altus Wilson 1931
Maclurites atlanticus Billings 1859
Maclurites borealis Wilson 1938
Maclurites christianiae Koken and Perner 1925
Maclurites crassa Ulrich and Scofield 1897
Maclurites cuneata Whitfield 1878
Maclurites expansa Koken and Perner 1925
Maclurites florentinensis Banks and Johnson 1957
Maclurites gravis Vostokova 1964
Maclurites magnus Le Sueur 1818
Maclurites neritoides d'Eichwald 1860
Maclurites oceana Billings 1865
Maclurites ovalis Vostokova 1964
Maclurites profunda Butts 1926
Maclurites salteri Longstaff 1924
Maclurites subrotunda Whitfield 1878
Maclurites triangularis Teichert 1937
Maclurites ungava Wilson 1938
G. †Palliseria Wilson 1924
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Palliseria acuminata Billings 1865
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Invalid names: Maclurea rotundata Billings 1865 [synonym]
Palliseria crenulata Billings 1865
Palliseria robusta Wilson 1924
G. †Teiichispira Yochelson and Jones 1968
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Teiichispira affinis Billings 1865
Teiichispira auricula Rohr 1994
Teiichispira emmonsi Billings 1865
Teiichispira nanus Flower 1968
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Invalid names: Maclurites arnzeni Fix 1975 [synonym]
Teiichispira ponderosa Billings 1865
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Invalid names: Maclurites smithvillensis Fix 1975 [replaced]
Teiichispira similis Whitfield 1890
Teiichispira tofangoense Kobayashi 1930
Teiichispira zonata Kobayashi 1959
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Invalid names: Teiichispira kobayashi Yochelson and Jones 1968 [synonym]
G. †Agnesia de Koninck 1883
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Agnesia acuta Phillips 1836
Agnesia dentatolimata Sandberger and Sandberger 1855
Agnesia nodulosa Sandberger 1842
Agnesia prosseri Hyde 1953
Agnesia reticulata Yoo 1994
G. †Agniesella Cossmann 1909
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Agniesella aratula Perner 1907
Agniesella cancellata Phillips 1841
Agniesella chudleighensis Whidborne 1889
Agniesella wurmi Römer 1843
G. †Alaskiella Frýda and Blodgett 1998
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Alaskiella medfraensis Frýda and Blodgett 1998
G. †Antitrochus Whidborne 1891
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Antitrochus arietinus Whidborne 1891
Antitrochus moelleri Tschernischew 1885
G. †Apachella Winters 1956
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Apachella alamillano Girty 1909
Apachella boydi Kulas and Batten 1997
Apachella capertoni Beede 1907
Apachella franciscana Chronic 1952
Apachella sosiensis Gemmellaro 1889
Apachella texana Girty 1908
Apachella translirata Winters 1956
Apachella turbiniformis Winters 1963
G. †Arjamannia Peel 1975
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hide
Invalid names: Schizolopha prosseri Kindle 1903 [replaced]
Arjamannia bellicarinata Donald 1906
Arjamannia cancellatula Sedgwick and M'Coy 1855
Arjamannia inexpectans Hall and Whitfield 1875
Arjamannia pteronoides Longstaff 1924
Arjamannia thraivensis Longstaff 1924
Arjamannia woodlandi Longstaff 1924
G. †Arribazona Kues 1990
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Arribazona hesperita Kues 1990
G. †Astralites Whiteaves 1892
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Astralites fimbriatus Whiteaves 1892
Astralites gamblei Blodgett et al. 2003
Astralites muelleri Heidelberger 2001
Astralites sublimbatus d'Orbigny 1850
G. †Barrandecirrus Frýda 1997
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Barrandecirrus normalis Perner 1903
G. †Bellazona Gordon and Yochelson 1987
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Bellazona bella Walcott 1884
G. †Bembexia Oehlert and Oehlert 1888
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Bembexia adjutor Hall 1859
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Invalid names: Bembexia cancellata Stauffer 1909 [replaced]
Bembexia babini Blodgett et al. 1999
Bembexia chapernowni Whidborne 1892
Bembexia crenatostriata Sandberger and Sandberger 1855
Bembexia disjuncta Hall 1876
Bembexia gradilispira Linsley and Kesling 1982
Bembexia headillus Clarke 1909
Bembexia insolita Hall 1876
Bembexia laevis Ellison 1965
Bembexia larteti Munier-Chalmas 1876
Bembexia micula Tassell 1982
Bembexia minima Rowley 1895
Bembexia neapolitana Whidborne 1892
Bembexia seminuda Whidborne 1892
Bembexia tricinctus Römer 1843
Invalid names: Kersadiella Blodgett et al. 1999 [synonym]
G. †Beraunia Knight 1937
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Beraunia bifrons Perner 1903
Beraunia bohemica Perner 1903
Beraunia carens Perner 1903
Beraunia detersa Perner 1903
Beraunia docens Perner 1903
Beraunia elliptica Perner 1903
Beraunia indocilis Perner 1903
Beraunia placida Perner 1903
Beraunia querenda Perner 1903
Beraunia severa Perner 1903
Beraunia vellerosa Perner 1903
Beraunia verna Perner 1903
G. †Biangularia Spitz 1907
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Biangularia frechi Spitz 1907
G. †Borestus Thomas 1940
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Borestus costatus Yoo 1988
Borestus heterospira Gemmellaro 1889
Borestus wrighti Thomas 1940
G. †Brachytomaria Koken and Perner 1925
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Brachytomaria baltica Murchison et al. 1845
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Invalid names: Brachytomaria plicifera d'Eichwald 1860 [synonym]
Brachytomaria incisa Koken and Perner 1925
Brachytomaria kiari Koken and Perner 1925
Brachytomaria kindlei Foerste 1924
Brachytomaria mundula Ulrich and Scofield 1897
Brachytomaria papillosa Billings 1857
Brachytomaria plautini Koken and Perner 1925
Brachytomaria semele Hall 1861
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Invalid names: Brachytomaria notlingi Koken 1896 [synonym], Brachytomaria turbinata Koken and Perner 1925 [synonym]
Brachytomaria solida Koken and Perner 1925
Brachytomaria striata Ulrich and Scofield 1897
Brachytomaria turricula Billings 1857
G. †Brilonella Kayser 1873
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Brilonella serpens Kayser 1872
G. †Calaurops Whitfield 1886
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Calaurops canadensis Billings 1861
Calaurops lituiformis Whitfield 1886
G. †Catantostoma Sandberger 1842
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Catantostoma clathratum Sandberger 1842
G. †Cataschisma Branson 1909
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Cataschisma convexa Longstaff 1924
Cataschisma convexum Ulrich and Scofield 1897
Cataschisma exquisita Lindström 1884
Cataschisma latiangularis Branson 1909
Cataschisma microsoma Koken and Perner 1925
Cataschisma pillula Koken and Perner 1925
Cataschisma ulrichi Schuchert 1900
G. †Cerithioides Haughton 1859
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Cerithioides judiae Rollins 1975
Cerithioides oweni Donald 1895
Cerithioides telescopium Haughton 1859
G. †Chepultapecia Weller and St. Clair 1928
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Chepultapecia leiosomella Sardeson 1896
G. †Cibecuia Winters 1956
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Cibecuia cedarensis Winters 1956
Cibecuia gouldii Beede 1907
G. †Coelozone Perner 1907
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Coelozone hermannsteini Heidelberger 2001
Coelozone verna Perner 1907
Invalid names: Kobayashiconcha Frýda 1998 [synonym]
G. †Conotoma Perner 1907
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Conotoma aurora Blodgett and Johnson 1992
Conotoma bispiralis Hall 1852
Conotoma claustrata Lindström 1884
Conotoma eximia Perner 1907
Conotoma gradata Lindström 1884
Conotoma latezonata Lindström 1884
Conotoma nitella Hall 1860
Conotoma pugnus Perner 1907
G. †Copidocatomus Linsley 1968
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Copidocatomus collarus Linsley 1968
G. †Crassimarginata Jhaveri 1969
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G. †Crossoceras Boucot and Yochelson 1966
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Crossoceras belandi Boucot and Yochelson 1966
Crossoceras newberryi Hall 1860
G. †Daidia Wilson 1951
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Daidia cerithioides Salter 1859
Daidia peculiaris Wilson 1938
Daidia sewardensis Frýda et al. 2001
Daidia subconica Ulrich and Scofield 1897
Daidia wilsonae Frýda et al. 2001
G. †Decorospira Blodgett and Johnson 1992
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Decorospira gilberti Blodgett and Johnson 1992
Decorospira lepaini Frýda and Blodgett 2004
Decorospira minutula Frýda and Blodgett 2004
Decorospira nodosa Etheridge, Jr. 1898
Decorospira rigbyi Blodgett and Johnson 1992
Decorospira tasselli Blodgett and Johnson 1992
Decorospira tricinctus Roemer 1856
G. †Denayella Blodgett and Johnson 1992
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Denayella bella Tyler 1965
Denayella conoidea Tassell 1982
Denayella housei Blodgett and Johnson 1992
Denayella lomandraensis Cook and Camilleri 1997
Denayella rotalia Hall 1862
G. †Dirachis Whidborne 1891
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Dirachis atavus Whidborne 1891
G. †Donaldiella Cossmann 1903
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Donaldiella catharina Billings 1865
Donaldiella cicelia Billings 1865
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Invalid names: Donaldiella angulocincta Murchison 1859 [synonym], Donaldiella norvegica Holtedahl 1915 [synonym], Donaldiella sakamotoi Kobayashi 1930 [synonym], Donaldiella similior Endo 1935 [synonym], Lophospira pagodai Endo 1932 [synonym], Lophospira pagodai Endo 1932 [synonym]
Donaldiella derwiduii Grabau 1922
Donaldiella dorothea Grabau 1922
Donaldiella filosa Donald 1902
Donaldiella pagodai Endo 1932
Donaldiella tetracarina Kobayashi 1930
G. †Dongiovannia Horný 1992
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Dongiovannia pragensis Horný 1992
G. †Dutrochus Blodgett 1993
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Dutrochus alaskensis Blodgett 1993
G. †Echinocirrus de Ryckholt 1860
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Echinocirrus ornatissima de Koninck 1844
G. †Eirlysia Batten 1956
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Eirlysia exquisita Batten 1956
Eirlysia reticulata Batten 1958
Eirlysia spiralis Dietz 1911
G. †Elasmonema Fischer 1885
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Elasmonema amabile Perner 1903
Elasmonema bellatula Hall 1861
Elasmonema clarki Nettelroth 1889
Elasmonema corrugata Stauffer 1909
Elasmonema elegans Hall 1860
Elasmonema filosum Clarke 1904
Elasmonema gracilis Tolmachoff 1930
Elasmonema hermitei Munier-Chalmas 1876
Elasmonema imitator Hall and Whitfield 1872
Elasmonema improbum Perner 1907
Elasmonema lichas Hall 1861
Elasmonema surgens Perner 1903
G. †Eotomaria Ulrich and Scofield 1897
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Eotomaria canalifera Ulrich and Scofield 1897
Eotomaria dalecarlica Koken 1897
Eotomaria dryope Billings 1865
Eotomaria kjerulfi Koken and Perner 1925
Eotomaria labiosa Ulrich and Scofield 1897
Eotomaria notabilis d'Eichwald 1840
Eotomaria perryi Rohr 1980
Eotomaria tumida Koken and Perner 1925
G. †Eotrochus Whitfield 1882
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Eotrochus marigoldensis Thein and Nitecki 1974
G. †Epiptychia Perner 1907
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Epiptychia potens Perner 1903
G. †Eucochlis Knight 1933
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Eucochlis australis Yoo 1988
Eucochlis depressa Yoo 1994
Eucochlis perminuta Knight 1933
G. †Euconia Ulrich and Scofield 1897
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Euconia conicus Heller 1954
Euconia etna Billings 1865
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Invalid names: Euconia beekmanensis Whitfield 1889 [synonym], Euconia thule Murchison 1859 [synonym]
Euconia sinuata Flower 1968
Euconia umbilicata Dake and Bridge 1932
G. †Euconospira Ulrich and Scofield 1897
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Euconospira conica Phillips 1836
Euconospira conimorpha de Koninck 1883
Euconospira conula Hall 1856
Euconospira disjuncta Girty 1910
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Invalid names: Euconospira shumardi Meek and Worthen 1860 [synonym]
Euconospira elongata Grabau 1931
Euconospira equisita Hoare et al. 1997
Euconospira hermosana Girty 1934
Euconospira neptuni Münster 1840
Euconospira nodosa Cook et al. 2003
Euconospira perlimbata Grabau 1931
Euconospira planoconvexa Grabau 1931
Euconospira sturgeoni Thein and Nitecki 1974
Euconospira trochiformis Longstaff 1912
Euconospira turbiniformis Meek and Worthen 1860
Euconospira varizona Batten 1958
G. †Euryzone Koken 1896
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Euryzone arata Hall 1862
Euryzone basalestriatus Kirchner 1915
Euryzone calva Perner 1907
Euryzone clausa Hall 1879
Euryzone deformata Perner 1907
Euryzone delphinuloides von Schlotheim 1820
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Invalid names: Euryzone crokeri Whidborne 1892 [synonym]
Euryzone hullensis Cook et al. 2003
Euryzone intermedia Tolmachoff 1930
Euryzone itys Hall 1876
Euryzone kayseri Koken 1889
Euryzone kielcensis Gürich 1896
Euryzone laevis Roemer 1855
Euryzone latevittata Koken 1889
Euryzone latitornata Linsley 1968
Euryzone naticaeformis Sandberger and Sandberger 1853
Euryzone patula Koken and Perner 1925
Euryzone pharkidopyndax Linsley 1968
Euryzone planiformis Heidelberger 2001
Euryzone roemeri Koken 1889
Euryzone sublaevis Römer 1843
Euryzone tenuispira Hall 1879
G. †Floyda Webster 1905
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Floyda concentrica Webster 1905
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Invalid names: Floyda gigantea Hall and Whitfield 1873 [replaced]
Floyda obliqua Spriesterbach 1919
G. †Gasconadia Weller and St. Clair 1928
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Gasconadia floridensis Cleland 1900
Gasconadia mohawkensis Cleland 1900
Gasconadia putilla Sardeson 1896
G. †Globonema Wenz 1938
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Globonema arctatum Ulrich and Scofield 1897
Globonema carinata Angelin and Lindström 1880
Globonema fatua Hall 1868
Globonema fraternum Perner 1903
Globonema kaysi Rohr et al. 1981
Globonema kokeni Wenz 1938
Globonema lyelli Perner 1903
Globonema muricatum Lindström 1884
Globonema niota Hall 1861
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Invalid names: Globonema obsoletum Ulrich and Scofield 1897 [synonym], Globonema robbinsi Ulrich and Scofield 1897 [synonym], Globonema salteri Ulrich and Scofield 1897 [replaced]
Globonema pauperum Perner 1903
Globonema peregrinum Perner 1903
Globonema piersalense Koken 1897
Globonema simile Ulrich and Scofield 1897
Globonema turritum Lindström 1884
G. †Glyphodeta Donald 1895
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G. †Goniasma Tomlin 1930
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Goniasma dalryensis Donald 1895
Goniasma fischeri Stuckenberg 1905
Goniasma helicaformis Sayre 1930
Goniasma lasallense Worthen 1890
Goniasma terebra White 1879
G. †Gosseletina Fischer 1885
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Gosseletina aspeniana Girty 1927
Gosseletina australis Etheridge 1917
Gosseletina idahoensis Girty 1910
Gosseletina isomorpha Gemmellaro 1889
Gosseletina johnsoni Thein and Nitecki 1974
Gosseletina nodosa Batten 1966
Gosseletina permiana Batten 1989
Gosseletina pratteni Meek and Worthen 1860
Gosseletina subglobosa Miller 1877
G. †Hammatospira Gordon and Yochelson 1983
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Hammatospira bellula Gordon and Yochelson 1983
G. †Haplospira Koken 1897
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Haplospira henningsmoeni Yochelson 1963
Haplospira nereis Billings 1865
Haplospira variabilis Koken 1897
Haplospira vermiculosa Perner 1903
G. †Helicotoma Salter 1859
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Helicotoma blodgetti Rohr 1988
Helicotoma gorgonea Billings 1865
Helicotoma granosa Ulrich and Scofield 1897
Helicotoma marginata Ulrich and Scofield 1897
Helicotoma miser Billings 1865
Helicotoma planulata Salter 1859
Helicotoma robinsoni Rohr 1988
Helicotoma superba Koken 1897
Helicotoma tennesseensis Safford 1869
Helicotoma whiteavesiana Raymond 1908
G. †Hesperiella Holzapfel 1889
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Hesperiella canningensis Cook et al. 2003
Hesperiella ebbighauseni Bandel 1993
Hesperiella lahniensis Heidelberger 2001
Hesperiella thomsoni de Koninck 1883
G. †Horiostomella Perner 1903
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Horiostomella otiosa Perner 1903
Subg. †Hormotoma Salter 1859
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Hormotoma minnesotensis Ulrich and Scofield 1897
G. †Horologium Perner 1907
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Horologium kokeni Perner 1907
G. †Isonema Meek and Worthen 1866
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Isonema linearis Keyes 1889
Isonema verae Frech 1894
G. †Lamellospira Batten 1958
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Lamellospira alveozona Kulas and Batten 1997
G. †Latitaenia Koken and Perner 1925
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Latitaenia kirnaensis Koken and Perner 1925
Latitaenia rotelloidea Koken 1896
Latitaenia thulensis Koken 1896
G. †Leptozone Perner 1907
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Leptozone esthetica Perner 1907
G. †Liospira Ulrich and Scofield 1897
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Liospira americana Billings 1860
Liospira angustata Ulrich and Scofield 1897
Liospira biconvexa Yü 1961
Liospira cornovica Pitcher 1939
Liospira decipens Ulrich and Scofield 1897
Liospira lenticularis de Sowerby and Murchison 1839
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Invalid names: Liospira marklandensis McLearn 1924 [synonym]
Liospira micula Hall and Whitney 1862
Liospira modesta Ulrich and Scofield 1897
Liospira peneplana Okulitch 1935
Liospira perdepressa Poulsen 1974
Liospira progne Billings 1860
Liospira robertsi Reed 1906
Liospira rossica Koken 1889
Liospira taihakuensis Kobayashi 1934
Liospira uriconiensis Pitcher 1939
Liospira wesenbergense Koken 1897
G. †Littorinides Knight 1937
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Littorinides sextalineatus Sandberger 1842
Littorinides subclathratus Sandberger 1842
G. †Lodanaria Dahmer 1925
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Lodanaria ecclesiae Clarke and Swartz 1913
Lodanaria floryi Blodgett and Johnson 1992
Lodanaria munda Dahmer 1925
Lodanaria quadricarinata Stauffer 1909
G. †Longstaffia Cossmann 1908
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Invalid names: Longstaffia angulata Pitcher 1939 [synonym], Longstaffia multicarinata Pitcher 1939 [synonym]
Longstaffia complexa Perner 1903
Longstaffia cyclonema Salter 1873
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Invalid names: Longstaffia corpulenta Sollas 1879 [synonym]
Longstaffia grata Perner 1903
Longstaffia groomii Donald 1905
Longstaffia laqueata Lindström 1884
Longstaffia pulchra M'Coy 1844
Longstaffia teretiuscula Perner 1907
Longstaffia tubulosa Lindström 1884
Longstaffia uniformis Cowper Reed 1901
G. †Lophospira Whitfield 1886
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Lophospira alata Koken and Perner 1925
Lophospira alternans Koken and Perner 1925
Lophospira bilirata Hall 1860
Lophospira billingsi Raymond 1905
Lophospira concurrens Perner 1907
Lophospira ferruginea Donald 1906
Lophospira gyrogonia M'Coy 1851
Lophospira infausta Perner 1903
Lophospira jaekeli Koken and Perner 1925
Lophospira kinosakii Kobayashi 1934
Lophospira kuckersiana Teichert 1932
Lophospira lyckholmiensis Teichert 1932
Lophospira mickwitzi Koken 1896
Lophospira milleri Miller 1877
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Invalid names: Eunema ventricosa Yü 1961 [synonym], Lophospira aspera Billings 1859 [synonym], Lophospira bicincta Hall 1847 [synonym], Lophospira compressa Endo 1935 [synonym], Lophospira curvistriata Koken and Perner 1925 [synonym], Lophospira excavata Donald 1906 [synonym], Lophospira initialis Koken 1897 [synonym], Lophospira kentlandensis Shrock and Raasch 1937 [synonym], Lophospira medialis Ulrich and Scofield 1897 [synonym], Lophospira minuta Wilson 1938 [synonym], Lophospira perfecta Koken and Perner 1925 [synonym], Lophospira procera Ulrich and Scofield 1897 [synonym], Lophospira seelyi Raymond 1908 [synonym], Lophospira tienshanensis Yü 1961 [synonym]
Lophospira modesta Billings 1857
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Invalid names: Lophospira hermione Billings 1865 [synonym]
Lophospira obliqua Ulrich and Scofield 1897
Lophospira ozakii Endo 1935
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Invalid names: Lophospira abbreviata Hall 1847 [replaced], Lophospira acuminata Ulrich and Scofield 1897 [synonym], Lophospira acuta Grabau 1922 [synonym], Lophospira angulata Butts 1926 [synonym], Lophospira aojii Endo 1932 [synonym], Lophospira borealis Donald 1902 [synonym], Lophospira elegans Endo 1935 [synonym], Lophospira elongata Butts 1926 [synonym], Lophospira endoi Kobayashi 1934 [synonym], Lophospira gerardi Grabau 1922 [synonym], Lophospira inconsueta Endo 1935 [synonym], Lophospira minuata Endo 1935 [synonym], Lophospira obliquestriata Longstaff 1924 [synonym], Lophospira perelegans Stauffer 1937 [synonym], Lophospira perforata Ulrich and Scofield 1897 [synonym], Lophospira pulchella Ulrich and Scofield 1897 [synonym], Lophospira pulchelliformis Grabau 1922 [synonym], Lophospira sinensis Yü 1961 [synonym], Lophospira sororcula Billings 1865 [synonym], Lophospira subcylindrica Yü 1961 [synonym], Lophospira subpulchella Kobayashi 1930 [synonym], Lophospira tateiwai Kobayashi 1934 [synonym], Lophospira tenuise Endo 1935 [synonym], Lophospira tricarinata Hall 1847 [synonym], Lophospira trilineata Secrist and Evitt 1943 [synonym], Lophospira turritiformis Endo 1932 [synonym], Lophospira vetusta Stauffer 1937 [synonym], Lophospira yentaiensis Endo 1932 [synonym]
Lophospira rectistriata Raymond 1908
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Invalid names: Lophospira bantatsuense Kobayashi 1930 [synonym], Lophospira manchuriensis Endo 1932 [synonym], Lophospira morrisi Grabau 1922 [synonym], Lophospira subabbreviata Raymond 1908 [synonym], Lophospira yabei Endo 1935 [synonym]
Lophospira selecta Billings 1865
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Invalid names: Lophospira grabaui Endo 1932 [synonym], Lophospira kangyaoensis Endo 1932 [synonym], Lophospira kodairai Kobayashi 1930 [synonym], Lophospira konnoi Kobayashi 1930 [synonym], Lophospira trochiformis Grabau 1922 [synonym], Lophospira trochoformis Butts 1926 [synonym]
Lophospira serrulata Salter 1859
Lophospira shallockensis Longstaff 1924
Lophospira spironema Ulrich and Scofield 1897
Lophospira subalata Koken and Perner 1925
Lophospira subglobosa Donald 1906
Lophospira terrassa Grabau 1922
Lophospira tesakovi Kurushin 1986
Lophospira trispiralis Donald 1906
Lophospira variablis Donald 1902
Lophospira ventricosa Hall 1847
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Invalid names: Lophospira conradana Ulrich and Scofield 1897 [synonym]
Invalid names: Lophospira angulata de Sowerby and Murchison 1839 [nomen vanum], Lophospira depauperata Hall and Whitney 1862 [nomen vanum]
G. †Loxoplocus Fischer 1885
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Loxoplocus gothlandicus Ulrich and Scofield 1897
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Invalid names: Loxoplocus bijugosus Reed 1901 [synonym], Loxoplocus bucheri Foerste 1923 [synonym], Loxoplocus ehlersi Foerste 1923 [synonym], Loxoplocus guelphicus Whiteaves 1906 [synonym], Loxoplocus hespelerensis Whiteaves 1884 [synonym], Loxoplocus infidelis Perner 1903 [synonym], Loxoplocus luomianensis Xi and Yu 1990 [synonym], Loxoplocus rarissimus Perner 1903 [synonym], Loxoplocus vostokovae Kurushin 1986 [synonym]
Loxoplocus hyacinthensis Foerste 1924
Loxoplocus nelsonae Peel 1975
Loxoplocus sedgwicki Donald 1906
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Invalid names: Loxoplocus esthona Koken and Perner 1925 [synonym], Loxoplocus trilineata Pitcher 1939 [synonym], Loxoplocus turbinoides Koken and Perner 1925 [synonym]
Loxoplocus silurica d'Eichwald 1840
Loxoplocus soluta Whiteaves 1884
Loxoplocus vermetus Koken 1897
Invalid names: Eoworthenia Frýda 1998 [synonym], Kiviasukkaan Peel 1975 [synonym]
G. †Luciella de Koninck 1883
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Luciella alata Sandberger and Sandberger 1855
Luciella eliana de Koninck 1844
Luciella praecursor Perner 1907
G. †Luciellina Kittl 1900
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Luciellina ocultabanda Kues and Batten 2001
Luciellina squamula Phillips 1836
G. †Lunulazona Sadlick and Nielsen 1963
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Lunulazona costata Sadlick and Nielsen 1963
Lunulazona nodomarginata McChesney 1861
Lunulazona sablei Yochelson and Dutro 1963
Lunulazona springeri Lane et al. 1973
G. †Manzanospira Batten 1989
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G. †Marmolatella Kittl 1894
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Marmolatella ambiguus Weir 1925
Marmolatella ampliata Phillips 1836
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Invalid names: Marmolatella spirata de Sowerby and Murchison 1839 [synonym]
Marmolatella sigaretiformis de Koninck 1881
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Invalid names: Marmolatella ermani Murchison et al. 1845 [synonym]
Marmolatella subovata Meek and Worthen 1873
G. †Meandrella Perner 1903
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Meandrella sculpta Perner 1903
G. †Mesocoelia Perner 1907
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Mesocoelia delicata Perner 1907
Mesocoelia discrepans Perner 1907
Mesocoelia gregaria Ruedemann 1916
Mesocoelia iners Perner 1907
Mesocoelia janus Perner 1907
Mesocoelia libera Perner 1907
Mesocoelia obstipisutura Linsley 1968
Mesocoelia priscum Münster 1840
Mesocoelia quarki Tassell 1982
Mesocoelia suspecta Perner 1907
Mesocoelia terebrans Perner 1907
G. †Michelia Roemer 1855
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Michelia compacta Hall 1859
Michelia cylindrica Roemer 1855
Michelia darwini de Koninck 1876
Michelia planogyrata Hall 1859
Michelia tenera Perner 1907
Michelia tenue Clarke 1907
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Invalid names: Michelia tenuella Williams and Breger 1916 [synonym]
Michelia whiteavesi Clarke and Ruedemann 1903
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Invalid names: Michelia attenuata Lindström 1884 [replaced]
G. †Micrentoma Donald 1898
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Micrentoma nana de Koninck 1881
Micrentoma yunnanensis Mansuy 1919
G. †Microdoma Meek and Worthen 1867
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Microdoma angulata Yoo 1988
Microdoma tricarinatus Sherzer and Grabau 1910
G. †Mourlonia de Koninck 1883
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Mourlonia agassizi de Koninck 1883
Mourlonia broondensis Tolmachoff 1930
Mourlonia broondensis Tolmachoff 1930
Mourlonia carinata Sowerby 1813
Mourlonia filitexta Hall 1876
Mourlonia globosa Holzapfel 1882
Mourlonia guestphalica Koken 1889
Mourlonia italica Spitz 1907
Mourlonia macrostoma Sandberger and Sandberger 1853
Mourlonia missouriensis Weller 1906
Mourlonia nigra Koken 1889
Mourlonia pisa de Koninck 1883
Mourlonia plena Hall 1876
Mourlonia reloba Yochelson and Dutro 1960
Mourlonia rugulata Hall 1860
Mourlonia striata Sowerby 1815
Mourlonia subzona Rollins et al. 1971
Mourlonia teichertensis Cook et al. 2003
Mourlonia tenuiarata Sandberger and Sandberger 1853
Mourlonia tenuilineata Holzapfel 1882
Mourlonia textus Hyde 1953
Mourlonia turbinea Sandberger and Sandberger 1855
Mourlonia vicinalis Koken 1889
G. †Naticonema Perner 1903
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Naticonema kauffmani Peel 1975
Naticonema similare Perner 1903
G. †Naticopsis M'Coy 1844
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Naticopsis ableptis Batten 1974
Naticopsis americana Girty 1915
Naticopsis apollinis Perner 1907
Naticopsis bowsheri Blodgett 1992
Naticopsis carleyana Hall 1856
Naticopsis carlyana Hall 1856
Naticopsis chesterensis Swallow 1863
Naticopsis comperta Hall 1879
Naticopsis confusa Perner 1903
Naticopsis consobrina Perner 1903
Naticopsis convoluta Heidelberger 2001
Naticopsis cretacea Hall and Whitfield 1873
Naticopsis deformis Girty 1909
Naticopsis depressa Winchell 1863
Naticopsis efossa Goldfuss 1844
Naticopsis errans Perner 1903
Naticopsis eruca Perner 1907
Naticopsis hallii Whidborne 1892
Naticopsis inflata Römer 1843
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Invalid names: Naticopsis adorfensis Holzapfel 1882 [synonym]
Naticopsis inornata Whiteaves 1892
Naticopsis inornata Walcott 1884
Naticopsis insculpta Perner 1903
Naticopsis irregularis Perner 1903
Naticopsis judithae Knight 1933
Naticopsis kaibabensis Chronic 1952
Naticopsis kayseri Holzapfel 1895
Naticopsis laeta Perner 1903
Naticopsis levis Meek 1873
Naticopsis manitobensis Whiteaves 1892
Naticopsis marginata Römer 1843
Naticopsis mariona Thein and Nitecki 1974
Naticopsis marthaae Knight 1933
Naticopsis microtricha Römer 1843
Naticopsis minuta Tolmachoff 1930
Naticopsis naticaeformis Karczewski 1989
Naticopsis nexicosta Phillips 1841
Naticopsis opimavoluta Linsley 1968
Naticopsis osbornei Yoo 1988
Naticopsis pegmihumerosa Linsley 1968
Naticopsis phillipsi M'Coy 1844
Naticopsis planifrons Linsley 1968
Naticopsis plebeia Perner 1903
Naticopsis plena Perner 1903
Naticopsis plicatula Perner 1903
Naticopsis primigenia d'Eichwald 1859
Naticopsis protei Goldfuss 1844
Naticopsis protogaea Goldfuss 1844
Naticopsis purpura Römer 1850
Naticopsis remex White 1876
Naticopsis ruchholzi Gischler et al. 2004
Naticopsis scintilla Girty 1915
Naticopsis semistriata Münster 1840
Naticopsis sirodoti Munier-Chalmas 1876
Naticopsis suturicompta Yochelson and Dutro 1960
Naticopsis taemasensis Tassell 1982
Naticopsis tumescens Perner 1903
Naticopsis velox Perner 1903
Naticopsis waageni Gemmellaro 1889
Naticopsis wakehami Clarke 1908
Naticopsis waterlooensis Weller 1916
Naticopsis wortheniana Knight 1934
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Invalid names: Naticopsis wortheni Knight 1933 [replaced]
G. †Neilsonia Thomas 1940
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Neilsonia insculpta Hall 1856
Neilsonia invisitata Hoare et al. 1997
Neilsonia laticincta Batten 1989
Neilsonia welleri Thein and Nitecki 1974
G. †Nodonema Linsley 1968
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Nodonema clathratulum Whiteaves 1892
Nodonema granulatum Linsley 1968
G. †Nodospira Yochelson and Dutro 1960
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Nodospira ornata Yochelson and Dutro 1960
G. †Orthonychia Hall 1843
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Orthonychia aculeata Barrois 1889
Orthonychia acuta Roemer 1856
Orthonychia baldwini Rohr et al. 1981
Orthonychia belli Clarke 1908
Orthonychia bowsheri Yochelson 1956
Orthonychia campanulata Barrois 1889
Orthonychia chesterense Meek and Worthen 1867
Orthonychia concavum Hall 1859
Orthonychia conicum Hall 1859
Orthonychia conoidea Goldfuss 1844
Orthonychia cornuforme Winchell 1863
Orthonychia costata Barrois 1889
Orthonychia daschi Rohr and Smith 1978
Orthonychia dentalium Hall 1862
Orthonychia dubium Barrois 1889
Orthonychia egorovi Mazaev 1996
Orthonychia enorme Lindström 1884
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Invalid names: Platyceras cyathinum Lindström 1884 [synonym]
Orthonychia extensum Barrois 1889
Orthonychia herzeri Winchell 1871
Orthonychia marblecreekensis Talent and Philip 1956
Orthonychia parva Shumard and Swallow 1858
Orthonychia parvulum Whiteaves 1892
Orthonychia pentalvea Talent and Philip 1956
Orthonychia perplexum Hall 1879
Orthonychia prosseri Clarke and Swartz 1913
Orthonychia protei Oehlert 1883
Orthonychia puellaris Whidborne 1891
Orthonychia quadrangularis Whidborne 1891
Orthonychia rostratus Trenkner 1868
Orthonychia rotunda Whidborne 1896
Orthonychia sileni Oehlert 1883
Orthonychia spinigerum Worthen 1883
Orthonychia subrectum Hall 1859
Orthonychia tortuosa Hall 1859
Orthonychia trigonale Barrois 1889
Orthonychia trirotundolobatum Talent and Philip 1956
Orthonychia undulatum Barrois 1889
Orthonychia unguiculata Clarke and Swartz 1913
Orthonychia variablis Tyler 1965
G. †Ostioma Tassell 1980
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Ostioma albanica Tassell 1980
Ostioma bloomfieldia Tassell 1980
G. †Ozarkispira Walcott 1924
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Ozarkispira subelevata Butts 1940
G. †Pagodina Wanner 1942
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Pagodina arcticiformis Wanner 1922
G. †Palaeotrochus Hall 1879
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Palaeotrochus kearnyi Hall 1861
G. †Paragoniozona Nelson 1947
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Paragoniozona granulostriata Meek and Worthen 1860
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Invalid names: Pleurotomaria aspera Girty 1934 [replaced]
Paragoniozona nodolirata Nelson 1947
G. †Paraliospira Rohr 1980
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Paraliospira eugenia Billings 1865
Paraliospira gradata Rohr 1980
Paraliospira helena Billings 1860
Paraliospira larvata Salter 1859
Paraliospira mundula Ulrich and Scofield 1897
Paraliospira parva Wilson 1938
Paraliospira planata Rohr 1980
Paraliospira rugata Ulrich and Scofield 1897
Paraliospira rupestris Koken and Perner 1925
Paraliospira supracingulata Billings 1857
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Invalid names: Eotomaria plana Wilson 1951 [synonym]
G. †Pernericirrus Frýda 1997
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Pernericirrus aberrans Koken 1889
Pernericirrus sinistorus Perner 1907
G. †Phanerotrema Fischer 1885
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Phanerotrema australis Etheridge 1891
Phanerotrema axion Hall 1868
Phanerotrema balteata Phillips 1841
Phanerotrema cailliaudi Barrois 1889
Phanerotrema calliaudi Barrois 1889
Phanerotrema communis Billings 1866
Phanerotrema consimilis Perner 1907
Phanerotrema dolium Lindström 1884
Phanerotrema grimburgi Frech 1894
Phanerotrema jugosum Huxley and Etheridge 1865
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Invalid names: Phanerotrema mcoyi Longstaff 1924 [synonym]
Phanerotrema labrosa Hall 1859
Phanerotrema lindstroemi Boucot et al. 1967
Phanerotrema occidens Hall 1867
Phanerotrema perryi Rohr and Smith 1978
G. †Phymatopleura Girty 1939
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Phymatopleura baccata Reed 1944
Phymatopleura nodosa Girty 1912
Phymatopleura preclara Hoare et al. 1997
Phymatopleura thyrrena Gemmellaro 1889
G. †Plagiothyra Whidborne 1892
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Plagiothyra archon Whidborne 1889
Plagiothyra arietinus Whidborne 1892
Plagiothyra isekei Heidelberger and Amler 2002
Plagiothyra nobilis Holzapfel 1882
Plagiothyra purpurea d’Archiac and de Verneuil 1842
G. †Planozone Perner 1907
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Planozone ramificans Perner 1907
G. †Platyceras Conrad 1840
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Platyceras ammon Hall 1862
Platyceras angustum Phillips 1836
Platyceras argo Hall 1862
Platyceras attenuatum Hall 1859
Platyceras billingsi Hall 1859
Platyceras bistrami Knod 1908
Platyceras callossum Hall 1859
Platyceras canalicatum Angelin and Lindström 1880
Platyceras carinatum Hall 1862
Platyceras colonus Holzapfel 1895
Platyceras columbinus Whidborne 1889
Platyceras compressus Goldfuss 1832
Platyceras contortus Römer 1843
Platyceras cordatus Whidborne 1889
Platyceras crassum Hall 1862
Platyceras cymbium Hall 1862
Platyceras decorum Talent and Philip 1956
Platyceras dilatans Perner 1911
Platyceras dilatatum Hall 1859
Platyceras dormitans Maurer 1885
Platyceras eberti Holzapfel 1895
Platyceras echinatum Hall 1862
Platyceras elongatum Hall 1859
Platyceras erectum Hall 1843
Platyceras fecundum Perner 1911
Platyceras galeritus Whidborne 1891
Platyceras gaspense Clarke 1908
Platyceras gibbosum Hall 1859
Platyceras gracilis Sandberger 1842
Platyceras guesnini Clarke 1908
Platyceras hainensis Maurer 1885
Platyceras haliotis de Sowerby and Murchison 1839
Platyceras haliotoides Meek and Worthen 1866
Platyceras hebes Clarke 1907
Platyceras holzapfeli Spitz 1907
Platyceras humulus Perner 1911
Platyceras kahlebergensis Beushausen 1884
Platyceras latum Keyes 1888
Platyceras leboutillieri Clarke 1907
Platyceras lejeunii Clarke 1908
Platyceras magnificum Hall 1859
Platyceras mansfieldense Tassell 1977
Platyceras marylandicum Clarke and Swartz 1913
Platyceras minutum Chapman 1916
Platyceras multiplicatus Giebel 1858
Platyceras nasutum Miller 1891
Platyceras nettersheimensis Heidelberger 2003
Platyceras nodosum Conrad 1841
Platyceras oehlerti Spitz 1907
Platyceras paralium White and Whitfield 1862
Platyceras patelliforme Holzapfel 1895
Platyceras pericompsus Whidborne 1891
Platyceras plicatile Hall 1879
Platyceras priscum Goldfuss 1844
Platyceras pulcherrimum Rowley 1908
Platyceras reflexum Hall 1859
Platyceras richtum Hall 1879
Platyceras rictum Hall 1862
Platyceras robustum Hall 1859
Platyceras sigmoidale Phillips 1841
Platyceras sinuatum Hall 1859
Platyceras spirale Hall 1859
Platyceras squamosus Trenkner 1868
Platyceras subrotundum Snider 1915
Platyceras subumbonatum Northrop 1939
Platyceras thetis Hall 1862
Platyceras trilobatum Hall 1859
Platyceras trojani Blodgett and Johnson 1992
Platyceras uncinatus Roemer 1852
Platyceras undata Hall 1859
Platyceras unicus Hall 1879
Platyceras ussheri Whidborne 1891
Platyceras vetusta Sowerby 1829
Platyceras villmarensis Basse and Heidelberger 2002
Platyceras yochelsoni Kulas and Batten 1997
G. †Platyconus Perner 1907
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Platyconus carinata Murchison 1839
Platyconus pullus Perner 1903
G. †Platyloron Oehlert and Oehlert 1888
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Platyloron bischoffii Goldfuss 1844
Platyloron dispar Lindström 1884
Platyloron shaleri Whidborne 1892
Platyloron voluta Lindström 1884
G. †Platyworthenia Chronic 1952
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G. †Platyzona Knight 1945
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Platyzona arkansana Girty 1915
Platyzona hespera Kues and Batten 2001
Platyzona humilis de Koninck 1877
G. †Plethospira Ulrich and Scofield 1897
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Plethospira cannonensis Stauffer 1937
Plethospira cassina Whitfield 1886
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Invalid names: Plethospira subangulata Flower 1968 [synonym]
Plethospira difficilis Whitfield 1890
Plethospira extensa Heller 1954
Plethospira floweri Fortey and Peel 1990
Invalid names: Seelya Ulrich and Scofield 1897 [synonym]
G. †Pleurorima Perner 1907
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Pleurorima confertinemilata Fagerstrom 1961
Pleurorima cytherea Perner 1903
Pleurorima famula Perner 1907
Pleurorima hoffmannae Blodgett and Johnson 1992
Pleurorima kayseri Clarke and Ruedemann 1903
Pleurorima leptoconcha Perner 1907
Pleurorima migrans Perner 1907
Pleurorima moydartensis McLearn 1924
Pleurorima sandbergi Koken 1889
Pleurorima tranquilla Perner 1907
Pleurorima wisbeyensis Lindström 1884
G. †Pleurotomaria Defrance 1826
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Pleurotomaria bicoronata Sandberger and Sandberger 1855
Pleurotomaria cingulata Goldfuss 1844
Invalid names: Pleurotomaria idia Hall 1861 [nomen vanum]
G. †Porcellia Léveillé 1835
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Porcellia chesterensis Thein and Nitecki 1974
Porcellia denayi Blodgett and Johnson 1992
Porcellia hertzeri Hall 1876
Porcellia nais Hall 1859
Porcellia prolatatora Schopf and Linsley 1994
Porcellia puzo Léveillé 1835
Porcellia sciota Hall and Whitfield 1873
Porcellia spinosus Goldfuss 1844
Porcellia striata Goldfuss 1844
G. †Portlockiella Knight 1945
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Portlockiella blanda de Koninck 1851
G. †Praenatica Perner 1903
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Praenatica orthostoma Barrois 1889
Praenatica proeva Perner 1903
G. †Prosolarium Perner 1903
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Prosolarium crenulata Sedgwick and M'Coy 1855
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Invalid names: Pleurotomaria eloroidea Kindle 1903 [synonym]
Prosolarium deiopei Billings 1865
Prosolarium dominus Perner 1903
Prosolarium duslii Perner 1907
Prosolarium halei Hall 1867
Prosolarium incumbens Perner 1907
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Invalid names: Prosolarium excelsa Perner 1907 [synonym]
Prosolarium markhaensis Peel and Gubanov 1997
Prosolarium platybasis Northrop 1939
Prosolarium procerum Perner 1903
Prosolarium scalatum Northrop 1939
G. †Protospirialis Clarke 1904
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G. †Proturritella Koken 1889
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Proturritella bicarinata Wahlenberg 1821
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Invalid names: Gonionema angulosum Koken 1897 [synonym], Proturritella gradata Koken 1897 [synonym], Proturritella reticulata Koken 1897 [synonym]
Proturritella cyclophora Koken and Perner 1925
Proturritella gracilis Koken 1889
Proturritella historicum Hudson 1905
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Invalid names: Proturritella altisulcatum Hudson 1905 [synonym], Proturritella epitome Hudson 1905 [synonym], Proturritella normaliana Raymond 1905 [synonym]
G. †Pseudotectus Perner 1903
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Pseudotectus annae Frech 1894
Pseudotectus comes Perner 1903
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Invalid names: Pseudotectus hercynia Billings 1865 [synonym]
Pseudotectus immersus Perner 1903
Pseudotectus scupini Spitz 1907
G. †Ptychospirina Perner 1907
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Ptychospirina senaria Perner 1907
Ptychospirina varians Hall 1876
G. †Pycnotrochus Perner 1903
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Pycnotrochus prosper Perner 1903
Pycnotrochus viator Perner 1903
G. †Raphispira Perner 1903
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Raphispira plena Perner 1903
G. †Ruedemannia Foerste 1914
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Ruedemannia aberrans Perner 1903
Ruedemannia cognata Perner 1903
Ruedemannia crassior Perner 1903
Ruedemannia fristschi Perner 1903
Ruedemannia holmi Lindström 1884
Ruedemannia humilis Ulrich and Scofield 1897
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Invalid names: Lophospira belli Foerste 1924 [synonym], Rudemannia lineata Bradley 1930 [synonym]
Ruedemannia instabilis Donald 1906
Ruedemannia lirata Ulrich and Scofield 1897
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Invalid names: Ruedemannia aista Koken 1896 [synonym], Ruedemannia breviangulata Secrist and Evitt 1943 [synonym], Ruedemannia prisca Koken and Perner 1925 [synonym]
Ruedemannia robusta Lindström 1884
Ruedemannia sodalis Koken 1897
Ruedemannia striatula Perner 1907
Ruedemannia subrobusta Perner 1907
Ruedemannia tolli Koken 1897
Ruedemannia trilix Hall 1862
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Invalid names: Ruedemannia sciotoensis Stauffer 1909 [synonym]
G. †Salterospira Batten 1966
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Salterospira chesterensis Meek and Worthen 1860
Salterospira okawensis Thein and Nitecki 1974
Salterospira plectata Batten 1966
Salterospira tabulata Batten 1966
G. †Scalaetrochus Etheridge 1890
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Scalaetrochus fragosus Linsley 1968
Scalaetrochus lindstroemi Etheridge 1890
Scalaetrochus sinensis Pan and Cook 2003
Scalaetrochus stachei Spitz 1907
Scalaetrochus subalatus de Verneuil 1850
Scalaetrochus tectiformis Whiteaves 1892
Scalaetrochus vilis Spitz 1907
G. †Schizopea Butts 1926
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Schizopea abrupta Ulrich et al. 1931
Schizopea dubia Ulrich et al. 1931
Schizopea elevata Ulrich et al. 1931
Schizopea grandis Ulrich et al. 1931
Schizopea normalis Ulrich et al. 1931
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Invalid names: Dirhachopea corrugata Ulrich et al. 1931 [synonym], Schizopea intermedia Ulrich et al. 1931 [synonym]
Schizopea primordialis Winchell 1864
Schizopea subrotunda Ulrich et al. 1931
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Invalid names: Schizopea appressa Ulrich et al. 1931 [synonym]
Schizopea transitans Ulrich et al. 1931
Schizopea typica Ulrich et al. 1931
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Invalid names: Rhachopea angulata Flower 1968 [synonym]
Schizopea wanwanensis Kobayashi 1933
Schizopea wanwankouensis Yü and Yochelson 1999
Schizopea washburnei Butts 1926
G. †Semitubina Cossmann 1918
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Semitubina sakoi Kase 1986
Semitubina yukonensis Blodgett et al. 2001
G. †Serpentubina Horný 1964
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G. †Shansiella Yin 1932
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Shansiella beckwithana McChesney 1859
Shansiella broadheadi White 1880
Shansiella canaliculatus Römer 1843
Shansiella carbonaria Norwood and Pratten 1855
Shansiella globosa Thomas 1940
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Invalid names: Shansiella nitida Thomas 1940 [synonym]
G. †Sinuopea Ulrich 1911
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Sinuopea advena Winchell 1864
Sinuopea basiplanata Ulrich et al. 1931
Sinuopea cingulata Ulrich et al. 1931
Sinuopea emminencis Ulrich et al. 1931
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Invalid names: Taeniospira naticoides Flower 1968 [synonym]
Sinuopea parva Cleland 1900
Sinuopea stclairi Ulrich et al. 1931
Sinuopea sweeti Whitfield 1882
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Invalid names: Sinuopea regalis Ulrich et al. 1931 [synonym]
Sinuopea vera Ulrich et al. 1931
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Invalid names: Sinuopea umbilicata Ulrich et al. 1931 [synonym]
Invalid names: Taeniospira Ulrich et al. 1931 [synonym]
G. †Spiroscala Knight 1945
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Spiroscala acuminata Thomas 1940
Spiroscala conoides Meek and Worthen 1867
Spiroscala decorata Hoare et al. 1997
Spiroscala georgiannae Kues and Batten 2001
Spiroscala intricata Batten 1966
Spiroscala pagoda Knight 1945
Spiroscala solida Hyde 1953
G. †Stegocoelia Donald 1889
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Stegocoelia compacta Donald 1889
Stegocoelia kentuckiensis Thein and Nitecki 1974
Stegocoelia longissima Whidborne 1896
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Invalid names: Hypergonia gracilis Goldfuss 1844 [synonym]
Stegocoelia nodosa Yoo 1988
Stegocoelia okawensis Thein and Nitecki 1974
Stegocoelia quadricincta Winchell 1863
Stegocoelia smithiana Donald 1895
Stegocoelia variabilis Donald 1895
G. †Straparollina Billings 1865
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Straparollina anceps Koken and Perner 1925
Straparollina asperostriata Billings 1860
Straparollina atavus Koken and Perner 1925
Straparollina basicarinata Cullison 1938
Straparollina cassina Whitfield 1886
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Invalid names: Lophospira corrugata Cullison 1938 [synonym], Lophospira dutchtownensis Cullison 1938 [synonym], Lophospira grandis Butts 1926 [synonym]
Straparollina circe Billings 1860
Straparollina eurydice Billings 1860
Straparollina gregaria Billings 1859
Straparollina holtedahli Strand 1932
Straparollina hudsoni Raymond 1905
Straparollina infida Perner 1903
Straparollina minima Whitfield 1897
Straparollina nitida Koken and Perner 1925
Straparollina norvegicus Koken and Perner 1925
Straparollina ophelia Billings 1865
Straparollina pelagica Billings 1865
Straparollina procris Billings 1865
Straparollina smoeleni Holtedahl 1915
Straparollina turgida Hall 1847
G. †Strophostylus Hall 1859
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Strophostylus chesterensis Thein and Nitecki 1974
Strophostylus elegans Hall 1859
Strophostylus fitchi Hall 1859
Strophostylus girtyi Knight 1934
Strophostylus matheri Hall 1859
Strophostylus obtusus Hall 1859
Strophostylus unica Hall 1862
Strophostylus wortheni Weller 1916
G. †Taemasotrochus Tassell 1982
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Taemasotrochus giganticus Tassell 1982
Taemasotrochus nodosa Pan and Cook 2003
G. †Taosia Girty 1939
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Taosia copei White 1881
Taosia dozierensis Beede 1907
Taosia mongolica Grabau 1931
Taosia wortheni Knight 1942
G. †Tapinotomaria Batten 1956
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Tapinotomaria psiche Gemmellaro 1889
Tapinotomaria spinosa Batten 1966
G. †Threavia Lamont 1946
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Threavia gulosa Lamont 1946
Threavia nuda Horný 1992
G. †Trachydomia Meek and Worthen 1866
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Trachydomia nodosa Meek and Worthen 1860
Trachydomia oweni Knight 1933
Trachydomia raymondi Sturgeon 1964
Trachydomia turbonitella Batten 1995
Trachydomia whitei Knight 1933
G. †Triangularia Frech 1894
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Triangularia paradoxa Frech 1894
G. †Trochonema Salter 1859
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Trochonema beachi Whitfield 1878
Trochonema bellulum Ulrich and Scofield 1897
Trochonema beloitense Whitfield 1878
Trochonema biangulata Hall 1847
Trochonema coxi Wilson 1938
Trochonema eccentricum Ulrich and Scofield 1897
Trochonema fragile Ulrich and Scofield 1897
Trochonema liljevalli Rohr 1980
Trochonema madisonense Ulrich and Scofield 1897
Trochonema minus Koken 1897
Trochonema panderi Koken 1896
Trochonema peraltum Koken 1897
Trochonema retrorsum Ulrich and Scofield 1897
Trochonema rugosa Ulrich and Scofield 1897
Trochonema schmidti Koken 1897
Trochonema trochonemoides Ulrich and Scofield 1897
Trochonema umbilicata Hall 1847
Trochonema vagrans Ulrich and Scofield 1897
Trochonema valenticum Pitcher 1939
Trochonema vittatum Koken and Perner 1925
G. †Trochonemella Okulitch 1935
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Trochonemella arachne Billings 1865
Trochonemella churkini Rohr and Blodgett 1985
Trochonemella knoxvillensis Ulrich and Scofield 1897
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Invalid names: Trochonemella rectangulare Raymond 1905 [synonym]
Trochonemella montrealensis Okulitch 1935
Trochonemella notablis Ulrich and Scofield 1897
G. Trochus Linnaeus 1758
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Trochus nessigii Römer 1843
G. †Tubina Owen 1859
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Tubina armata Owen 1859
Tubina geyeri Frech 1894
Tubina knighti Horný 1992
G. †Tubomphalus Perner 1903
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Tubomphalus crenistria Perner 1903
Tubomphalus elatus Perner 1903
Tubomphalus emergens Perner 1903
Tubomphalus inflatus Perner 1907
G. Turbo Linnaeus 1758
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Turbo torosus Kirchner 1915
Turbo zonatus Kirchner 1915
G. †Turbonitella de Koninck 1881
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Turbonitella biserialis Phillips 1836
Turbonitella fraterna Perner 1903
Turbonitella humilis Perner 1903
Turbonitella ovoides Perner 1903
Turbonitella primula Perner 1903
Turbonitella proligera Perner 1903
Turbonitella pusilla Perner 1903
Turbonitella semisulcatus Phillips 1836
Turbonitella strialata Römer 1843
Turbonitella trunculinoda Linsley 1968
Turbonitella turberculata Kirchner 1915
Turbonitella ussheri Whidborne 1891
G. †Turbonopsis Grabau and Shimer 1909
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Turbonopsis apachiensis Day and Beus 1982
Turbonopsis coronola Clarke and Swartz 1913
Turbonopsis shumardii Hall 1879
Turbonopsis spiculatus Fenton and Fenton 1924
G. †Tychonia de Koninck 1881
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Tychonia glabrata Phillips 1836
G. †Umbospira Perner 1903
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Umbospira nigricans Perner 1903
Umbospira yochelsoni Peel 1977
G. †Visitator Perner 1911
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Visitator cylindricum Talent and Philip 1956
Visitator extraneus Perner 1911
G. †Wellergyi Thein and Nitecki 1974
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Wellergyi brazerianum Girty 1927
Wellergyi chesterensis Thein and Nitecki 1974
Wellergyi dunlopi Thomas 1940
Wellergyi subdecussatus Geinitz 1866
G. †Westerna Webster 1905
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Westerna gigantea Webster 1888
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Invalid names: Westerna crassum Webster 1888 [synonym]
G. †Worthenia de Koninck 1883
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Worthenia constantini Mansuy 1912
Worthenia corrugata Chronic 1952
Worthenia legrandi Kues and Batten 2001
Worthenia parvula Hoare et al. 1997
Worthenia sculpta Phillips 1836
Worthenia speciosa Meek and Worthen 1860
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Invalid names: Worthenia perizomata White 1881 [synonym]
Worthenia strigillata Herrick 1888
Worthenia tabulata Conrad 1835
G. †Yunnania Mansuy 1912
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Yunnania minor de Koninck 1881
Yunnania parallela Phillips 1836
G. †Bucanospira Ulrich and Scofield 1897
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Bucanospira contexta Perner 1903
Bucanospira expansa Ulrich and Scofield 1897
Bucanospira fractum Perner 1903
Bucanospira tuba Perner 1903
G. †Codonocheilus Whiteaves 1884
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Codonocheilus striatum Whiteaves 1884
G. †Craspedostoma Lindström 1884
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Craspedostoma elegantulum Lindström 1884
Craspedostoma filistriatum Lindström 1884
Craspedostoma fugitivum Perner 1907
Craspedostoma glabrum Lindström 1884
Craspedostoma involutum Lindström 1884
Craspedostoma spinulosum Lindström 1884
Craspedostoma tuba Perner 1903
G. †Dihelice Schmidt 1905
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Dihelice dathei Schmidt 1905
G. †Scoliostoma Braun 1838
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Scoliostoma expansilabrum Sandberger and Sandberger 1853
G. †Spirina Kayser 1889
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Spirina brilonensis Kayser 1889
Spirina patula Perner 1903
Spirina symmetrica Perner 1907
G. †Temnospira Perner 1903
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Temnospira monile Perner 1903
Temnospira percinctum Perner 1903
G. †Umbonellina Koken and Perner 1925
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Umbonellina infrasilurica Koken and Perner 1925
G. †Anozyga Hoare 1980
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Anozyga bulla Hoare 1980
G. †Aulacostrepsis Perner 1907
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Aulacostrepsis simplex Perner 1907
G. †Auriptygma Perner 1903
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Auriptygma bulimina Lindström 1884
Auriptygma dunkeri Holzapfel 1882
Auriptygma fenestrata Lindström 1884
Auriptygma fortior Perner 1903
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Invalid names: Auriptygma consepultum Perner 1903 [synonym]
Auriptygma minuta Frýda and Manda 1997
Invalid names: Chuchlina Frýda and Manda 1997 [synonym]
G. †Bulimorpha Whitfield 1882
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Bulimorpha elegans Girty 1927
Bulimorpha elongata Hall 1858
Bulimorpha minor Thein and Nitecki 1974
Bulimorpha whitfieldi Weller 1916
G. †Callispira Nelson 1947
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Callispira grossa Hoare et al. 1997
Callispira novemcostata Nelson 1947
G. †Ceraunocochlis Knight 1931
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Ceraunocochlis blatta Knight 1931
Ceraunocochlis fulminula Knight 1931
Ceraunocochlis gracilis Mansuy 1914
Ceraunocochlis subulata Hoare et al. 1997
G. †Clathronema Blodgett 1992
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Clathronema batteni Blodgett and Johnson 1992
Clathronema cancellata Cleland 1911
Clathronema cingulata Whiteaves 1892
Clathronema cloughi Blodgett 1992
Clathronema reticulata Phillips 1841
Clathronema striatus d'Eichwald 1860
G. †Cyclozyga Knight 1930
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Cyclozyga attenuata Hoare and Sturgeon 1978
Cyclozyga micra Beus 1978
Cyclozyga mirabilis Knight 1930
G. †Cylindritopsis Gemmellaro 1889
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Cylindritopsis insolitus Chronic 1952
Cylindritopsis vaningeni Knight 1931
G. †Cyrtospira Ulrich and Scofield 1897
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Cyrtospira aequalis Koken and Perner 1925
Cyrtospira bicurvata Ulrich and Scofield 1897
Cyrtospira brevis Winchell and Marcy 1866
Cyrtospira directus Foerste 1893
Cyrtospira funata Perner 1903
Cyrtospira granum Koken and Perner 1925
Cyrtospira huenei Koken and Perner 1925
Cyrtospira inexpectata Perner 1903
Cyrtospira lineatus Koken and Perner 1925
Cyrtospira nitens Angelin and Lindström 1880
Cyrtospira notata Billings 1866
Cyrtospira ornatus Koken and Perner 1925
Cyrtospira parvula Billings 1865
Cyrtospira raymondi Hudson 1905
Cyrtospira tortilis Ulrich and Scofield 1897
Cyrtospira wykoffensis Ulrich and Scofield 1897
G. †Devonozyga Horný 1955
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Devonozyga arduum Kirchner 1915
Devonozyga conicum Whidborne 1891
Devonozyga multiplicata Römer 1850
Devonozyga perneri Horný 1955
Devonozyga scalariaeforme Holzapfel 1882
G. †Eocypraea Cossmann 1903
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Eocypraea ewekoroensis Adegoke 1977
G. †Eoptychia Longstaff 1933
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Eoptychia abbreviata de Koninck 1881
G. †Harpagodes Gill 1870
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Harpagodes pseudobicarinata d'Orbigny 1850
G. †Helminthozyga Knight 1930
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Helminthozyga costellata Hoare and Sturgeon 1978
Helminthozyga undulata Hoare and Sturgeon 1978
G. †Hemizyga Girty 1915
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Hemizyga attenuata Hoare and Sturgeon 1980
Hemizyga dubia Girty 1915
Hemizyga elegans Girty 1915
Hemizyga grandicostata Girty 1915
Hemizyga illineata Knight 1930
Hemizyga inflata Knight 1930
Hemizyga larga Kues and Batten 2001
G. †Hyphantozyga Knight 1930
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Hyphantozyga fenestrata Hoare and Sturgeon 1980
Hyphantozyga filicosta Hoare 1961
Hyphantozyga fusiforma Hoare and Sturgeon 1980
Hyphantozyga gracilis Knight 1930
Hyphantozyga grandis Hoare and Sturgeon 1980
Hyphantozyga granifera de Koninck 1876
Hyphantozyga knighti Hoare and Sturgeon 1980
Hyphantozyga perattenuata Hoare and Sturgeon 1980
Hyphantozyga pulchra Hoare and Sturgeon 1980
Hyphantozyga textilis Hoare and Sturgeon 1980
G. †Ianthinopsis Meek and Worthen 1866
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Ianthinopsis tumida Meek and Worthen 1861
G. †Ischnoptygma Erwin 1988
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G. †Katoptychia Perner 1907
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Katoptychia alba Perner 1907
Katoptychia fugitiva Perner 1907
Katoptychia hallii Whidborne 1896
Katoptychia holynensis Frýda and Bandel 1997
G. †Knightella Longstaff 1933
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Knightella shumardiana Winchell 1863
G. †Loxonema Phillips 1841
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Loxonema acicularis Roemer 1855
Loxonema acuminatum Goldfuss 1832
Loxonema bellona Hall 1876
Loxonema benevolum Perner 1907
Loxonema beraunense Perner 1903
Loxonema bongardia Heidelberger 2001
Loxonema boydii Hall 1843
Loxonema carinatum Kirchner 1915
Loxonema coapta Hall 1876
Loxonema cornubicum Longstaff 1909
Loxonema crispa Lindström 1884
Loxonema dalecarlicum Angelin and Lindström 1880
Loxonema danai Clarke 1904
Loxonema debile Perner 1903
Loxonema deornatum de Koninck 1881
Loxonema derelictum Perner 1903
Loxonema fasciatum Lindström 1884
Loxonema fecundum de Koninck 1881
Loxonema fragillima Perner 1907
Loxonema grayianum Longstaff 1909
Loxonema hibernicum Longstaff 1909
Loxonema highlandense Clarke 1909
Loxonema hydraulica Hall and Whitfield 1872
Loxonema inclytum Perner 1907
Loxonema inexpectatum Perner 1903
Loxonema infrasilurica Koken and Perner 1925
Loxonema kayseri Holzapfel 1895
Loxonema laeve Römer 1850
Loxonema ledburiense Longstaff 1909
Loxonema leviusulcum de Koninck 1881
Loxonema lindstroemi Longstaff 1909
Loxonema magnum Whitfield 1878
Loxonema megaspirae Karczewski 1989
Loxonema murrayana Salter 1859
Loxonema nitida Longstaff 1924
Loxonema obsoleta de Sowerby and Murchison 1839
Loxonema parvula Perner 1903
Loxonema paucicostatum Kirchner 1915
Loxonema perlonga Perner 1907
Loxonema perneri Longstaff 1909
Loxonema pikensis Hyde 1953
Loxonema planatum Longstaff 1909
Loxonema plasi Horný 1953
Loxonema pollens Perner 1903
Loxonema polonica Gürich 1896
Loxonema postremum Hall 1883
Loxonema praecedens Perner 1903
Loxonema praeteritum Longstaff 1909
Loxonema propinquum Perner 1907
Loxonema rectangulare Spitz 1907
Loxonema reedi Longstaff 1909
Loxonema renellaeformis Römer 1843
Loxonema rugosum Billings 1857
Loxonema septentrionale Koken and Perner 1925
Loxonema sinuosum de Sowerby and Murchison 1839
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Invalid names: Loxonema acuminatum Perner 1907 [synonym]
Loxonema solida Hall 1859
Loxonema solvens Perner 1907
Loxonema spurium de Koninck 1881
Loxonema strangulatum Lindström 1884
Loxonema subattenuata Hall 1859
Loxonema subconvexa Yü 1961
Loxonema walcotti Blodgett and Johnson 1992
Loxonema wetzlariana Heidelberger 2001
Loxonema winnipegense Whiteaves 1893
Invalid names: Loxonema inconspicuum Girty 1908 [nomen dubium]
G. †Meekospira Ulrich and Scofield 1897
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Meekospira bambooformis Thein and Nitecki 1974
Meekospira batteni Thein and Nitecki 1974
Meekospira delgada Kues and Batten 2001
Meekospira evansvillensis Thein and Nitecki 1974
Meekospira louisvillae Hall and Whitfield 1872
Meekospira minuta Weller 1916
Meekospira mississippiensis Thein and Nitecki 1974
Meekospira peracuta Meek and Worthen 1860
G. †Microptychis Longstaff 1912
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Microptychis cerithiformis Meek and Worthen 1860
Microptychis expetendus Hoare and Sturgeon 1981
Microptychis insolita Kues 2002
Microptychis occabus Hoare and Sturgeon 1981
Microptychis turbineus Hoare and Sturgeon 1981
G. †Orthonema Meek and Worthen 1862
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Orthonema amissidecoris Anderson et al. 1985
Orthonema ascensus Anderson et al. 1985
Orthonema carbonaria Worthen 1884
Orthonema inornatum Knight 1934
Orthonema nebrascense Geinitz 1866
Orthonema salteri Meek and Worthen 1860
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Invalid names: Orthonema conica Meek and Worthen 1867 [synonym], Orthonema werneri Knight 1934 [synonym]
Orthonema semiornatum Anderson et al. 1985
Orthonema socorroense Girty 1909
Orthonema strigatum Warthin 1930
Orthonema subtaeniatum Geinitz 1866
Invalid names: Geolcomia Licharev 1975 [synonym]
G. †Oxyspira Blodgett and Johnson 1992
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Oxyspira murphyi Blodgett and Johnson 1992
G. †Palaeozygopleura Horný 1955
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Palaeozygopleura alinae Perner 1907
Palaeozygopleura antiqua Goldfuss 1844
Palaeozygopleura arcuata Holzapfel 1882
Palaeozygopleura benniana Longstaff 1933
Palaeozygopleura bouskai Horný 1955
Palaeozygopleura canningensis Cook et al. 2003
Palaeozygopleura dodgeyi Cook and Camilleri 1997
Palaeozygopleura funatum Roemer 1855
Palaeozygopleura glabra Clarke and Swartz 1913
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Invalid names: Palaeozygopleura pexata Hall 1861 [synonym]
Palaeozygopleura joani Linsley 1968
Palaeozygopleura kaupii Goldfuss 1844
Palaeozygopleura laxa Hall 1879
Palaeozygopleura lefeburii Léveillé 1835
Palaeozygopleura muoni Tassell 1982
Palaeozygopleura nexile Sedgwick and Murchison 1840
Palaeozygopleura noe Clarke 1885
Palaeozygopleura obliquearcuatum Sandberger and Sandberger 1855
Palaeozygopleura parvula Whitfield 1882
Palaeozygopleura piligera Sandberger and Sandberger 1855
Palaeozygopleura redensis Longstaff 1933
Palaeozygopleura roemeri Kayser 1878
Palaeozygopleura sandbergi Holzapfel 1895
Palaeozygopleura tenuisulcata Sandberger and Sandberger 1854
Palaeozygopleura venusta Thein and Nitecki 1974
Palaeozygopleura vesna Horný 1955
Palaeozygopleura vostokovae Vostokova 1961
Palaeozygopleura welleri Thein and Nitecki 1974
G. †Pseudozygopleura Knight 1930
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Pseudozygopleura angustata Hoare and Sturgeon 1985
Pseudozygopleura baltea Hoare and Sturgeon 1985
Pseudozygopleura cirritus Hoare and Sturgeon 1985
Pseudozygopleura condrai Knight 1930
Pseudozygopleura contractus Hoare and Sturgeon 1981
Pseudozygopleura deloi Knight 1930
Pseudozygopleura eximia Hoare and Sturgeon 1985
Pseudozygopleura funis Knight 1930
Pseudozygopleura girtyi Knight 1930
Pseudozygopleura gradatus Hoare and Sturgeon 1981
Pseudozygopleura irrugata Hoare and Sturgeon 1985
Pseudozygopleura knighti Yochelson 1962
Pseudozygopleura lanceolatus Hoare and Sturgeon 1981
Pseudozygopleura lefebvrei Léveillé 1835
Pseudozygopleura limus Hoare and Sturgeon 1981
Pseudozygopleura macra Knight 1930
Pseudozygopleura moorei Knight 1930
Pseudozygopleura mucronatus Hoare and Sturgeon 1981
Pseudozygopleura palus Hoare and Sturgeon 1981
Pseudozygopleura pandus Hoare and Sturgeon 1981
Pseudozygopleura pugonis Hoare and Sturgeon 1981
Pseudozygopleura pulchra Knight 1930
Pseudozygopleura pupa Knight 1930
Pseudozygopleura rectus Hoare and Sturgeon 1981
Pseudozygopleura restis Knight 1930
Pseudozygopleura scitula Meek and Worthen 1860
Pseudozygopleura scruposus Hoare and Sturgeon 1981
Pseudozygopleura smithiana Longstaff 1933
Pseudozygopleura subulatus Hoare and Sturgeon 1981
Pseudozygopleura variegata Hoare and Sturgeon 1985
G. †Sinospira Yin 1932
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Sinospira ornata Yin 1932
G. †Soleniscus Meek and Worthen 1860
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Soleniscus altonensis McChesney 1865
Soleniscus callosus Yoo 1988
Soleniscus glaber Cumings 1906
Soleniscus gracilis Cox 1857
Soleniscus humilis Keyes 1888
Soleniscus kansaensis Shumard and Swallow 1858
Soleniscus klipparti Meek 1871
Soleniscus planus White 1881
Soleniscus typicus Meek and Worthen 1860
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Invalid names: Loxonema nitidula Meek and Worthen 1860 [synonym]
Strobeus primogenius Conrad 1835
G. †Spanionema Whidborne 1891
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Spanionema varicosa Holzapfel 1895
G. †Spiromphalus Hayasaka 1939
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Spiromphalus pervius Hoare 1980
G. †Strobeus de Koninck 1881
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Strobeus brevis White 1881
Strobeus immanis Kues and Batten 2001
Strobeus intercalaris Meek and Worthen 1860
Strobeus keyesi Rowley 1900
Strobeus mucronatus Yin 1932
Strobeus nobilis Sowerby 1826
Strobeus ovalis Yoo 1994
Strobeus poromus Kues 1990
Strobeus rectilinea Phillips 1836
Strobeus stinesvillensis Cumings 1906
Strobeus tantilla Rowley 1900
Strobeus ventricosus de Koninck 1881
Strobeus welleri Knight 1931
Invalid names: Macrochilina Bayle 1880 [synonym]
G. †Sturgeonospira Hoare 1980
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Sturgeonospira tortula Hoare 1980
G. †Stylonema Perner 1907
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Stylonema absoluta Goldfuss 1844
Stylonema arachne Perner 1907
Stylonema commutatum Perner 1907
Stylonema dilatata Spitz 1907
Stylonema domesticum Perner 1907
Stylonema domina Perner 1903
Stylonema hennahiana Sedgwick and Murchison 1840
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Invalid names: Stylonema costata Sandberger and Sandberger 1853 [synonym], Stylonema tenuireticulata Whidborne 1891 [synonym]
Stylonema innotatum Perner 1907
Stylonema mater Perner 1907
Stylonema modestum Perner 1907
Stylonema oppositum Perner 1907
Stylonema peramplum Perner 1907
Stylonema placidum Perner 1907
Stylonema potens Perner 1907
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Invalid names: Stylonema coalescens Perner 1907 [synonym]
Stylonema rennoni Heidelberger 2001
Stylonema robusta Hall 1859
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Invalid names: Stylonema teres Hall 1876 [synonym]
Stylonema solitarium Perner 1907
Stylonema styloideum Perner 1907
Stylonema transiens Perner 1907
G. †Subulites Emmons 1842
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Subulites acutus Wilson 1932
Subulites amphora d'Eichwald 1856
Subulites attenuatus Lindström 1884
Subulites beloitensis Ulrich and Scofield 1897
Subulites bohemicus Perner 1907
Subulites calciferus Billings 1859
Subulites canadensis Ulrich and Scofield 1897
Subulites conradi Ulrich and Scofield 1897
Subulites dixonenesis Ulrich and Scofield 1897
Subulites elongatus Portlock 1843
Subulites gigas d'Eichwald 1842
Subulites granum Koken and Perner 1925
Subulites lineolata Lindström 1884
Subulites longior Perner 1903
Subulites nanus Ulrich and Scofield 1897
Subulites parvus Ulrich and Scofield 1897
Subulites pergracilis Ulrich and Scofield 1897
Subulites planilateralis Foerste 1893
Subulites priscus d'Eichwald 1860
Subulites prolongatus Raymond 1905
Subulites regularis Ulrich and Scofield 1897
Subulites revalensis Koken 1897
Subulites richardsoni Billings 1857
Subulites stromboides Koken 1897
Subulites subula Koken 1896
Subulites terebriformis Hall and Whitfield 1875
Subulites toernquisti Koken and Perner 1925
Subcl. †Opisthobranchia Milne-Edwards 1848
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Or. Cephalaspidea Fischer 1883
G. †Girtyspira Knight 1936
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Girtyspira germanica Herholz 1992
Girtyspira inflata Yoo 1994
Girtyspira minuta Stevens 1858
G. †Donaldina Knight 1933
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Donaldina americana Thein and Nitecki 1974
Donaldina barnetti Kindle 1900
Donaldina bellilineata Miller 1891
Donaldina filosa Yoo 1988
Donaldina fountainensis Weller 1916
Donaldina gigantea Heidelberger 2001
Donaldina grantonensis Donald 1898
Donaldina marigoldensis Thein and Nitecki 1974
Donaldina media Bandel 2002
Donaldina ohioensis Bandel 2002
Donaldina pygmaea Weller 1916
Donaldina robusta Stevens 1858
Donaldina stevensana Meek and Worthen 1866
Donaldina texana Bandel 2002
Donaldina zadoe Thein and Nitecki 1974
G. †Kimina Yoo 1994
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Kimina australis Yoo 1994
Kimina globosa Yoo 1994
Kimina minor Yoo 1994
Kimina yooi Frýda and Bandel 1997
G. †Platyconcha Longstaff 1933
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G. †Pseudoaclisina Yoo 1994
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G. †Streptacis Meek 1871
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Streptacis complanata Hoare et al. 1997
Streptacis ingens Hoare et al. 1997
Streptacis meeki Knight 1931
Streptacis scalpta Knight 1931
Streptacis whitfieldi Meek 1871
G. †Spyroceras Hyatt 1884
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Spyroceras persculptum Ruedemann 1926
G. †Nuculopsis Girty 1912
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Nuculopsis elongata Morningstar 1922
Nuculopsis glenparkensis Weller 1906
G. †Palaeonucula Quenstedt 1930
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Palaeonucula lunulata Morningstar 1922
G. †Paleyoldia Lintz 1958
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Paleyoldia subscitula Meek and Hayden 1858
G. †Pojetaia Jell 1980
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Pojetaia ostseensis Hinz-Schallreuter 1995
Pojetaia runnegari Jell 1980
Pojetaia sarhoensis Geyer and Streng 1998
G. †Thoralia Morris 1980
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Thoralia languedociana Thoral 1935
Invalid names: Miquelana Babin et al. 1982 [objective synonym]
G. †Yonginella Liljedahl 1992
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Yonginella amica Liljedahl 1992
G. †Ambonychia Hall 1847
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Ambonychia obesa Ulrich 1895
G. †Cleionychia Ulrich 1892
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Cleionychia montrealensis Billings 1859
G. †Leptodesma Hall 1883
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Leptodesma eifelense Dahmer 1943
G. †Pernopecten Winchell 1865
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Pernopecten sowerbyi M'Coy 1844
G. †Carydium Beushausen 1895
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Carydium boliviensis Swartz 1925
Carydium insularis Walcott 1884
G. †Cosmogoniophorina Isberg 1934
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Cosmogoniophorina tenuicostata Harrington 1938
G. †Fordilla Barrande 1881
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Fordilla germanica Elicki 1994
Fordilla troyensis Barrande 1881
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Invalid names: Fordilla sibirica Krasilova 1977 [synonym]
G. †Neofordilla Krasilova 1977
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Neofordilla elegans Krasilova 1977
G. †Redonia Rouault 1851
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Redonia riojana Sanchez 1997
Or. Pholadomyoida Newell 1965
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Superfm. †Edmondioidea King 1850
G. †Permophorus Chavan 1954
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Permophorus complanatus Waagen 1881
G. †Flexicalymene Shirley 1936
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Flexicalymene parvicephala Stumm and Kauffman 1958
G. †Ectenoglossa Sinclair 1945
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Ectenoglossa mantelli Billings 1859
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Lingulasma changi Hussey 1928
Lingulasma divulgata Sinclair 1945
Lingulasma hyacinthensis Foerste 1924
Lingulasma ogontzensis Hussey 1928
Lingulasma progne Billings 1862
Lingulasma whitfieldi Ulrich 1889
G. †Lingulella Salter 1866
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Lingulella clelandi Ulrich and Cooper 1938
Lingulella prolixa Sinclair 1945
G. †Palaeoglossa Cockerell 1911
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Palaeoglossa briseis Billings 1865
Palaeoglossa friabilis Sinclair 1945
G. †Pseudolingula Mickwitz 1909
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Pseudolingula curta Conrad 1842
Pseudolingula scutum Sinclair 1945
G. †Orbiculoidea d'Orbigny 1847
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Orbiculoidea affinis M'Coy 1847
G. †Megamyonia Wang 1949
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Megamyonia gracilis Twenhofel 1928
G. †Neospirifer Fredericks 1919
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Neospirifer alatus Dunbar and Condra 1932
G. †Bolboporites Pander 1830
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Invalid names: Bolboporites Pander 1830 [objective synonym]
Fm. †Phanerotrematidae Knight 1956
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G. †Ulrichospira Donald 1905
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Ulrichospira lloydii de Sowerby and Murchison 1839
Ulrichospira othemensis Lindström 1884
Ulrichospira similis Donald 1905
Ulrichospira valida Lindström 1884
Subfm. †Knightitinae Knight 1956
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G. †Cymatospira Knight 1942
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Cymatospira alternodosa Whitfield 1882
Cymatospira montfortianus Norwood and Pratten 1855
Cymatospira welleri Thein and Nitecki 1974
G. †Patellilabia Knight 1945
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+
Invalid names: Patellilabia acutangula Wang 1980 [synonym], Patellilabia anshunense Wang 1980 [synonym], Patellilabia fragilis Wang 1980 [synonym], Patellilabia mira Wang 1980 [synonym], Patellilabia obliqua Wang 1980 [synonym], Patellilabia papilionis Wang 1980 [synonym], Patellilabia strictomarginata Wang 1980 [synonym], Patellilabia ventricula Wang 1980 [synonym]
Patellilabia chesterensis Thein and Nitecki 1974
Patellilabia laevigata Girty 1910
Patellilabia tentoriolum Knight 1945
Invalid names: Aiptospira Wang 1980 [synonym], Extendilabrum Wang 1980 [synonym], Singulitubus Wang 1980 [synonym], Tetratubispira Wang 1980 [synonym]
Fm. †Bellerophontidae M'Coy 1851
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G. †Sorobanobaca Nishida 1969
G. †Paupospira Wagner 1999
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Paupospira akpatokensis Wilson 1939
Paupospira beatrice Foerste 1914
Paupospira bowdeni Safford 1869
Paupospira burginensis Ulrich and Scofield 1897
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Invalid names: Paupospira peracuta Ulrich and Scofield 1897 [synonym]
Paupospira circe Billings 1857
Paupospira elevata Ulrich and Scofield 1897
Paupospira manitouliensis Foerste 1924
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Invalid names: Paupospira gamachiana Twenhofel 1928 [synonym]
Paupospira moorei Ulrich and Scofield 1897
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Invalid names: Paupospira gigantea Twenhofel 1928 [synonym]
Paupospira oweni Ulrich and Scofield 1897
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Invalid names: Lophospira saffordi Ulrich and Scofield 1897 [synonym], Pleurotomaria (Lophospira) spoliata Perner 1907 [synonym]
Paupospira soluta Koken and Perner 1925
Paupospira sumnerensis Safford 1869
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Invalid names: Paupospira liosutura Secrist and Evitt 1943 [synonym]
Paupospira tenuistriata Ulrich and Scofield 1897
Paupospira thebesensis Savage 1913
Paupospira trilineata Foerste 1923
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Invalid names: Paupospira perneri Longstaff 1924 [synonym]
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Invalid names: Lophospira acutocarinata Twenhofel 1928 [synonym], Lophospira ampla Ulrich and Scofield 1897 [synonym], Paupospira expansa Secrist and Evitt 1943 [synonym], Paupospira perlamellosus Ulrich and Scofield 1897 [synonym]
Paupospira varians Billings 1857
Paupospira viator Perner 1907
Fm. †Oriostomatidae Koken 1896
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G. †Australonema Tassell 1980
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Australonema acuta Heidelberger 2001
Australonema australis Etheridge 1890
Australonema blodgetti Frýda and Manda 1997
Australonema chico Mawson et al. 2002
Australonema guillieri Oehlert 1877
Australonema havliceki Frýda and Bandel 1997
Australonema immersum Spitz 1907
Australonema iniquilineatum Sandberger and Sandberger 1854
Australonema lilydalensis Etheridge 1891
Australonema parva Mawson et al. 2002
Australonema persimile Spitz 1907
Australonema simpsoni Cook and Camilleri 1997
Australonema varvarae Gubanov and Yochelson 1994
Australonema wellingtonensis Etheridge 1898
G. †Dohmella Heidelberger 2001
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Dohmella multistriatus Kirchner 1915
G. †Gemininodosa Cook and Camilleri 1997
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Gemininodosa langi Cook and Camilleri 1997
G. †Lineata Heidelberger 2001
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Lineata dannenbergi Goldfuss 1844
Lineata zenkeri Heidelberger 2001
G. †Morphotropis Perner 1903
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Morphotropis aliena Perner 1903
Morphotropis bohemica Perner 1903
Morphotropis capillosa Perner 1903
Morphotropis discreta Perner 1903
Morphotropis helicina Lindström 1884
Morphotropis nitidissimum Lindström 1884
Morphotropis obsolescens Perner 1903
Morphotropis procera Perner 1903
Morphotropis tremulans Perner 1903
G. †Omphalonema Grabau 1936
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Invalid names: Cyclospongia Miller 1891 [nomen nudum]
Fm. †Omphalotrochidae Knight 1945
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G. †Arastra Stoyanow 1948
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Arastra torquata Stoyanow 1948
G. †Archaeosphera Heidelberger and Bandel 1999
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Archaeosphera lithoides Kirchner 1915
Archaeosphera minimus Kirchner 1915
Archaeosphera simbergi Heidelberger 2001
Archaeosphera wachtbergi Kirchner 1915
G. †Cinclidonema Knight 1945
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Cinclidonema clausepeakensis Kulas and Batten 1997
G. †Coronopsis Waterhouse 1963
G. †Fujispira Kase and Nishida 1986
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Fujispira japonica Kase and Nishida 1986
G. †Labrocuspis Heidecker 1959
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Labrocuspis kobayashii Kase and Nishida 1986
Labrocuspis nodosa Heidecker 1959
G. †Omphalotrochus Meek 1864
G. †Sylvestria Heidelberger 2001
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Sylvestria soetenichensis Kirchner 1915
G. †Trochonemopsis Meek 1873
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Trochonemopsis emacerata Hall and Whitfield 1872
Trochonemopsis meekanum Miller 1889
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Invalid names: Trochonemopsis ovoides Grabau and Sherzer 1910 [synonym], Trochonemopsis tricarinata Meek 1871 [replaced]
Trochonemopsis rectilatera Hall and Whitfield 1872
Trochonemopsis yandellana Hall and Whitfield 1872
G. †Frodospira Wagner 1999
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Frodospira cochleata Lindström 1884
Frodospira imbricata Lindström 1884
Frodospira munda Lindström 1884
Frodospira tortuosa Lindström 1884
Or. †Murchisoniina Cox and Knight 1960
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Superfm. †Eotomarioidea Wenz 1938
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Fm. †Phymatopleuridae Batten 1956
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G. †Austroscalata Waterhouse 1987
G. †Catazona Gordon and Yochelson 1983
G. †Discotomaria Batten 1956
G. †Vicnigoria Mazaev 2019
Fm. †Porcelliidae von Zittel 1895
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Subfm. †Agnesiinae Knight 1956
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G. †Anoriostoma Farrell 1992
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Anoriostoma inusitata Farrell 1992
Invalid names: Garraspira Frýda and Farrell 2005 [synonym]
G. †Trochagnesia Heidelberger 2001
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Trochagnesia exsiliens Sandberger and Sandberger 1853
G. †Blodgettina Frýda 2000
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Blodgettina reticulata Frýda 2000
G. †Bohemipleura Frýda 1998
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Bohemipleura pragensis Frýda 1998
G. †Minervaenema Horný 1992
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Minervaenema minerva Perner 1907
Subfm. †Pavlodiscinae Fryda 1998
G. †Pleurotobembex Solle 1956
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G. †Quadricarina Blodgett and Johnson 1992
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Quadricarina attava Perner 1907
Quadricarina cancellata Lindström 1884
Quadricarina glabrobasis Blodgett and Johnson 1992
Quadricarina glandiformis Lindström 1884
Quadricarina hamlingii Whidborne 1896
Quadricarina humillima Perner 1907
Quadricarina lenticularis Goldfuss 1844
Quadricarina noklebergi Frýda and Blodgett 2004
Quadricarina pioni Tassell 1982
Quadricarina quadrata Spitz 1907
Quadricarina scutulata Lindström 1884
Quadricarina senilis Perner 1907
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Invalid names: Pleurotomaria (Oehlertia) daphnella Perner 1907 [synonym], Pleurotomaria (Oehlertia) humilis Perner 1907 [synonym]
Quadricarina voltumna Billings 1874
Invalid names: Oehlertia Perner 1907 [replaced], Paraoehlertia Frýda 1998 [synonym]
Fm. †Portlockiellidae Batten 1956
Invalid names: Porcellioidea von Zittel 1895 [synonym]
Superfm. †Loxonematoidea Koken 1889
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Fm. †Crassimarginatidae Frýda et al. 2002
Fm. †Scoliostomatidae Frýda et al. 2002
Fm. †Soleniscidae Knight 1931
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G. †Alaskacirrus Frýda and Blodgett 1998
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Alaskacirrus bandeli Frýda and Blodgett 1998
G. †Decorochilina Frýda 1999
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Decorochilina aulakion Mawson et al. 2002
Decorochilina australe Tassell 1982
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Invalid names: Decorochilina ornata Tassell 1982 [synonym]
Decorochilina bohemica Perner 1903
Decorochilina cancellata Lindström 1884
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Invalid names: Decorochilina rara Perner 1903 [synonym]
Decorochilina capillosa Perner 1903
Decorochilina costata Frýda 1999
Decorochilina crassior Perner 1903
Decorochilina dispar Perner 1903
Decorochilina evoluta Perner 1903
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Invalid names: Decorochilina bulloides Perner 1907 [synonym]
Decorochilina frechi Spitz 1907
Decorochilina phillipsii Römer 1843
Decorochilina queenslandicus Cook and Camilleri 1997
Decorochilina recticosta Perner 1903
Decorochilina whidbornei Perner 1903
Invalid names: Decorochilina robusta Radabaugh 1942 [nomen nudum]
G. †Havlicekiela Frýda 1999
G. †Leptoptygma Knight 1936
+
Leptoptygma golconda Thein and Nitecki 1974
Leptoptygma oligospira Winchell 1863
Leptoptygma simplex Knight 1931
Leptoptygma virgatum Knight 1931
G. †Nanochilina Frýda 1998
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Nanochilina gubanovi Frýda and Blodgett 2004
Nanochilina holynensis Frýda 1998
G. †Palaeocarboninia Bandel and Heidelberger 2002
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Palaeocarboninia jankei Bandel and Heidelberger 2002
G. †Scalitina Spriesterbach 1919
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Scalitina montana Spriesterbach 1919
Invalid names: Macrochilininae Knight 1931 [empty]
G. †Vetotuba Etheridge 1890
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Vetotuba bauerae Cook 1994
Vetotuba brazieri Etheridge 1890
Invalid names: Stylogastropoda Frýda and Bandel 1997 [objective synonym]
Superfm. †Subulitoidea Lindström 1884
Superfm. †Trochonematoidea von Zittel 1895
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Fm. †Lophospiridae Wenz 1938
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G. †Biarmeaspira Mazaev 2006
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Biarmeaspira penea de Verneuil 1845
G. †Ectomaria Koken 1896
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Ectomaria adelina Billings 1865
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Invalid names: Ectomaria missisquoi Billings 1865 [synonym]
Ectomaria adventa Butts 1926
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Invalid names: Ectomaria peachii Donald 1899 [synonym]
Ectomaria nieszkowskii Schmidt 1858
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Invalid names: Ectomaria kirnaensis Koken 1897 [synonym]
Ectomaria orientalis Donald 1906
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Invalid names: Ectomaria laticarinata Foerste 1924 [synonym]
Ectomaria pagoda Salter 1859
Ectomaria prisca Billings 1859
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Invalid names: Ectomaria exigua Donald 1899 [synonym], Ectomaria girvanensis Donald 1899 [synonym]
Subfm. †Gyronematinae Knight 1956
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G. †Eunema Salter 1859
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Eunema centralis Ulrich and Scofield 1897
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Invalid names: Lophospira delicata Tofel and Bretsky 1987 [synonym]
Eunema concinnula Ulrich and Scofield 1897
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Invalid names: Lophospira fillmorensis Ulrich and Scofield 1897 [synonym]
Eunema erigone Billings 1865
Eunema fasciata Savage 1913
Eunema helicteres Salter 1859
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Invalid names: Eunema sexlineata Shrock and Raasch 1937 [synonym], Eunema wisconsinensis Ulrich and Scofield 1897 [synonym]
Eunema quadrisulcata Ulrich and Scofield 1897
Eunema salopiense Pitcher 1939
Eunema strigillatum Salter 1859
Eunema trilineata Hall 1868
G. †Gyronema Ulrich and Scofield 1897
+
Gyronema pulchellum Ulrich and Scofield 1897
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Invalid names: Gyronema liratum Ulrich and Scofield 1897 [replaced]
Gyronema rotalineum Raymond 1906
Gyronema semicarinatum Salter 1859
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Invalid names: Gyronema duplicata Ulrich and Scofield 1897 [synonym]
G. †Hanusispira Horný 1992
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Hanusispira confinis Perner 1907
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Invalid names: Hanusispira tienshanica Gubanov et al. 1995 [synonym]
Hanusispira fermioni Tassell 1982
Hanusispira fugitiva Perner 1907
Hanusispira hanusi Frýda and Manda 1997
Hanusispira tibidiensis Blodgett et al. 1999
Invalid names: Bouskaspira Frýda 1999 [synonym], Finisterella Blodgett et al. 1999 [synonym]
G. †Yochelsonospira Thein and Nitecki 1974
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Yochelsonospira mississippiensis White and Whitfield 1862
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Invalid names: Yochelsonospira pagoda Thein and Nitecki 1974 [synonym]
Fm. †Trochonematidae von Zittel 1895
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G. †Berouniconcha Frýda 1998
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Berouniconcha filosum Perner 1907
Berouniconcha hesione Perner 1907
Invalid names: Lophospiroidea Wenz 1938 [objective synonym]
Subfm. †Coelozoninae Knight 1956
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G. †Arfurtia Heidelberger 2001
G. †Barocospira Horný 1964
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Barocospira carnica Frech 1894
Barocospira cindiprellerae Frýda et al. 2006
Barocospira clavicula Oehlert and Oehlert 1888
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Invalid names: Barocospira evoluta Frech 1894 [synonym]
Barocospira linsleyi Rohr and Smith 1978
G. †Bicarina Jhaveri 1969
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Bicarina coluber Perner 1903
Bicarina euomphaloides Spitz 1907
Bicarina euomphalus Sandberger and Sandberger 1853
Bicarina fasciatum Goldfuss 1844
Bicarina onoi Kase and Nishida 1986
Bicarina petilitornata Linsley 1968
Bicarina vittatum Goldfuss 1844
G. †Burdekinostoma Cook 1997
+
G. †Eoplatyzona Frýda 1998
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Eoplatyzona ongaroae Blodgett et al. 1999
Eoplatyzona pulchra Frýda 1998
Eoplatyzona squamatoplicata Sandberger and Sandberger 1854
G. †Frydiella Krawczyński 2006
G. †Lahnia Heidelberger 2001
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Lahnia froeberi Heidelberger 2001
Lahnia infranodosa Whiteaves 1892
G. †Lahnospira Heidelberger 2001
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Lahnospira costatofasciata Sandberger 1842
Lahnospira fasciata Sandberger 1842
Lahnospira kayseri Ulrich 1892
Lahnospira subsulcata Sandberger 1842
Lahnospira taeniata Goldfuss 1844
G. †Lukesispira Frýda and Manda 1997
+
Lukesispira frydai Heidelberger and Bandel 1999
Lukesispira pulchra Frýda and Manda 1997
G. †Manitobiella Blodgett and Frýda 1999
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Manitobiella goniostoma Whiteaves 1890
+
Invalid names: Manitobiella michiganensis Radabaugh 1942 [synonym], Manitobiella spenceri Whiteaves 1892 [synonym]
Invalid names: Bathmospira Radabaugh 1942 [replaced]
Tr. †Mourloniides Yochelson and Dutro 1960
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G. †Ptychomphalina Fischer 1885
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Ptychomphalina angulata Easton 1943
Ptychomphalina cancellata Chronic 1952
Ptychomphalina convivens Perner 1907
Ptychomphalina cuneoi Ferrari and Sabattini 2008
Ptychomphalina fasciata Goldfuss 1844
Ptychomphalina lucina Hall 1862
Ptychomphalina regulosa Perner 1903
Ptychomphalina testis Perner 1907
Ptychomphalina trinchesil Gemmellaro 1889
G. †Odontomaria Roemer 1876
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Odontomaria elephantina Roemer 1876
Odontomaria semiplicata Sandberger and Sandberger 1850
G. †Peruvispira Chronic 1949
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Peruvispira delicata Chronic 1949
G. †Pleurotaunica Heidelberger 2001
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Pleurotaunica fina Heidelberger 2001
Pleurotaunica subimbricata Whidborne 1892
G. †Prokopelia Horný 1992
+
Prokopelia occludens Perner 1907
G. †Schizolopha Ulrich and Scofield 1897
+
Schizolopha textilis Ulrich and Scofield 1897
G. †Spinulrichospira Blodgett and Rohr 1989
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Spinulrichospira cheeneetnukensis Blodgett and Rohr 1989
Spinulrichospira churkini Blodgett 1992
G. †Tasselliana Cook et al. 2003
+
Tasselliana australis Cook et al. 2003
G. †Tragotoma Horný 1986
+
Tragotoma extensa Heidenhain 1869
G. †Villmaria Heidelberger 2001
+
Villmaria catenulata d’Archiac and de Verneuil 1842
Villmaria linteatus Goldfuss 1844
Villmaria rotundata Roemer 1855
Villmaria subclathrata Sandberger 1842
Villmaria ventricosa Heidelberger 2001
Villmaria victrix Whidborne 1889
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Invalid names: Villmaria dissimulatrix Whidborne 1892 [synonym]
G. †Winterbergiella Blodgett and Frýda 1999
+
Winterbergiella binodosa Römer 1843
Winterbergiella praebinodosa Heidelberger 2001
G. †Wisconsinella Blodgett 1988
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Wisconsinella clelandi Blodgett 1988
+
Invalid names: Wisconsinella simozonum Radabaugh 1942 [synonym]
G. †Zalozone Linsley 1968
+
Zalozone lacunata Linsley 1968
Fm. †Gosseletinidae Wenz 1938
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G. †Balbinipleura Bandel and Frýda 1996
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Balbinipleura bohemica Bandel and Frýda 1996
Balbinipleura koninckii Bandel and Frýda 1996
Balbinipleura krawczynskii Frýda and Blodgett 2004
Balbinipleura sextalineata Heidelberger 2001
G. †Buechelia Schlüter 1894
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Buechelia bronni Goldfuss 1844
Buechelia goldfussi Schlüter 1894
Buechelia horizontalis Heidelberger and Bandel 1999
Buechelia nodosa Blodgett 1992
Buechelia tyrrelli Whiteaves 1892
Buechelia wachtbergi Heidelberger 2001
G. †Eiserhardtia Frýda 2000
+
Eiserhardtia inepta Frýda 2000
G. †Kirchneriella Frýda 2000
+
Kirchneriella altaica Murchison et al. 1845
Kirchneriella striata Hisinger 1837
Subfm. †Neilsoniinae Knight 1956
+
G. †Collabrina Waterhouse 1978
+
Collabrina cliftoni Etheridge 1872
G. †Ferganispira Licharev 1967
+
Ferganispira gradussiformis Licharev 1967
G. †Montospira Maxwell 1964
+
Montospira kempseyensis Campbell 1962
G. †Neoparaliospira Frýda 1998
+
G. †Nodulispira Pan and Cook 2003
+
Nodulispira danmianshanensis Pan and Cook 2003
Nodulispira tuberculata Kase and Nishida 1988
Subfm. †Pithodeinae Wenz 1938
+
G. †Caliendrum Brown 1849
+
Caliendrum vittatum Phillips 1836
G. †Pithodea de Koninck 1881
+
Pithodea americana Thein and Nitecki 1974
Pithodea suturalis Phillips 1836
Pithodea tornatilis Phillips 1836
G. †Wortheniopsis Böhm 1895
G. †Promourlonia Longstaff 1924
+
Promourlonia biformis Lindström 1884
Promourlonia durhamensis Whiteaves 1884
Promourlonia furcata Longstaff 1924
Subfm. †Turbonellininae Knight 1956
+
G. †Alanstukella Mazaev 2020
G. †Keeneia Etheridge 1902
G. †Paraplatyschisma Waterhouse 1983
+
G. †Tylozone Linsley 1968
+
Tylozone commensurata Linsley 1968
Tylozone turricula Linsley 1968
Invalid names: Pithodeidae Wenz 1938 [synonym]
Superfm. †Platyceratacea Hall 1859
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Fm. †Craspedostomatidae Wenz 1938
Fm. †Platyceratidae Hall 1859
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G. †Basiplanus Heidelberger 2001
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Basiplanus baldus Heidelberger 2001
G. †Brokenriveria Cook and Camilleri 1997
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Brokenriveria caelatus Goldfuss 1844
Brokenriveria caleata Goldfuss 1844
Brokenriveria pharlapensis Cook and Camilleri 1997
Brokenriveria virginensis Cook et al. 2003
G. †Compsonema Gordon and Yochelson 1983
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Compsonema fragile Gordon and Yochelson 1983
G. †Dyeria Ulrich and Scofield 1897
G. †Globulonema Frýda and Bandel 1997
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Globulonema globosum Horný 1992
G. †Lotzia Heidelberger 2001
+
Lotzia neglecta Phillips 1841
Lotzia schaeferkalki Heidelberger 2001
G. †Naticonoda Heidelberger 2001
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Naticonoda elegans Heidelberger 2001
Naticonoda prieuri Heidelberger 2001
G. †Natirhenia Heidelberger 2001
+
Natirhenia margaritifera d’Archiac and de Verneuil 1842
G. †Paffrathia Frýda 2000
+
Paffrathia aarica Heidelberger 2001
Paffrathia lotzi Frýda 1998
G. †Palaeocapulus Grabau and Shimer 1909
+
+
Invalid names: Palaeocapulus lodiensis Meek 1871 [synonym]
Palaeocapulus morsei Hoare 2004
Palaeocapulus piso Walcott 1884
Palaeocapulus trigonus Goldfuss 1844
Palaeocapulus undata Winchell 1865
G. †Platyostoma Conrad 1842
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Platyostoma adstrictum Lindström 1884
Platyostoma allardycei Clarke 1913
Platyostoma antiquuis Webster 1905
Platyostoma boggsi Rohr et al. 1981
Platyostoma cliftonensis Foerste 1909
Platyostoma cornutum Hisinger 1837
Platyostoma daytonense Foerste 1923
Platyostoma deforme Sedgwick and Murchison 1840
Platyostoma delicata Talent and Philip 1956
Platyostoma desmatum Clarke 1904
Platyostoma gebhardi Conrad 1840
Platyostoma humilis Clarke and Swartz 1913
Platyostoma humilis Clarke and Swartz 1913
Platyostoma incisum Chapman 1916
Platyostoma insolita Webster 1906
Platyostoma invictus Whidborne 1891
Platyostoma irrasum Fenton and Fenton 1924
Platyostoma lineata Conrad 1842
Platyostoma lutheri Clarke 1904
Platyostoma modesta Webster 1906
Platyostoma muitissima Clarke 1903
Platyostoma naticoides Etheridge, Jr. 1878
Platyostoma pastillus Clarke 1909
Platyostoma perceense Clarke 1908
Platyostoma perforatum Whiteaves 1904
Platyostoma rotundatum Clarke 1904
Platyostoma rowei Clarke and Swartz 1913
Platyostoma speciosum Sedgwick and Murchison 1840
Platyostoma subglobosa Stauffer 1909
Platyostoma triangularis Talent and Philip 1956
Platyostoma tumidum Whiteaves 1892
Platyostoma turbinata Hall 1861
Platyostoma unisulcata Conrad 1842
Platyostoma ventricosum Conrad 1842
G. †Platyschisma M'Coy 1844
+
Platyschisma depressa Weller 1900
Platyschisma helicoides Sowerby 1826
Platyschisma infima Perner 1903
Platyschisma laudoni Rollins 1975
Platyschisma lingua Yoo 1994
Platyschisma vitrea Yoo 1994
G. †Ploconema Perner 1903
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Ploconema bohemicum Perner 1903
Ploconema protendens Perner 1903
G. †Rhabdocantha Fletcher 1958
G. †Spiranodus Heidelberger 2001
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Spiranodus devonica Whidborne 1889
Spiranodus quadrilineatus Heidelberger 2001
Spiranodus quinquecinctus Goldfuss 1844
G. †Spironemella Waterhouse 1980
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Spironemella turgida Waterhouse 1987
G. †Strotostoma Fletcher 1958
Invalid names: Pseudorthonychiinae Bandel and Frýda 1999 [empty]
Subfm. †Anomphalinae Wenz 1938
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G. †Antirotella Cossmann 1918
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Antirotella helicinaeformis von Schlotheim 1820
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Invalid names: Antirotella helicina Münster 1840 [synonym], Antirotella michiganensis Radabaugh 1942 [synonym], Antirotella wurmii Römer 1843 [synonym]
Antirotella kindlei Fenton and Fenton 1924
Antirotella pajelli Cook 1997
Antirotella unica Heidelberger 2001
G. †Eiselia Dietz 1911
G. †Frydacosta Cook and Nützel 2005
G. †Straparella Fischer 1885
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Straparella placidus de Koninck 1881
Straparella striatus Mazaev 1997
Straparella umbilicata Batten 1966
G. †Turbinilopsis de Koninck 1881
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G. †Nodoloxonema Blodgett et al. 1999
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Nodoloxonema ingens Frech 1894
Nodoloxonema plusquelleci Blodgett et al. 1999
Nodoloxonema ruginosum de Koninck 1881
Fm. †Loxonematidae Koken 1889
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G. †Cookiloxa Frýda 2000
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Cookiloxa amleri Heidelberger 2001
Cookiloxa pulchra Frýda 2000
G. †Heideckernema Cook 1998
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Subfm. †Omospirinae Wenz 1938
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G. †Omospira Ulrich and Scofield 1897
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Omospira alexandra Billings 1865
Omospira holtedahli Yochelson 1963
Omospira laticincta Ulrich and Scofield 1897
Omospira trentonensis Ulrich and Scofield 1897
G. †Rhabdostropha Donald 1905
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Rhabdostropha cancellata de Sowerby and Murchison 1839
Rhabdostropha grindrodii Donald 1905
Rhabdostropha latisinuata Longstaff 1924
Rhabdostropha leijiatunensis Xi and Yu 1990
Rhabdostropha minuta Lindström 1884
Rhabdostropha obscura Donald 1902
Rhabdostropha primitiva Longstaff 1924
Rhabdostropha stokei Longstaff 1909
Invalid names: Kjerulfonema Peel and Yochelson 1976 [synonym]
G. †Spiroecus Longstaff 1924
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Spiroecus excavata Longstaff 1924
Spiroecus girvanensis Longstaff 1924
Invalid names: Girvania Longstaff 1924 [synonym]
Fm. †Palaeozygopleuridae Horný 1955
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G. †Alaskozygopleura Blodgett 1992
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Alaskozygopleura eifelia Heidelberger and Bandel 1999
Alaskozygopleura gracillium Whiteaves 1892
Alaskozygopleura hainensis Heidelberger 2001
G. †Bohemozyga Frýda and Bandel 1997
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Bohemozyga kettneri Horný 1955
G. †Bojozyga Horný 1955
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Bojozyga mira Horný 1955
Bojozyga parallela Horný 1955
G. †Hainanema Heidelberger 2001
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Hainanema tornatum Maurer 1885
G. †Heteroloxonema Frýda 2000
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G. †Hornyzyga Cook 1995
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Hornyzyga altacostatum Tassell 1982
Hornyzyga camilleriae Cook 1995
G. †Rhenozyga Frýda 2000
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Rhenozyga reifenstuhli Frýda and Blodgett 2004
Rhenozyga retrostriatum Kirchner 1915
Rhenozyga spiraglobosum Kirchner 1915
G. †Parahormotomina Blodgett et al. 1999
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Parahormotomina sibertae Blodgett et al. 1999
Fm. †Hormotomidae Wenz 1938
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G. †Catazone Perner 1907
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Catazone apate Perner 1907
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Invalid names: Murchisonia (Catazone) fraterna Perner 1907 [synonym]
Catazone argolis Perner 1907
Catazone boylei Nicholson 1875
Catazone cingulata Hisinger 1829
Catazone compressa Lindström 1884
Catazone cuneus Perner 1907
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Invalid names: Murchisonia (Catazone) simulans Perner 1907 [synonym]
Catazone demidoffi Murchison et al. 1845
Catazone egregium Billings 1874
Catazone eversolensis Stauffer 1909
Catazone latona Perner 1907
+
Invalid names: Catazone coarctata Perner 1907 [synonym]
Catazone nevadana Blodgett and Johnson 1992
Catazone podolica Wenjukov 1899
Catazone robustula Perner 1907
Catazone styloidea Perner 1907
G. †Coelocaulus Oehlert and Oehlert 1888
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Coelocaulus alceste Perner 1907
Coelocaulus clavata Perner 1907
Coelocaulus columna Perner 1907
Coelocaulus cybele Perner 1907
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Invalid names: Coelocaulus considerata Perner 1907 [synonym], Coelocaulus crispa Perner 1907 [synonym], Coelocaulus mamillaris Perner 1907 [synonym]
Coelocaulus davidsoni Oehlert 1877
Coelocaulus decipiens Perner 1907
Coelocaulus fugitiva Perner 1903
Coelocaulus karlae Rohr et al. 2003
Coelocaulus lebescontei Oehlert and Oehlert 1888
Coelocaulus perlonga Perner 1907
Coelocaulus pollens Perner 1907
Coelocaulus sana Perner 1907
Coelocaulus strebloceras Clarke 1907
Coelocaulus zonaria Perner 1907
G. †Diplozone Perner 1907
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Diplozone attava Perner 1907
Diplozone innocens Perner 1907
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Invalid names: Diplozone redux Perner 1907 [synonym]
Diplozone retusa Perner 1907
Diplozone zeuneri Roemer 1852
Invalid names: Branzovya Horný 1994 [synonym]
G. †Gyrodoma Etheridge 1898
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Gyrodoma etheridgei Cresswell 1893
Gyrodoma marylandica Clarke and Swartz 1913
G. †Hormotoma Salter 1859
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Hormotoma amii McLearn 1924
Hormotoma bilineata Flower 1968
Hormotoma centervillensis Foerste 1923
Hormotoma cotterensis Cullison 1944
Hormotoma doquieri Grabau 1922
Hormotoma dubia Donald 1899
Hormotoma gracillima Murchison 1859
Hormotoma grayiana Donald 1899
Hormotoma inceptor Longstaff 1909
Hormotoma nigra Longstaff 1924
Hormotoma oehlerti Ulrich and Scofield 1897
Hormotoma simplex Wilson 1932
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Invalid names: Hormotoma infrequens Billings 1859 [synonym]
Hormotoma subulata Conrad 1842
Hormotoma wilsoni Okulitch 1935
G. †Hormotomina Grabau and Shimer 1909
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Hormotomina fiacrensis Blodgett et al. 1999
Hormotomina linsleyi Fagerstrom 1961
Hormotomina maia Hall 1861
Hormotomina penduliobesa Linsley 1968
G. †Medfracaulus Rohr et al. 2003
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Medfracaulus contracta Perner 1907
Medfracaulus cooki Rohr et al. 2003
G. †Ptychocaulus Perner 1907
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Ptychocaulus crumena Perner 1907
Ptychocaulus magna Karczewski 1980
Ptychocaulus rodneyi Rohr 1980
Ptychocaulus verneuili Koken 1889
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Invalid names: Ptychocaulus approximans Perner 1907 [synonym], Ptychocaulus brevicona Perner 1907 [synonym]
Superfm. †Murchisonioidea Koken 1896
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Fm. †Murchisoniidae Koken 1896
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G. †Anarconcha Horný 1964
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Anarconcha pulchra Perner 1903
G. †Barroisocaulus Gubanov et al. 1995
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Barroisocaulus asiatica Gubanov et al. 1995
Barroisocaulus davyi Barrois 1889
Barroisocaulus kayseri Spitz 1907
Barroisocaulus oliveri Gubanov et al. 1995
G. †Cyrtostropha Donald 1902
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Cyrtostropha bicincta M'Coy 1844
Cyrtostropha cava Lindström 1884
Cyrtostropha coralli de Sowerby and Murchison 1839
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Invalid names: Cyrtostropha loganii Hall 1852 [synonym]
Cyrtostropha monoliniformis Lindström 1884
Cyrtostropha morinensis Horný 1952
Cyrtostropha obscura Portlock 1843
Cyrtostropha pacifica Perner 1907
Cyrtostropha salteri Ulrich and Scofield 1897
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Cyrtostropha salteri canadensis Ulrich and Scofield 1897
Invalid names: Cyrtostropha fasciata Branson 1909 [synonym]
Cyrtostropha scitula Donald 1902
Cyrtostropha sculpta Perner 1907
Cyrtostropha subplicata Lindström 1884
Cyrtostropha torquata M'Coy 1851
G. †Kaseiella Frýda 1998
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Kaseiella laudabilis Perner 1907
G. †Leptorima Perner 1907
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Leptorima oehlerti Perner 1903
Leptorima townsendii Whiteaves 1895
G. †Micheliopsis Termier and Termier 1977
G. †Morania Horný 1953
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Morania altevittata Spitz 1907
Morania attenuatum Lindström 1884
Morania boltoni Peel 1975
Morania declivis Perner 1903
Morania griffithi Donald 1899
Morania paradoxa Lindström 1884
Invalid names: Wenziella Frýda 1998 [synonym]
G. †Murchisonia d'Archiac and de Verneuil 1841
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Murchisonia aciculata Hall 1860
Murchisonia akidota Linsley 1968
Murchisonia allevata Perner 1907
Murchisonia anderdoniae Linsley 1968
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Invalid names: Murchisonia tricarinata Sherzer and Grabau 1910 [replaced]
Murchisonia anglica d'Orbigny 1850
Murchisonia angustetaeniata Paeckelmann 1922
Murchisonia arctica Tolmachoff 1930
Murchisonia auctor Mawson et al. 2002
Murchisonia basalestriata Heidelberger 2001
Murchisonia bassensis Tassell 1978
Murchisonia bilineata Dechen 1832
Murchisonia cambria Donald 1905
Murchisonia concava Spitz 1907
Murchisonia deflexa Lindström 1884
Murchisonia defrancei d’Archiac and de Verneuil 1842
Murchisonia delagei Munier-Chalmas 1876
Murchisonia deludisubzona Linsley 1968
Murchisonia dornapica Heidelberger and Amler 2002
Murchisonia dowlingii Whiteaves 1892
Murchisonia dublinensis Stauffer 1909
Murchisonia dudleyensis Donald 1902
Murchisonia elegans Sollas 1879
Murchisonia gourvenneci Blodgett et al. 2003
Murchisonia gracilicrista Linsley 1968
Murchisonia gracilis Goldfuss 1844
Murchisonia hebe Billings 1874
Murchisonia hercynica Römer 1843
Murchisonia holynensis Frýda and Manda 1997
Murchisonia jackjelli Cook 1997
Murchisonia kanekoi Kase and Nishida 1986
Murchisonia kirchnera Heidelberger 2001
Murchisonia laphami Hall 1860
Murchisonia lawlessi Cook and Camilleri 1997
Murchisonia leda Hall 1861
Murchisonia lochkoviensis Frýda and Manda 1997
Murchisonia lohrheimi Heidelberger 2001
Murchisonia megathanae Blodgett and Johnson 1992
Murchisonia micula Miller 1877
Murchisonia minuta Grabau and Sherzer 1910
Murchisonia nerinea Sandberger and Sandberger 1855
Murchisonia obtusangula Lindström 1884
Murchisonia pagodeformis Kirchner 1915
Murchisonia petila Hall and Whitfield 1872
Murchisonia plumleyi Blodgett 1992
Murchisonia pragensis Frýda and Manda 1997
Murchisonia pritchardi Etheridge 1898
Murchisonia reverdyi Oehlert 1877
Murchisonia rotundata Spitz 1907
Murchisonia sandbergeri Paeckelmann 1922
Murchisonia selenalta Heidelberger 2001
Murchisonia sibleyensis Linsley 1968
Murchisonia similis Trenkner 1868
Murchisonia subcarinata Sherzer and Grabau 1910
Murchisonia subornata de Koninck 1883
Murchisonia subulata Conrad 1842
Murchisonia taltiensis Tschernischeff 1893
Murchisonia tillesae Blodgett and Johnson 1992
Murchisonia tricincta d’Archiac and de Verneuil 1842
Murchisonia trilineata Sandberger and Sandberger 1854
Murchisonia turriformis Grünberg 1927
Murchisonia turris de Koninck 1876
Murchisonia vicariana Whidborne 1892
Murchisonia vincta Hall 1856
Murchisonia wandovalensis Cook and Camilleri 1997
G. †Asgardaspira Wagner 1999
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Asgardaspira evolvens Koken 1897
Asgardaspira gerulus Rohr 1993
Asgardaspira norvegica Koken and Perner 1925
Asgardaspira potteri Rohr 1988
Asgardaspira rectangularis Kobayashi 1959
Fm. †Ophiletidae Knight 1956
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G. †Ozarkina Ulrich et al. 1931
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Ozarkina complanata Ulrich et al. 1931
Ozarkina typica Ulrich et al. 1931
G. †Limburgia Heidelberger 2001
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Limburgia lindensis Heidelberger 2001
Limburgia squamiferus d’Archiac and de Verneuil 1842
G. †Devonocerithioides Heidelberger 2001
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Devonocerithioides gracilis Heidelberger 2001
G. †Scoliostomina Heidelberger 2001
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Scoliostomina conoideum Sandberger and Sandberger 1854
Scoliostomina gracile Sandberger and Sandberger 1854
Scoliostomina layensis Heidelberger 2001
G. †Turridina Heidelberger 2001
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Turridina margarita Whidborne 1892
Subfm. †Gosseletininae Wenz 1938
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G. †Ambozone Batten 1972
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Ambozone haydeniana Geinitz 1866
Ambozone obscura Dickins 1963
Ambozone peoriensis Worthen 1884
G. †Angyomphalus Cossmann 1915
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Angyomphalus excavatus Easton 1962
Angyomphalus junior de Koninck 1881
Angyomphalus junius Whidborne 1892
Angyomphalus kentuckiensis Thein and Nitecki 1974
G. †Arizonella Stoyanow 1948
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Arizonella allecta Stoyanow 1948
G. †Breizospira Blodgett et al. 1999
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Breizospira crozonensis Blodgett et al. 1999
Breizospira hagenensis Heidelberger and Koch 2005
G. †Callistadia Knight 1945
G. †Calvibembexia Blodgett et al. 1999
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Calvibembexia lethiersi Blodgett et al. 1999
G. †Campbellospira Yoo 1994
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G. †Champernownia Heidelberger 2001
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Champernownia champernowni Whidborne 1892
Champernownia multispira Sandberger and Sandberger 1854
Champernownia wagneri Heidelberger 2001
G. †Chlupacispira Blodgett and Rohr 1989
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Chlupacispira spinosa Blodgett and Rohr 1989
Invalid names: Frillbeastia Cook and Camilleri 1997 [synonym]
Tr. †Deseretospirides Gordon and Yochelson 1987
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G. †Deseretospira Gordon and Yochelson 1987
G. †Platyteichum Campbell 1953
G. †Devonorhineoderma Heidelberger 2001
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Devonorhineoderma bandeli Heidelberger 2001
Devonorhineoderma impendens Sedgwick and Murchison 1840
Devonorhineoderma kaulensis Heidelberger 2003
Devonorhineoderma lonsdalei d’Archiac and de Verneuil 1842
Devonorhineoderma orbignyana d’Archiac and de Verneuil 1842
Devonorhineoderma striata Tolmachoff 1930
Devonorhineoderma tricincta Goldfuss 1844
G. †Dictyobembix Tyler 1965
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Dictyobembix aspera Sedgwick and Murchison 1840
Dictyobembix bella Tyler 1965
Dictyobembix hebe Hall 1861
G. †Dictyotomaria Knight 1945
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Dictyotomaria capillaria Conrad 1842
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Invalid names: Dictyotomaria procteri Nettelroth 1889 [synonym]
Dictyotomaria concinna Hoare et al. 1997
Dictyotomaria decora Hoare et al. 1997
Dictyotomaria depressus Weller 1916
Dictyotomaria ella Hall 1876
Dictyotomaria eurocapillaria Amler and Heidelberger 2003
Dictyotomaria faceta Hoare et al. 1997
Dictyotomaria hisingeri Goldfuss 1844
Dictyotomaria itylus Clarke 1904
Dictyotomaria meekana Hall 1856
Dictyotomaria nyi Thein and Nitecki 1974
Dictyotomaria scitula Meek and Worthen 1860
Dictyotomaria wortheni Weller 1916
Dictyotomaria yochelsoni Thein and Nitecki 1974
G. †Ehlersina Linsley 1968
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Ehlersina abditinoda Linsley 1968
Ehlersina paucinodosa Linsley 1968
G. †Eoangyomphalus Blodgett and Johnson 1992
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Eoangyomphalus arctica Blodgett and Johnson 1992
Eoangyomphalus klapperi Blodgett and Johnson 1992
Eoangyomphalus peneglabra Rollins et al. 1971
Eoangyomphalus weyanti Blodgett et al. 1999
G. †Fridolinata Heidelberger 2001
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Fridolinata planannulata Sandberger and Sandberger 1853
G. †Genuspira Tyler 1965
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Genuspira nodosa Tyler 1965
Subtr. †Glabrocingulides Gordon and Yochelson 1987
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G. †Abylea Sturgeon 1964
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Abylea formosa Hoare et al. 1997
Abylea insolitus Hoare et al. 1997
Abylea minuta Sturgeon 1964
Abylea paradoxus Hoare et al. 1997
G. †Ananias Knight 1945
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Ananias conglobata Wanner 1922
Ananias marcouiana Geinitz 1866
Ananias nana Yin 1932
Ananias nevadensis Walcott 1884
Ananias nodocostatus Hoare 1961
Ananias talpaensis Kues and Batten 2001
Invalid names: Ootomaria Batten 1973 [synonym]
G. †Baylea de Koninck 1881
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Baylea coheni Yochelson 1962
Baylea delawarensis Girty 1908
Baylea durga Waagen 1880
Baylea giffordi Worthen 1884
Baylea inclinata Weller 1929
+
Invalid names: Baylea ornatiformis Morningstar 1922 [synonym]
Baylea kuesi Batten 1995
Baylea minuta Weller 1916
Baylea parva Thomas 1940
Baylea salomonensis Gemmellaro 1889
Baylea sinuatus Weller 1916
Baylea spirolirata Batten 1966
Baylea subconstricta Meek and Worthen 1860
Baylea tabulata Phillips 1836
Baylea teicherti Cook et al. 2003
Baylea trifibra Rollins 1975
Baylea verneuili Heidelberger 2001
Baylea yvanii Léveillé 1835
G. †Bradyospira Batten 1964
+
Bradyospira antrina von Schlotheim 1816
Bradyospira demissa Swart 1998
Bradyospira maitlandi Etheridge Jr. 1903
Bradyospira talboti Dickins 1963
G. †Glabrocingulum Thomas 1940
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Glabrocingulum angulosa Rollins 1975
Glabrocingulum atomarium Phillips 1836
Glabrocingulum beedei Mark 1912
Glabrocingulum binodosum Sadlick and Nielsen 1963
Glabrocingulum chesterensis Thein and Nitecki 1974
Glabrocingulum coronatum Chronic 1952
Glabrocingulum ellenae Conkin 1957
Glabrocingulum globosum Kues and Batten 2001
Glabrocingulum grayvillense Norwood and Pratten 1855
Glabrocingulum minutum Rollins 1975
Glabrocingulum quadrigatum Sadlick and Nielsen 1963
Glabrocingulum texanum Batten 1989
Glabrocingulum wannense Newell 1935
G. †Hypselentoma Weller 1929
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G. †Lacunospira Batten 1958
G. †Mourlonopsis Fletcher 1958
+
G. †Nipponomaria Asato and Kase 2016
G. †Pandospira Waterhouse 1963
G. †Plocostoma Gemmellaro 1889
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Plocostoma josephinia Gemmellaro 1889
Plocostoma neumayri Gemmellaro 1889
Plocostoma piazzii Gemmellaro 1889
G. †Pseudobaylea Dickins 1963
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Pseudobaylea freneyensis Dickins 1963
Pseudobaylea nuda Dana 1847
Pseudobaylea poperimensis Maxwell 1964
G. †Shwedagonia Batten 1956
G. †Sokella Mazaev 2017
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Sokella levis Dietz 1911
Sokella nemdaensis Mazaev 2015
Sokella subpenea Netchaev 1894
G. †Spiraculinella Waterhouse 1987
G. †Stenozone Batten 1972
+
Stenozone biondii Gemmellaro 1889
Stenozone orientalis Roemer 1880
G. †Woolnoughia Dickins 1963 [Mourlonia]
G. †Glyptotomaria Knight 1945
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Glyptotomaria ciliata Clarke 1904
Glyptotomaria coheni Gemmellaro 1889
Glyptotomaria genundewa Clarke 1904
G. †Guizhouspira Wang 1980
+
Invalid names: Zhonghuaspira Pan and Erwin 2002 [objective synonym]
G. †Kozelconcha Frýda 1998
+
Kozelconcha convolvens Perner 1907
Kozelconcha gryphoides Perner 1907
Kozelconcha lipara Perner 1907
Kozelconcha obesa Perner 1903
+
Invalid names: Kozelconcha pisum Perner 1907 [synonym], Kozelconcha virgulata Perner 1907 [synonym]
G. †Lentipleura Heidelberger 2001
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Lentipleura klippsteinii Goldfuss 1844
G. †Naticasinus Pan and Erwin 2002
G. †Paffratholoron Frýda 2000
+
Paffratholoron goldfussi Frýda 2000
Tr. †Ptychomphalides Wenz 1938
+
G. †Nordospira Yochelson 1966
G. †Pernotrochus Chronic 1952
G. †Vesperispira Yancey et al. 2000
G. †Spiroraphe Perner 1903
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Spiroraphe aequilatera Wahlenberg 1821
Spiroraphe bohemica Perner 1907
+
Invalid names: Spiroraphe amica Perner 1907 [synonym], Spiroraphe ventricosa Perner 1907 [synonym]
Spiroraphe cryptata Billings 1866
Spiroraphe galtensis Billings 1865
Spiroraphe pollens Perner 1903
+
Invalid names: Spiroraphe ambigena Perner 1907 [synonym]
Spiroraphe putillus Northrop 1939
Spiroraphe shelvensis Pitcher 1939
G. †Spirovallum Waterhouse 1963
G. †Stenoloron Oehlert and Oehlert 1888
+
Stenoloron angulifer Lindström 1884
Stenoloron areyi Clarke and Ruedemann 1903
Stenoloron delia Billings 1874
+
Invalid names: Stenoloron lydia Billings 1874 [synonym]
Stenoloron devonica Tolmachoff 1930
Stenoloron fasciata Linsley 1968
Stenoloron linnarssoni Lindström 1884
Stenoloron minor Blodgett and Johnson 1992
Stenoloron subaequilatera Chapman 1916
Stenoloron subglobosa Tassell 1982
Stenoloron sulcatula Perner 1903
Stenoloron swallovana Hall 1856
Stenoloron viennayi Oehlert and Oehlert 1888
G. †Trepospira Ulrich and Scofield 1897
+
Trepospira illinoisensis Worthen 1884
Trepospira sphaerulata Conrad 1842
G. †Umbotropis Perner 1903
+
Umbotropis albicans Perner 1903
Umbotropis disciformis Tschernischeff 1885
Umbotropis filitexta Foerste 1893
Umbotropis kokeni Koken 1889
Umbotropis mesoni Tassell 1982
Umbotropis rihai Frýda and Bandel 1997
Umbotropis suburbana Perner 1903
Umbotropis telleri Frech 1894
Invalid names: Eocryptaulina Foerste 1936 [synonym]
G. †Westralospira Cook et al. 2003
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Westralospira dickinsi Cook et al. 2003
G. †Whidbornia Heidelberger 2001
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Whidbornia trochoides Whidborne 1889
G. †Zlichomphalina Frýda 1998
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Zlichomphalina texta Perner 1907
Subcl. Heterostropha Fischer 1885
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Invalid names: Heterobranchia Gray 1840 [synonym]
Fm. †Pseudophoridae Miller 1889
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Subfm. †Decorospirinae Blodgett and Frýda 1999
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G. †Roemeriella Blodgett and Frýda 1999
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Roemeriella alticonus Cook et al. 2003
Roemeriella octocinctus Römer 1843
G. †Devonoconica Heidelberger 2001
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Devonoconica colorata Heidelberger 2001
Devonoconica undullaria Heidelberger 2001
G. †Kowalatrochus Krawczyński 2002
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Kowalatrochus sanctacrucensis Krawczyński 2002
G. †Pagodea Perner 1903
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Pagodea concomitans Perner 1903
Pagodea falcatinoda Linsley 1968
Pagodea jurkovicensis Karczewski 1989
Pagodea valentica Pitcher 1939
G. †Protocalyptraea Clarke 1894
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Protocalyptraea beecheri Clarke 1894
Subfm. †Pseudophorinae Miller 1889
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G. †Dentanitella Heidelberger 2001
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Dentanitella obtusa Heidelberger 2001
G. †Rotellomphalus Perner 1903
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Rotellomphalus tardus Perner 1903
Invalid names: Eoeiselia Frýda and Bandel 1997 [synonym]
G. †Sallya Yochelson 1956
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Sallya bicincta Yochelson 1956
Sallya linsa Yochelson 1956
Sallya lirata Chronic 1952
G. †Shedhornia Kulas and Batten 1997
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Shedhornia ornata Kulas and Batten 1997
G. †Yochelsonatia Mawson et al. 2002
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Yochelsonatia resticula Mawson et al. 2002
G. †Yukonoconcha Frýda et al. 2002
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Yukonoconcha pedderi Frýda et al. 2002
G. †Eoscoliostoma Frýda et al. 2002
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Eoscoliostoma norrisi Frýda et al. 2002
G. †Mitchellia de Koninck 1876
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Mitchellia striatula de Koninck 1876
G. †Pseudomitchellia Frýda et al. 2002
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Pseudomitchellia macqueeni Frýda et al. 2002
Subfm. †Liospirinae Knight 1956
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G. †Pseudocryptaenia Koken and Perner 1925
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Pseudocryptaenia majewskwi Rohr and Blodgett 1985
G. †Pseudocryptaulina Koken and Perner 1925
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Fm. †Luciellidae Knight 1956
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G. †Crenulazona Linsley 1968
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Crenulazona angulata Linsley 1968
Crenulazona wuxuanensis Cook and Pan 2004
G. †Playfordia Cook et al. 2003
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Playfordia australis Cook et al. 2003
G. †Zhusilengospira Pan and Cook 2003
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Zhusilengospira compactum Pan and Cook 2003
Zhusilengospira turbiniformis Pan and Cook 2003
Hippocardia cunea Conrad 1840
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Invalid names: Hippocardia attenuata Conrad 1842 [synonym]
G. †Apotocardium Hoare et al. 2002
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Apotocardium cordatum Hoare et al. 1982
Apotocardium lanterna Branson 1965
Apotocardium obliquum Meek and Worthen 1875
Apotocardium peculiare Girty 1910
Apotocardium plautum Hoare et al. 2002
Apotocardium polymitarium Hoare et al. 1982
Apotocardium pomachacanum Chronic 1949
Apotocardium snideri Morgan 1924
Fm. †Bransoniidae Pojeta and Runnegar 1976
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G. †Eusphairica Hoare 2000
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Eusphairica distubula Hoare 2000
Loxoplocus gotlandicus Ulrich and Scofield 1897
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Invalid names: Loxoplocus bispiralis Clarke and Ruedemann 1903 [synonym]
Fm. †Pseudobigaleaidae Hoare et al. 2002
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G. †Bitrigonocardia Rogalla and Amler 2006
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Bitrigonocardia elegantula Billings 1866
Bitrigonocardia isbergi Branson 1942
G. †Baiosoma Hoare et al. 2002
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Baiosoma batilia Hoare et al. 1982
Baiosoma cucullata Hoare et al. 1988
Baiosoma pala Hoare et al. 1988
Invalid names: Exalloschema Hoare et al. 2002 [synonym]
G. †Hadropipetta Hoare et al. 2002
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Hadropipetta ancora Hoare et al. 1988
Hadropipetta nevadensis Hoare and Plas 2003
G. †Oxyprora Hoare et al. 2002
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Oxyprora carinatum Hall 1856
Oxyprora digitatum Branson 1942
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Invalid names: Oxyprora irregulare de Koninck 1844 [replaced]
Oxyprora mesialis Weller 1916
Oxyprora oklahomaense Beede 1902
Oxyprora sayrei Elias 1957
Fm. †Conocardiidae Miller 1889
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G. †Minycardita Hoare and Plas 2003
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Minycardita sectilis Hoare and Plas 2003
Fm. †Carinaropsidae Ulrich and Scofield 1897
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Subfm. †Carinaropsinae Ulrich and Scofield 1897
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G. †Phragmosphaera Knight 1945
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Phragmosphaera diopetes Clarke 1907
Phragmosphaera expansus de Sowerby and Murchison 1839
Phragmosphaera globata Murchison 1839
Phragmosphaera incisus Clarke 1885
Phragmosphaera ithagenia Clarke 1904
Phragmosphaera lyra Hall 1859
Phragmosphaera nitela Clarke 1909
Phragmosphaera ponceti Blodgett et al. 1999
Phragmosphaera victoriae Chapman 1916
G. †Barrandicella Peel and Horný 1999
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Barrandicella holubi Horný 2000
Barrandicella ovata Perner 1903
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Invalid names: Barrandicella complanata Perner 1903 [synonym]
Fm. †Subulitidae Lindström 1884
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G. †Fusispira Hall 1872
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Fusispira angusta Ulrich and Scofield 1897
Fusispira bullatus Koken 1897
Fusispira convexa Ulrich and Scofield 1897
Fusispira daphne Billings 1865
Fusispira elongata Hall 1872
Fusispira gigantea Wilson 1938
Fusispira inflata Meek and Worthen 1870
Fusispira intermedia Ulrich and Scofield 1897
Fusispira nobilis Ulrich and Scofield 1897
Fusispira obesus Whitfield 1886
Fusispira planulata Ulrich and Scofield 1897
Fusispira psyche Billings 1865
Fusispira schucherti Ulrich and Scofield 1897
Fusispira subbrevis Ulrich and Scofield 1897
Fusispira sulcata Ulrich and Scofield 1897
Fusispira tsuchidai Endo 1935
G. †Imogloba Nützel et al. 2000
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Imogloba gandyensis Gordon and Yochelson 1987
Superor. †Caenogastropoda Cox 1959
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G. †Carinomphalus Yu 1974
G. †Cassianozyga Bandel 1991
G. †Loxotomella Böhm 1895
Fm. †Meekospiridae Knight 1936
G. †Chlorozyga Nützel and Cook 2002
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G. †Globobulimorpha Yoo 1994
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Fm. †Holopeidae Wenz 1938
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G. †Eopagodea Frýda et al. 2001
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Eopagodea sevillana Frýda et al. 2001
G. †Raphistomina Ulrich and Scofield 1897
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Raphistomina agave Billings 1865
Raphistomina aperta Salter 1859
Raphistomina barbouri Grabau 1922
Raphistomina fissurata Steele and Sinclair 1971
Raphistomina hortensia Billings 1865
Raphistomina lapicida Salter 1859
Raphistomina lenticulare Emmons 1842
Raphistomina rugata Ulrich and Scofield 1897
Raphistomina tasmanica Johnston 1888
Fm. †Cyrtolitidae Miller 1889
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G. †Cloudia Knight 1947
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Cloudia buttsi Knight 1947
G. †Paracyrtolites Wahlman 1992
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Paracyrtolites carinatus Miller 1874
Paracyrtolites parvus Ulrich and Scofield 1897
Paracyrtolites subplanus Ulrich and Scofield 1897
G. †Sinuella Knight 1947
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Sinuella minuta Knight 1947
G. †Telamocornu Berg-Madsen and Peel 1994
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Subfm. †Sinuitinae Dall 1913
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G. †Branzovodiscus Frýda 1999
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Branzovodiscus bajae Frýda 1999
G. †Hispanosinuites Fryda and Gutierrez-Marco 1996
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Hispanosinuites peeli Fryda and Gutierrez-Marco 1996
G. †Modestospira Yochelson 1964
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Modestospira kochiriensis Kobayashi 1930
Modestospira perturbatus Murchison 1839
Modestospira poulseni Yochelson 1964
G. †Selesinuites Horný 1997
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Selesinuites perneri Horný 1997
Invalid names: Hispanosinuitinae Fryda and Gutierrez-Marco 1996 [synonym]
Superfm. †Trochonematacea von Zittel 1895
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Invalid names: Lophospiroidea Wenz 1938 [objective synonym]
G. †Maclurina Ulrich and Scofield 1897
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Maclurina bigsbyi Hall 1861
Maclurina comes Perner 1903
Maclurina logani Salter 1852
Maclurina manitobensis Whiteaves 1890
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Invalid names: Maclurea subovata Parks 1913 [synonym], Maclurina acutus Parks 1913 [synonym], Maclurina major Troedsson 1928 [synonym]
Maclurina sedgwicki Longstaff 1924
Maclurina serpentrionalis Koken and Perner 1925
G. †Slehoferia Rohr and Frýda 2001
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Slehoferia excavatum Perner 1903
Subfm. †Lophospirinae Wenz 1938
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G. †Batteniella Frýda and Manda 1997
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Batteniella prantli Frýda and Manda 1997
Superfm. †Raphistomatoidea Koken 1896
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Fm. †Raphistomatidae Koken 1896
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G. †Bridgeites Flower 1968
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Bridgeites atlanticus Billings 1865
Bridgeites discoideus Flower 1968
Bridgeites disjuncta Billings 1865
Bridgeites planidorsalis Cullison 1944
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Invalid names: Bridgeites grandis Cullison 1944 [synonym], Bridgeites isabellaensis Cullison 1944 [synonym], Bridgeites magna Cullison 1944 [synonym]
Bridgeites supraconvexa Cullison 1944
Bridgeites volutatus Whitfield 1886
Fm. †Eotomariidae Wenz 1938
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G. †Semizona Ebbestad and Peel 2001
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Semizona bella Ebbestad and Peel 2001
Semizona glindmeyeri Rohr 1996
G. †Turritoma Ulrich and Scofield 1897
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Turritoma acrea Billings 1865
Turritoma ada Billings 1865
G. †Eccyliomphalus Portlock 1843
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Eccyliomphalus intortus Billings 1861
G. †Pagodispira Grabau 1922
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Invalid names: Pagodospira [replaced]
G. Acteon Montfort 1810
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Invalid names: Actaeon Oken 1815 [replaced]
G. †Holopella M'Coy 1851
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Holopella altera Perner 1903
Holopella contraria Perner 1903
Holopella deleta Perner 1903
Holopella dextra Perner 1903
Holopella expandens Perner 1903
Holopella gracilior M'Coy 1851
Holopella jovialis Perner 1903
Holopella modesta Perner 1903
Holopella parvula Perner 1903
Holopella regularis Lindström 1884
Holopella tenera Perner 1903
G. †Palaeoalvania Yoo 1994
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G. †Microcochlis Yoo 1994
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Microcochlis parva Yoo 1994
G. †Kyndalynia Yoo 1994
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Kyndalynia inflata Yoo 1994
G. †Pipadentalium Yoo 1988
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G. †Royalella Bandel 2002
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Royalella minuta Bandel 2002
Royalella swallowiana Geinitz 1866
G. †Yoospira Bandel 2002
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Fm. †Onychochilidae Koken and Perner 1925
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G. †Sinistriconcha Heidelberger and Bandel 1999
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Sinistriconcha lierli Heidelberger and Bandel 1999
Superfm. †Clisospiracea Miller 1889
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Fm. †Clisospiridae Miller 1889
Fm. †Ribeiriidae Kobayashi 1933
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G. †Ribeirina Billings 1865
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Ribeirina longiscula Billings 1865
Fm. †Eopteriidae Miller 1889
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G. †Pseudoeuchasma Kobayashi 1933
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Pseudoeuchasma typica Kobayashi 1933
G. †Kandosoconcha Cook and Camilleri 2001
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Kandosoconcha pembertoni Cook and Camilleri 2001
G. †Avalanchia Caldwell and Chatterton 1995
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Avalanchia pterocarina Caldwell and Chatterton 1995
G. †Redstonia Caldwell and Chatterton 1995
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Redstonia buskasi Johnston and Chatterton 1983
Redstonia cooperi Pojeta and Runnegar 1976
Redstonia tercierae Johnston and Chatterton 1983
Redstonia visbyensis Pojeta and Runnegar 1976
G. †Talacastella Sanchez 1986
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Talacastella herrerai Sanchez 1986
G. †Kuonamkaella Gubanov et al. 2004
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Kuonamkaella oliva Gubanov et al. 2004
G. †Anabaroconus Gubanov et al. 2004
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Anabaroconus sibiricus Gubanov et al. 2004
G. †Domiporta Mawson et al. 2002
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Domiporta laxa Mawson et al. 2002
G. †Perneratia Mawson et al. 2002
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Perneratia aristerospira Mawson et al. 2002
Superor. Vetigastropoda Salvini-Plawen 1980
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G. †Blodgettella Nützel and Erwin 2004
G. †Frydatinus Kiel and Bandel 2004
Or. Pleurotomariida Cox and Knight 1960
Superfm. Pleurotomarioidea Swainson 1840
Superfm. Trochoidea Rafinesque 1815
Invalid names: Trochina Cox and Knight 1960 [empty]
Fm. †Codonocheilidae Miller 1889
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G. †Natiria de Koninck 1881
Subcl. Eogastropoda Ponder and Lindberg 1996
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Invalid names: Euomphalomorpha Bandel and Frýda 1998 [synonym]
Fm. Neritopsidae Gray 1847
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G. †Magnicapitatus Wang 1980
Fm. †Procerithiidae Cossmann 1905
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G. †Bonarelliella Cónsole Gonella 2011
G. †Sinuozyga Batten 1985
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Sinuozyga ajoka Batten 1985
Subfm. †Pseudozygopleurinae Knight 1930
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G. †Plocezyga Knight 1930
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Plocezyga acuminata Hoare and Sturgeon 1980
Plocezyga conica Hoare and Sturgeon 1980
Plocezyga cordiformis Hoare and Sturgeon 1980
Plocezyga corona Knight 1930
Plocezyga costata Mark 1912
Plocezyga delicata Hoare and Sturgeon 1980
Plocezyga excellens Hoare and Sturgeon 1980
Plocezyga intermedia Hoare and Sturgeon 1980
Plocezyga lineata Hoare and Sturgeon 1980
Plocezyga lirata Hoare and Sturgeon 1980
Plocezyga markae Hoare and Sturgeon 1980
Plocezyga obscura Hoare and Sturgeon 1980
Plocezyga ornata Mark 1912
Plocezyga ornatissima Hoare and Sturgeon 1980
Plocezyga percostata Knight 1930
Plocezyga perminuta Hoare and Sturgeon 1980
Plocezyga regularia Hoare and Sturgeon 1980
Plocezyga salomonense Gemmellaro 1889
Plocezyga subnodosa Hoare and Sturgeon 1980
Plocezyga subquadrata Hoare and Sturgeon 1980
Plocezyga tenuilirata Knight 1930
Plocezyga turbinata Hoare and Sturgeon 1980
Fm. †Spirostylidae Cossmann 1909
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G. †Euthystylus Cossmann 1895
Fm. †Zygopleuridae Wenz 1938
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G. †Xizangospira Yu 1975
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Xizangospira multistriata Yu and Wang 1975
G. †Wuxuanella Cook and Pan 2004
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Wuxuanella hibernia Heidelberger 2001
Wuxuanella liufengshanensis Cook and Pan 2004
Wuxuanella nodusa Cook and Pan 2004
Wuxuanella pseudobinodosa Heidelberger 2001
Wuxuanella spinacavus Heidelberger 2001
G. †Pingtianispira Cook and Pan 2004
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Pingtianispira tuberculata Cook and Pan 2004
Subfm. †Eotomariinae Wenz 1938
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G. †Clathrospira Ulrich and Scofield 1897
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Clathrospira amouguerana Horný 1997
Clathrospira conica Ulrich and Scofield 1897
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Invalid names: Clathrospira clivosa Sardeson 1892 [synonym]
Clathrospira euconica Butts 1926
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Invalid names: Clathrospira obsoleta Raymond 1905 [synonym]
Clathrospira hindei Lindström 1884
Clathrospira phaedra Billings 1865
Clathrospira sponsa Billings 1865
Clathrospira trochiformis Portlock 1843
Clathrospira virguncula Billings 1865
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Invalid names: Clathrospira laflinensis Fix 1975 [synonym]
G. †Eocryptaenia Koken and Perner 1925
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Eocryptaenia singularis Koken and Perner 1925
G. †Palaeoschisma Donald 1902
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Palaeoschisma elevata Ulrich and Scofield 1897
Palaeoschisma girvanense Donald 1902
Palaeoschisma globosa Longstaff 1924
Palaeoschisma thraivensis Longstaff 1924
Palaeoschisma ulrichi Endo 1932
G. †Ptychonema Perner 1903
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Ptychonema bussacensis Sharpe 1853
Ptychonema marocanum Horný 1997
G. †Spirotomaria Koken and Perner 1925
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Spirotomaria rudissima Koken 1897
G. †Cancelloplatyceras Cook et al. 2003
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Cancelloplatyceras abowsheri Cook et al. 2003
Subg. †Ruedemannia (Batteniella) Frýda and Manda 1997
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Ruedemannia (Batteniella) calvata Mawson et al. 2002
Subg. †Porcellia (Paraporcellia) Blodgett and Johnson 1992
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Paraporcellia cornuarietis Sandberger and Sandberger 1853
G. †Trepsipleura Kues 2002
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Trepsipleura attenuata Sayre 1930
Trepsipleura nodosa Kues 2002
G. †Bicuerda Kues and Batten 2001
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Bicuerda columnare Erwin 1988
Bicuerda procolumnare Kues and Batten 2001
G. †Homeochiton Hanger et al. 2000
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Homeochiton triangulus Hanger et al. 2000
G. †Arctozone Frýda and Blodgett 2004
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Arctozone cooki Frýda and Blodgett 2004
G. †Farewellia Frýda and Blodgett 2004
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Farewellia heidelbergerae Frýda and Blodgett 2004
G. †Medfrazyga Frýda and Blodgett 2004
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Medfrazyga clauticae Frýda and Blodgett 2004
G. †Kuskokwimia Frýda and Blodgett 2001
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Kuskokwimia moorei Frýda and Blodgett 2001
Subg. †Palaeozygopleura (Rhenozyga) Frýda 2000
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G. †Neimongolidiscus Pan and Cook 2003
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Neimongolidiscus circumumbilicus Pan and Cook 2003
G. †Antigyra Horný 1964
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Antigyra indentata Perner 1907
G. †Petrochus Horný 1992
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Petrochus conica Tyler 1965
Petrochus mellaria Tyler 1965
Petrochus mouchai Horný 1992
Petrochus praecedens Horný 1992
G. †Vladanella Horný 1992
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Vladanella avia Horný 1992
Vladanella enigma Horný 1992
Vladanella lirata Tyler 1965
Vladanella mariannae Horný 1992
G. †Cancellator Horný 1992
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Cancellator belua Horný 1992
Cancellator rohri Frýda and Manda 1997
G. †Obscuropsis Horný 1992
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Obscuropsis perplexa Horný 1992
G. †Hawletrochus Frýda and Bandel 1997
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Hawletrochus pragensis Frýda and Bandel 1997
G. †Blodgettinotus Frýda 1999
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Blodgettinotus ornatus Frýda 1999
G. †Prokopites Frýda 1999
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Prokopites chlupaci Horný 1963
G. †Anuliconus Parkhaev 2001
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Anuliconus tannuelliformis Parkhaev 2004
G. †Miroconulus Parkhaev 2001
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Miroconulus sinitsae Parkhaev 2004
Fm. †Trenellidae Parkhaev 2001
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G. †Mackinnonia Bengtson et al. 1990
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Mackinnonia corrugata Bengtson et al. 1990
G. †Tubatoconus Feng et al. 2000
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Tubatoconus yuluensis Feng et al. 2000
Fm. †Pelagiellidae Knight 1952
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G. †Pelagiella Matthew 1895
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Pelagiella adunca He et al. 1984
Pelagiella atlantoides Mathews 1894
Pelagiella atlasensis Geyer 1986
Pelagiella corinthiana Runnegar and Jell 1976
Pelagiella crassa Geyer 1986
Pelagiella deltoides Runnegar and Jell 1976
Pelagiella escayachensis Kobayashi 1937
Pelagiella lorenzi Kobayashi 1939
Pelagiella madianensis Zhou and Xiao 1984
Pelagiella primaeva Billings 1872
Invalid names: Protoscaevogyra Kobayashi 1939 [synonym]
G. †Coloniacirrus Bandel 1993
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Coloniacirrus bifida Sandberger and Sandberger 1853
Coloniacirrus primordialis von Schlotheim 1820
Coloniacirrus radiatus Goldfuss 1844
G. †Costipelagiella Horný 1964
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Costipelagiella kochi Peel 1988
G. †Hispanoconus Gubanov et al. 2004
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Hispanoconus cordobaensis Gubanov et al. 2004
G. †Guadalquivirospira Gubanov et al. 2004
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Guadalquivirospira carinata Gubanov et al. 2004
G. †Pedrocheotheca Gubanov et al. 2004
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Pedrocheotheca andalusica Gubanov et al. 2004
Cl. †Stenothecoida Yochelson 1969
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Invalid names: Cambridiida Knight and Yochelson 1958 [empty]
Fm. †Cambridiidae Horný 1957
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G. †Stenothecoides Resser 1938
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Stenothecoides dubius Koneva 1979
Stenothecoides elevata Cobbold 1921
Stenothecoides elongata Walcott 1884
Stenothecoides rugosa Walcott 1886
G. †Titanoplina Stinchcomb and Angeli 2002
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Titanoplina merramecensis Stinchcomb and Angeli 2002
G. †Proplina Kobayashi 1933
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Proplina acutum Whitfield 1889
Proplina ampla Kobayashi 1933
Proplina arcua Stinchcomb 1986
Proplina cornutaformis Walcott 1879
Proplina elongata Cullison 1944
Proplina grandis Cullison 1944
Proplina inflatus Stinchcomb 1986
Proplina irvingi Whitfield 1878
Proplina meramecensis Stinchcomb 1986
Proplina rutfordi Webers et al. 1992
Proplina sibelius Stinchcomb 1986
Proplina suttoni Stinchcomb 1986
G. †Potosiplina Stinchcomb and Angeli 2002
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Potosiplina delorensis Stinchcomb and Angeli 2002
G. †Irondalia Stinchcomb and Angeli 2002
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Irondalia irondalensis Stinchcomb and Angeli 2002
G. †Ulrichoconus Stinchcomb and Angeli 2002
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Ulrichoconus bonneterrense Stinchcomb and Angeli 2002
G. †Gayneoconus Stinchcomb and Angeli 2002
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Gayneoconus echolsi Stinchcomb and Angeli 2002
G. †Capitoconus Skovsted 2004
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Capitoconus artus Skovsted 2004
Capitoconus inclinatus Skovsted 2004
Capitoconus nana Zhou and Xiao 1984
G. †Figurina Parkhaev 2001
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Figurina figurina Parkhaev 2001
Figurina groenlandica Skovsted 2004
Mackinnonia rostrata Zhou and Xiao 1984
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Invalid names: Mackinnonia davidi Bengtson et al. 1990 [synonym]
Fm. †Stenothecidae Runnegar and Jell 1980
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G. †Planutenia Elicki 1994
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Planutenia flectata Elicki 1994
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Invalid names: Planutenia inclinata Elicki 1994 [synonym]
G. †Pseudoscenella Starobogatov and Moskalev 1987
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Pseudoscenella manchurica Kobayashi 1933
Fm. †Yochelcionellidae Runnegar and Jell 1976
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G. †Eotebenna Runnegar and Jell 1976
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Eotebenna arctica Peel 1989
Eotebenna papilio Runnegar and Jell 1976
Eotebenna pontifex Runnegar and Jell 1976
Eotebenna recta Missarzhevsky and Mambetov 1981
Eotebenna viviannae Peel 1991
G. †Yochelcionella Runnegar and Pojeta 1974
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Yochelcionella americana Runnegar and Pojeta 1980
Yochelcionella angustiplicata Hinz-Schallreuter 1997
Yochelcionella crassa Esakova and Zhegallo 1996
Yochelcionella cyrano Runnegar and Pojeta 1974
Yochelcionella daleki Runnegar and Jell 1976
Yochelcionella gracilis Atkins and Peel 2004
Yochelcionella greenlandica Atkins and Peel 2004
Yochelcionella ostentata Runnegar and Jell 1976
Yochelcionella stylifera Missarzhevsky and Mambetov 1981
Aldanella attleborensis Shaler and Foerste 1888
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Invalid names: Aldanella kolymica Barskova 1988 [synonym]
G. †Nettersheimia Heidelberger 2003
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Nettersheimia jungheimi Heidelberger 2003
G. †Rhineoderma de Koninck 1883
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Rhineoderma benediana de Koninck 1883
Rhineoderma dinglensis Girty 1927
Rhineoderma wortheni Hall 1856
G. †Carcassonnella Horný and Peel 1996
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Carcassonnella courtessolei Yochelson 1982
Carcassonnella pragensis Horný 1997
Carcassonnella vizcainoi Horný and Peel 1996
G. †Kosovina Horný 2004
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Kosovina peeli Horný 2004
G. †Trenella Parkhaev 2001
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Trenella bifrons Parkhaev 2001
G. †Horsegullia Parkhaev 2004
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G. †Bensbergia Heidelberger and Koch 2005
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Bensbergia altivolvis Whiteaves 1892
Bensbergia arculata von Schlotheim 1820
Bensbergia drozdzewski Heidelberger and Amler 2002
Bensbergia elongata Phillips 1841
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Invalid names: Bensbergia adpressa Römer 1843 [synonym]
Bensbergia fusoidalis Tolmachoff 1930
Bensbergia pengellii Whidborne 1889
Bensbergia pulchra Fenton and Fenton 1924
Bensbergia schlotheimi d’Archiac and de Verneuil 1842
Bensbergia subcostata von Schlotheim 1820
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Invalid names: Strobeus pulchella Whiteaves 1892 [synonym]
G. †Teutonophon Blodgett and Frýda 1999
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Teutonophon konincki Weir 1931
Teutonophon sinensis Pan and Cook 2003
Teutonophon tangentialis Phillips 1836
Teutonophon umbilicatus Potiez and Michaud 1838
Invalid names: Pseudopharkidonotus Pan and Cook 2003 [synonym]
G. †Nodeuomphalus Bandel and Frýda 1998
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Nodeuomphalus labadyei d’Archiac and de Verneuil 1842
Nodeuomphalus leunissi Heidelberger and Bandel 1999
Nodeuomphalus moniliferus Romanovsky 1890
Nodeuomphalus paffrathianus Bandel and Frýda 1998
Nodeuomphalus peskensis Mazaev 1994
G. †Strothia Heidelberger and Koch 2005
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Strothia schwelmensis Kayser 1878
Subfm. †Paffrathiinae Heidelberger and Koch 2005
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G. †Paffrathopsis Frýda 2000
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Paffrathopsis antiqua Goldfuss 1844
Paffrathopsis harpula Sowerby 1827
Paffrathopsis lirata Sandberger 1842
Paffrathopsis macrostoma Sandberger and Sandberger 1854
Paffrathopsis nana Meek and Worthen 1860
Paffrathopsis subcostata Dechen 1832
G. †Praeturbonitella Heidelberger and Koch 2005
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Praeturbonitella kochi Heidelberger and Koch 2005
Subor. †Neritaemorpha Koken 1897
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Superfm. †Neritoidea Rafinesque 1815
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Fm. †Naticopsidae Meek and Worthen 1866
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G. †Jedria Yochelson 1953
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Jedria deckeri Blodgett 1992
Jedria meeki Knight 1933
Jedria ventrica Norwood and Pratten 1855
G. †Pseudoplagiothyra Vostokova 1961
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Pseudoplagiothyra armatus Goldfuss 1832
Hormotoma salteri Ulrich and Scofield 1897
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Invalid names: Hormotoma groenlandica Troedsson 1928 [synonym]
G. †Diedrorynchus Hoare and Peck 2005
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Diedrorynchus conalatum Branson 1942
Diedrorynchus dictyum Hoare and Peck 2005
G. †Anastrophina Knight 1937
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Anastrophina longior Perner 1907
G. †Kirkospira Rohr and Blodgett 2001
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Kirkospira glacialis Rohr and Blodgett 2001
Kirkospira tongassensis Rohr and Blodgett 2008
Kirkospira vitellia Billings 1865
Invalid names: Baichtalia Rohr and Blodgett 2008 [synonym]
Pararaphistoma qualteriatum von Schlotheim 1820
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Invalid names: Raphistoma aequilaterum Koken 1897 [synonym]
Pleurotomaria etna Billings 1865
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Invalid names: Euconia ramseyi Billings 1859 [synonym]
G. †Palaeomphalus Koken and Perner 1925
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Palaeomphalus glabra Koken and Perner 1925
Palaeomphalus obtusangulus Angelin and Lindström 1880
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Invalid names: Palaeomphalus gradata Koken 1896 [synonym], Palaeomphalus immigrata Koken and Perner 1925 [synonym], Palaeomphalus laminosus Koken 1897 [synonym]
Palaeomphalus olsoni Rohr 1980
G. †Tachillanella Horný 1997
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G. †Kolihadiscus Horný 1992
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Kolihadiscus karlikensis Horný 2005
Kolihadiscus somerseti Williams and Breger 1916
Kolihadiscus tureki Horný 1992
G. †Oriomphalus Horný 1992
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Oriomphalus puellarum Horný 1992
Oriomphalus supralirata Rohr and Smith 1978
G. †Smichovia Frýda and Manda 1997
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Smichovia inepta Frýda and Bandel 1997
G. †Vltaviella Frýda and Manda 1997
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Vltaviella reticulata Frýda and Manda 1997
G. †Eroicaspira Wagner 1999
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Eroicaspira obelisca Whitfield 1886
Eroicaspira simulatrix Billings 1865
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Invalid names: Murchisonia augustina Billings 1865 [synonym]
Eroicaspira zelleri Flower 1968
G. †Balbiniconcha Horný 1992
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Balbiniconcha hebe Hall 1859
Balbiniconcha kosmasi Horný 1992
Balbiniconcha paludinoides Kirchner 1915
G. †Cordaspira Frýda and Bandel 1997
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Cordaspira enigma Frýda and Bandel 1997
G. †Pragoloron Horný 1992
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Pragoloron miser Perner 1907
Pragoloron nummularia Perner 1907
G. †Asinomphalus Horný 1992
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Asinomphalus antiqua Vanuxem 1842
Asinomphalus kettneri Frýda and Bandel 1997
Asinomphalus protoni Tassell 1982
Asinomphalus ruzickai Horný 1992
G. †Pragozyga Frýda 1999
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Pragozyga costata Frýda 1999
Pragozyga jerseyense Weller 1903
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Invalid names: Pragozyga welleriana Williams and Breger 1916 [synonym]
Pragozyga subtilistriata Oehlert 1877
G. †Chuchleconus Frýda 1998
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Chuchleconus mandai Frýda 1998
G. †Chuiliella Gubanov and Peel 2001
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Chuiliella elenae Gubanov and Peel 2001
G. †Laxella Pan and Erwin 2002
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Laxella micra Pan and Erwin 2002
G. †Heshanietta Nützel et al. 2002
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Heshanietta teres Pan and Erwin 2002
Fm. †Orthonemidae Nützel and Bandel 2000
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G. †Donaldospira Batten 1966
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Donaldospira archiaciana de Koninck 1843
Donaldospira malaysia Batten 1985
Donaldospira nodosa Batten 1995
Donaldospira taosensis Kues and Batten 2001
G. †Hypergonia Donald 1892
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Hypergonia agraciada Kues and Batten 2001
Hypergonia attenuata Hall 1856
Hypergonia baldwinensis Thein and Nitecki 1974
Hypergonia deplanata Donald 1895
Hypergonia elongata Yoo 1988
Hypergonia hoffmani Kues and Batten 2001
Hypergonia illinoiensis Weller 1916
Hypergonia kirkbyi Donald 1892
Hypergonia marvinwelleri Thein and Nitecki 1974
Hypergonia mcoyi Donald 1895
Hypergonia percarinata Longstaff 1926
Hypergonia percostata Girty 1939
Hypergonia prolixa White and Whitfield 1862
Hypergonia tatei Donald 1892
Hypergonia tenuis Yoo 1988
Hypergonia turritella Hall 1856
Hypergonia vermicula Hall 1856
Hypergonia youngiana Donald 1895
G. †Leptozyga Knight 1930
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Leptozyga costata Yoo 1994
Leptozyga minuta Knight 1930
Leptozyga venustus Hoare and Sturgeon 1981
G. †Palaeostylus Mansuy 1914
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Palaeostylus acuminatus Goldfuss 1832
Palaeostylus cylindrata Knight 1930
Palaeostylus delpeyae Batten 1985
Palaeostylus pseudozyga Batten 1985
Subg. †Murchisonia (Donaldospira) Batten 1966
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Donaldospira pertusa de Koninck 1883
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Invalid names: Donaldospira angulata Phillips 1836 [replaced]
Donaldospira verneuiliana de Koninck 1844
Hormotoma gracilis Hall 1847
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Invalid names: Archinacella simmonsi Hussey 1926 [synonym]
G. †Ilionia Billings 1874
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Ilionia prisca Hisinger 1837
Fm. †Euomphalidae White 1877
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G. †Acanthonema Sherzer and Grabau 1910
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Acanthonema holopiforme Sherzer and Grabau 1910
Acanthonema newberryi Meek 1871
G. †Alaionema Gubanov et al. 1995
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Alaionema crenulatum Meek 1871
Alaionema kyrgyzensis Gubanov et al. 1995
Alaionema laudabilis Perner 1903
G. †Araeonema Knight 1933
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Araeonema osterholzensis Heidelberger and Amler 2002
Araeonema virgatum Knight 1933
G. †Burdikinia Knight 1937
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Burdikinia axionoides Etheridge, Jr. 1921
Burdikinia burdekinensis Etheridge 1917
G. †Eleutherospira Blodgett and Johnson 1992
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Eleutherospira medfraensis Blodgett and Johnson 1992
Eleutherospira sinistralis Blodgett and Johnson 1992
Eleutherospira steltenbergensis Heidelberger and Koch 2005
Subfm. †Euomphalopterinae Koken 1896
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G. †Euomphalopterus Roemer 1876
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Euomphalopterus alatus Wahlenberg 1821
Euomphalopterus aliger Perner 1903
Euomphalopterus cirrhosa Lindström 1884
Euomphalopterus gracilis Koken and Perner 1925
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Invalid names: Euomphalopterus tyrrelli Parks 1913 [synonym]
Euomphalopterus marklini Lindström 1884
Euomphalopterus praetexta Lindström 1884
Euomphalopterus seductor Perner 1903
Euomphalopterus subcarinata Lindström 1884
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Invalid names: Euomphalopterus apedalensis Pitcher 1939 [synonym]
Euomphalopterus togata Lindström 1884
Euomphalopterus undulans Lindström 1884
Euomphalopterus valeria Billings 1865
Euomphalopterus velaris Whiteaves 1895
G. †Euomphalus Sowerby 1814
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Euomphalus acuticosta Sandberger and Sandberger 1855
Euomphalus archiaci Goldfuss 1844
Euomphalus articulatus Goldfuss 1844
Euomphalus basinodosus Kirchner 1915
Euomphalus bundtzeni Blodgett 1992
Euomphalus catillus Martin 1793
Euomphalus conradi Hall 1861
Euomphalus eurekensis Walcott 1884
Euomphalus illinoisensis Thein and Nitecki 1974
Euomphalus mohri Kirchner 1915
Euomphalus neapolitanus Whidborne 1892
Euomphalus patulus Koken and Perner 1925
Euomphalus pentangulatus Sowerby 1814
Euomphalus planodorsatus Meek and Worthen 1860
Euomphalus planorbis d’Archiac and de Verneuil 1842
Euomphalus plummeri Knight 1934
Euomphalus schnurii d’Archiac and de Verneuil 1842
Euomphalus serratus Knight 1934
Euomphalus similis Meek and Worthen 1862
Euomphalus trigonalis Goldfuss 1844
Euomphalus triliris Easton 1943
Euomphalus utahensis Hall and Whitfield 1877
G. †Krasopea Horný 1992
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Krasopea glabra Frýda and Bandel 1997
Krasopea solaris Horný 1992
G. †Rhabdotocochlis Knight 1933
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G. †Sinistrispira Jhaveri 1969
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G. †Straparollus de Montfort 1810
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Straparollus ater Spitz 1907
Straparollus bicavatus Spriestersbach 1942
Straparollus brevis Yoo 1994
Straparollus devonoaltus Heidelberger and Bandel 1999
Straparollus dionysii de Montfort 1810
Straparollus filifora Perner 1903
Straparollus fragilis Perner 1903
Straparollus hecale Hall 1876
Straparollus hippolyta Billings 1865
Straparollus inops Hall 1876
Straparollus kokeni Spitz 1907
Straparollus leptoni Tassell 1982
Straparollus lonemountainensis Blodgett and Johnson 1992
Straparollus magnus Kurushin 1986
Straparollus multispina Sandberger and Sandberger 1855
Straparollus planorbiformis de Koninck 1881
Straparollus planus Heidelberger 2001
Straparollus rudis Hall 1876
Straparollus vermis Whidborne 1896
G. †Tychobrahea Horny 1992
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Tychobrahea aerumnans Horný 1992
Tychobrahea amosi Horný 1992
Tychobrahea concors Perner 1903
Tychobrahea proctoni Tassell 1982
Superfm. †Cirroidea Bandel 1993
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Fm. †Cirridae Cossmann 1916
Fm. †Discohelicidae Schröder 1995
Fm. †Aldanellidae Linsley and Kier 1984
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G. †Aldanella Vostokova 1962
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Aldanella costata Missarzhevsky 1989
Aldanella iberica Gubanov et al. 2004
Aldanella remota Billings 1872
Fm. †Archaeophialidae Knight and Yochelson 1958
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G. †Macroscenella Wilson 1951
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Macroscenella superba Billings 1865
Fm. †Bucanellidae Koken and Perner 1925
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G. †Crenistriella Knight 1945
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Crenistriella armoricana Blodgett et al. 1999
Fm. †Bucaniidae Ulrich and Scofield 1897
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Subfm. †Tremanotinae Peel 1972
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G. †Boiotremus Horný 1962
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Boiotremus beraunensis Perner 1903
Boiotremus caelatus Perner 1903
Boiotremus distans Perner 1903
Boiotremus fortis Frech 1894
Boiotremus incipiens Perner 1903
Boiotremus kosovensis Horný 1963
Boiotremus longitudinalis Lindström 1884
G. †Goniotremus Horný 1992
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Goniotremus insectus Frech 1894
Goniotremus involutus Frech 1894
Goniotremus polygonus Perner 1903
G. †Tremanotus Hall 1868
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Tremanotus angustata Hall 1852
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Invalid names: Tremanotus alpheus Hall 1868 [synonym]
Tremanotus aymestriensis Murchison 1839
Tremanotus chicagoensis McChesney 1859
Tremanotus civis Perner 1903
Tremanotus compressus Lindström 1884
Tremanotus cyclocostatus Talent and Philip 1956
Tremanotus inopinata Perner 1903
Tremanotus minutus Northrop 1939
Tremanotus parvus Spitz 1907
Tremanotus pervoluta McChesney 1861
Tremanotus planorbis Perner 1903
Tremanotus portlocki Reed 1921
Tremanotus pritchardi Cresswell 1893
Tremanotus profundus Hall 1859
Tremanotus tuboides Perner 1903
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Invalid names: Tremanotus nobile Perner 1903 [synonym]
Fm. †Cyrtonellidae Knight and Yochelson 1958
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G. †Cyrtonella Hall 1879
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Cyrtonella expansus Hall 1860
Cyrtonella mitella Hall 1859
G. †Isospira Koken 1897
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Isospira bucanioides Koken 1897
Isospira huttoni Reed 1921
Isospira lepida Perner 1903
Isospira nautilina Koken and Perner 1925
Isospira reinwaldti Öpik 1930
Isospira reticulata Wängberg-Eriksson 1964
Invalid names: Isospiridae Wängberg-Eriksson 1964 [synonym]
Fm. †Igarkiellidae Parkhaev 2002
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G. †Asperoconus Yü 1979
Fm. †Knightitidae Knight 1956
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G. †Triplicatula Licharew 1968
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Fm. †Strobeidae Bandel 2002
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G. †Dembabaspira Massa et al. 1974
G. †Globozyga Thein and Nitecki 1974
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Globozyga littonana Hall 1856
Globozyga reticulata Hyde 1953
Globozyga subcorpulenta Whitfield 1882
Globozyga tenuistriata Thein and Nitecki 1974
Fm. †Vltaviellidae Bandel and Frýda 1999
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Subfm. †Vltaviellinae Bandel and Frýda 1999
Subfm. †Bellerophontinae M'Coy 1851
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G. †Aglaoglypta Knight 1942
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Aglaoglypta hicksii Whidborne 1892
Aglaoglypta koeneni Clarke 1904
Aglaoglypta labyrinthodes Whidborne 1896
Aglaoglypta maera Hall 1876
Aglaoglypta nactoides Clarke and Swartz 1913
Aglaoglypta tuberculatus de Ferrusac and d'Orbigny 1840
Aglaoglypta veeversi Cook 1998
G. †Mogulia Waagen 1880
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Mogulia bifrons Waagen 1880
Mogulia clausus Gemmellaro 1889
Mogulia daubenyi Gemmellaro 1889
Mogulia planoconvexus Mansuy 1912
Mogulia regularis Waagen 1880
Mogulia savii Gemmellaro 1889
G. †Pharkidonotus Girty 1912
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Pharkidonotus altitropis Kulas and Batten 1997
Pharkidonotus breyeri Hoare et al. 1997
Pharkidonotus galeatus Wanner 1922
Pharkidonotus harrodi Gurley 1883
Pharkidonotus labioreflexus Sturgeon 1964
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Invalid names: Pharkidonotus tricarinatus Shumard and Swallow 1858 [synonym]
Pharkidonotus westi Yochelson 1960
G. †Sphaerocyclus Perner 1903
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Sphaerocyclus bohemicus Perner 1903
Sphaerocyclus heros Spitz 1907
Sphaerocyclus hintzei Frech 1894
Sphaerocyclus iners Spitz 1907
Sphaerocyclus morganianus Hartt and Rathbun 1875
Sphaerocyclus tuber Hall 1879
G. †Waagenella de Koninck 1883
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Waagenella asiaticus Roemer 1880
Waagenella claxtonensis Thein and Nitecki 1974
Waagenella crassus Meek and Worthen 1860
Waagenella cylindrica Gemmellaro 1889
Waagenella jonesianus de Koninck 1863
Waagenella lineatus Yochelson 1960
Waagenella meeki de Koninck 1883
Waagenella menardensis Thein and Nitecki 1974
Waagenella muensteri de Ferrusac and d'Orbigny 1840
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Invalid names: Waagenella plicatus de Ryckholt 1847 [synonym]
Waagenella pinguis de Koninck 1883
Waagenella plummeri Yochelson 1960
Waagenella roemeri Fliegel 1901
Waagenella sowerbyi de Ferrusac and d'Orbigny 1840
Waagenella vespertinus Gordon and Yochelson 1983
Waagenella yuani Yin 1932
Subfm. †Bucaniinae Ulrich and Scofield 1897
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G. †Loxobucania Knight 1942
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Loxobucania crassa Ulrich and Scofield 1897
Loxobucania ellisensis Twenhofel 1928
Loxobucania emmonsi Ulrich and Scofield 1897
Loxobucania evoluta Reed 1921
Loxobucania frankfortensis Ulrich and Scofield 1897
Loxobucania gravida Reed 1921
Loxobucania katoi Kobayashi 1930
Loxobucania lindsleyi Safford 1869
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Invalid names: Loxobucania micronema Ulrich and Scofield 1897 [synonym]
Loxobucania minnesotensis Ulrich and Scofield 1897
Loxobucania nashvillensis Ulrich and Scofield 1897
Loxobucania singularis Ulrich and Scofield 1897
Subfm. †Bucanopsinae Wahlman 1992
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G. †Bucanopsis Ulrich and Scofield 1897
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Bucanopsis carinifera Ulrich and Scofield 1897
Bucanopsis comata Perner 1903
Bucanopsis diabloensis Wahlman 1992
Bucanopsis gemma Lindström 1884
Bucanopsis latevittatus Lindström 1884
Bucanopsis lirata Ladd 1925
Bucanopsis nicoli Reed 1921
Bucanopsis trisinuata Öpik 1953
Bucanopsis volgulica Chernyshev 1893
Subfm. †Euomphalinae White 1877
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G. †Amphiscapha Knight 1942
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Amphiscapha browni Thomas 1930
Amphiscapha calix Gordon and Yochelson 1975
Amphiscapha catilloides Conrad 1842
Amphiscapha intermedius Gordon and Yochelson 1983
Amphiscapha marginatus d'Eichwald 1860
Amphiscapha mongolicus Grabau 1931
Amphiscapha muricata Knight 1934
Amphiscapha reedsi Knight 1934
Amphiscapha subquadrata Meek and Worthen 1870
Amphiscapha subrugosa Meek and Worthen 1873
Amphiscapha subsulcata Knight 1934
G. †Leptomphalus Yochelson 1956
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G. †Paromphalus Grabau 1936
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Paromphalus ammonitiformis Etheridge 1902
Paromphalus mapingensis Grabau 1936
G. †Planotectus Yochelson 1956
G. †Pseudomphalotrochus Blodgett 1992
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Pseudomphalotrochus clarkei de Koninck 1876
Pseudomphalotrochus cottrelli Linsley and Yochelson 1973
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Invalid names: Pseudomphalotrochus hoffmani Linsley and Yochelson 1973 [synonym], Pseudomphalotrochus hypotropis Radabaugh 1942 [synonym]
Pseudomphalotrochus incrustatus Linsley and Yochelson 1973
Pseudomphalotrochus leonhardi d’Archiac and de Verneuil 1842
Pseudomphalotrochus winnipegosis Linsley and Yochelson 1973
Subfm. †Euphemitinae Knight 1956
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G. †Euphemitopsis Yochelson 1960
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Euphemitopsis multinodosa Yochelson 1960
Subfm. †Lesueurillinae Wagner 1999
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G. †Eccyliopterus Remelé 1888
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Eccyliopterus alatus Roemer 1876
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Invalid names: Eccyliopterus replicata Angelin and Lindström 1880 [synonym]
Eccyliopterus declivis Remelé 1888
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Invalid names: Eccyliopterus spirillum Koken 1896 [synonym]
Eccyliopterus ottawaensis Billings 1860
Eccyliopterus regularis Remelé 1888
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Invalid names: Eccyliopterus tenuissimus Koken and Perner 1925 [synonym], Eccyliopterus tolli Koken 1896 [synonym]
Eccyliopterus vagrans Raymond 1905
G. †Lesueurilla Koken 1898
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Lesueurilla beloitensis Ulrich and Scofield 1897
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Invalid names: Lesueurilla gradata Koken 1897 [synonym], Lesueurilla helix d'Eichwald 1860 [synonym]
Lesueurilla kushanensis Grabau 1922
Lesueurilla prima Perner 1903
Lesueurilla shirakii Kobayashi 1934
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Invalid names: Lesueurilla minima Kobayashi 1934 [synonym]
Subfm. †Naticopsinae Meek and Worthen 1866
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G. †Colpites Knight 1936
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Colpites lirata Hoare et al. 1997
Colpites striata Batten 1989
Subfm. †Palaeotrochinae Knight 1956
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G. †Cycloscena Fletcher 1958
G. †Sosiolytes Gemmellaro 1889
Subfm. †Pararaphistomatinae Wagner 1999
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G. †Climacoraphistoma Vostokova 1955
G. †Pararaphistoma Vostokova 1955
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Pararaphistoma damesi Koken 1889
Pararaphistoma disciformis Longstaff 1924
Pararaphistoma obvallatum Wahlenberg 1821
Pararaphistoma qualteriata von Schlotheim 1820
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Invalid names: Pararaphistoma scalitoides Koken 1897 [synonym]
Pararaphistoma suturale Koken and Perner 1925
Subfm. †Plectonotinae Boucot and Yochelson 1966
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G. †Ptomatis Clarke 1899
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Ptomatis africanoides Reed 1925
Ptomatis moreirai Clarke 1913
Ptomatis patulus Hall 1843
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Invalid names: Ptomatis obsoleta Hall 1876 [synonym]
Ptomatis proteiforme Hyde 1953
Ptomatis rudis Hall 1860
Invalid names: Fuchsella Spriestersbach 1942 [replaced]
Subfm. †Porcelliinae von Zittel 1895
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G. †Zlatokonia Horný 1992
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Zlatokonia eximia Perner 1907
Subfm. †Progalerinae Knight 1956
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G. †Progalerus Holzapfel 1895
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Progalerus conoideus Holzapfel 1895
Subfm. †Salpingostomatinae Koken and Perner 1925
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G. †Grandostoma Horný 1962
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Grandostoma bohemica Perner 1903
Grandostoma caudatum Perner 1903
Grandostoma grande Perner 1903
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Invalid names: Salpingostoma asteroideum Reed 1921 [synonym]
Grandostoma taconicum Marek 1963
Subfm. †Scaevogyrinae Wenz 1938
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G. †Scaevogyra Whitfield 1878
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Scaevogyra naticaformis Kobayashi 1933
Scaevogyra swezeyi Whitfield 1878
Scaevogyra thompsoni Webers et al. 1992
Scaevogyra ulrichi Kobayashi 1933
G. †Versispira Perner 1903
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Versispira contraria Perner 1903
G. †Arhouriella Geyer and Streng 1998
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Arhouriella thecoides Matthew 1899
G. †Camya Hinz-Schallreuter 1995
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Camya asy Hinz-Schallreuter 1995
G. †Amphelissa Etheridge 1921
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Amphelissa carinatum Heidecker 1959
Amphelissa isisensis Etheridge, Jr. 1921
G. †Atlantophon Horný 1997
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Atlantophon maider Horný 1997
G. †Australoxa Cook and Camilleri 1997
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Australoxa anglica d'Orbigny 1850
Australoxa tasselli Cook and Camilleri 1997
G. †Bandelopsis Frýda et al. 2003
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Bandelopsis oregonensis Frýda et al. 2003
G. †Barynema Fraunfelter 1973
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Barynema lirata Hall 1860
Barynema multilirata Hall 1859
G. †Bucanopsina Horný 1997
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Bucanopsina calypso Perner 1903
G. †Cheeneetnukia Blodgett and Cook 2002
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Cheeneetnukia australis Blodgett and Cook 2002
Cheeneetnukia frydai Blodgett and Cook 2002
Cheeneetnukia spinosa Phillips 1841
G. †Deacheospira Wagner 1999
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Deacheospira egens Perner 1907
Deacheospira elliptica Hisinger 1837
Deacheospira hotzi Rohr 1980
Deacheospira inflata Koken 1896
Deacheospira maritima Koken 1897
Deacheospira oriens Perner 1907
G. †Devononema Fraunfelter 1973
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Devononema typicum Fraunfelter 1973
G. †Devononerita Blodgett and Frýda 1999
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Devononerita brevis Sowerby 1827
Devononerita brevispira Whiteaves 1892
Invalid names: Acanthotropis Radabaugh 1942 [replaced]
G. †Didymalgia Cook 1997
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G. †Eifelcyrtus Frýda and Heidelberger 2003
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Eifelcyrtus blodgetti Frýda and Heidelberger 2003
G. †Elkoceras Lintz and Lohr 1958
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Elkoceras volborthi Lintz and Lohr 1958
G. †Episfaxis Knight 1937
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Episfaxis complacens Perner 1903
Episfaxis steiningeri Koken 1889
G. †Euconodoma Kues 1990
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Euconodoma gavinae Kues 1990
Euconodoma laschmensis Mazaev 1997
G. †Flemingella Knight 1936
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Flemingella nysti de Koninck 1881
G. †Goldfussoceras Blodgett and Frýda 1999
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Goldfussoceras circinalis Goldfuss 1844
G. †Grabinopsis Krawczyński 2002
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Grabinopsis guerichi Krawczyński 2002
G. †Holyneconcha Frýda 1998
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Holyneconcha splendida Frýda 1998
G. †Humboldtiella Blodgett and Frýda 1999
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Humboldtiella clarkei Holzapfel 1895
Humboldtiella imbricata Römer 1843
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Invalid names: Humboldtiella undulata Römer 1843 [synonym]
G. †Ibergia Blodgett and Frýda 1999
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Ibergia centrifuga Römer 1843
Ibergia circularis Phillips 1841
Ibergia subtrigonalis Whiteaves 1892
G. †Kallispira Heidelberger and Bandel 1999
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Kallispira latostriata Heidelberger and Bandel 1999
Kallispira varistriata Heidelberger and Bandel 1999
G. †Koneprusellia Frýda 1998
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Koneprusellia invertens Perner 1907
G. †Krameriella Frýda and Heidelberger 2003
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Krameriella hornyi Frýda and Heidelberger 2003
G. †Krolmusium Horný 2002
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Krolmusium chlupaci Horný 2002
G. †Martinidiscus Frýda 2004
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Martinidiscus woodwardii Martin 1809
G. †Mendelia Frýda 1998
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Mendelia lata Frýda 1998
G. †Mestoronema Wagner 1999
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Mestoronema bipatellera Koken and Perner 1925
Mestoronema marginalis d'Eichwald 1860
Mestoronema scotica Longstaff 1924
G. †Nonorios Horný 1997
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Nonorios pater Perner 1903
G. †Novakopteron Horný 2001
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Novakopteron pravoslavi Horný 2001
G. †Nuetzelopsis Frýda et al. 2003
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Nuetzelopsis orchardi Frýda et al. 2003
Nuetzelopsis tozeri Frýda et al. 2003
G. †Offleyotrochus Peel 1979
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Offleyotrochus naresi Etheridge 1878
G. †Ornatosinuitina Blodgett and Frýda 1999
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Ornatosinuitina reyesi Fischer 1969
G. †Palaeozyga Horný 1955
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Palaeozyga bohemica Horný 1955
Palaeozyga hanusi Horný 1955
Palaeozyga prantli Horný 1955
Palaeozyga roscobiensis Longstaff 1933
Palaeozyga sulculosa Phillips 1836
Palaeozyga svobodai Horný 1955
G. †Paragnesia Blodgett and Frýda 1999
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Paragnesia costata Goldfuss 1844
G. †Pauquysia Frýda 2004
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Pauquysia discrepans de Koninck 1883
G. †Perunela Frýda and Bandel 1997
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Perunela bohemica Frýda and Bandel 1997
G. †Phymatifer de Koninck 1881
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Phymatifer coroniferus de Koninck 1881
G. †Purkynespira Frýda and Bandel 1997
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Purkynespira parvulum Horný 1992
Purkynespira reticulata Frýda and Bandel 1997
G. †Saturnotropis Horný 1992
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Saturnotropis simulans Perner 1903
G. †Siskiyouspira Rohr 1980
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G. †Soetenichia Heidelberger and Bandel 1999
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Soetenichia girzenbergense Kirchner 1915
G. †Spinyplatyceras Blodgett and Frýda 1999
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Spinyplatyceras bartlettense Yochelson and Kopf 1956
Spinyplatyceras dumosum Conrad 1840
Spinyplatyceras paxiller Clarke 1908
Spinyplatyceras pugnus Clarke 1904
Spinyplatyceras tylotus Whidborne 1891
G. †Stusakia Frýda 1998
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Stusakia pulchra Frýda 1998
G. †Tachloconcha Horný 2000
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Tachloconcha interupta Perner 1903
G. †Tomoceras White and St. John 1867
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Tomoceras gilliana White and St. John 1867
G. †Tophicola Horný and Peel 1995
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Tophicola linsleyi Horný and Peel 1995
G. †Tortilla Perner 1903
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Tortilla disjuncta Perner 1903
G. †Tubogyra Perner 1903
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Tubogyra primula Perner 1903
G. †Tubospirina Frýda 1998
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Tubospirina tubicina Perner 1903
G. †Turbomaria Perner 1907
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Turbomaria sepulta Perner 1903
G. †Ulungaratoconcha Blodgett and Cook 2002
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Ulungaratoconcha bicoronata Paeckelmann 1922
Ulungaratoconcha bigranulosa d’Archiac and de Verneuil 1842
Ulungaratoconcha binodosa d’Archiac and de Verneuil 1842
Ulungaratoconcha bononi Tassell 1982
Ulungaratoconcha coronata d’Archiac and de Verneuil 1842
Ulungaratoconcha heidelbergeri Blodgett and Cook 2002
Ulungaratoconcha intermedia d’Archiac and de Verneuil 1842
Ulungaratoconcha lennensis Heidelberger and Koch 2005
G. †Urftia Heidelberger and Bandel 1999
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Urftia convexa Heidelberger and Bandel 1999
G. †Wallowiella Frýda et al. 2003
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Wallowiella vallieri Frýda et al. 2003
G. †Weitschatopsis Frýda et al. 2003
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Weitschatopsis pulchra Frýda et al. 2003
G. †Westraliadiscus Cook 1999
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G. †Westwooditrochus Cook 1998
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G. †Zenospira Frýda and Bandel 1997
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Zenospira inamictus Whidborne 1892
Zenospira pragensis Frýda and Bandel 1997
G. †Zlichovia Frýda and Manda 1997
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Zlichovia paradoxa Frýda and Manda 1997
G. †Isitella Missarzhevsky 1989
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Isitella plicata Missarzhevsky 1989
Isitella recta Missarzhevsky 1989
G. †Proeccyliopterus Kobayashi 1939
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Proeccyliopterus chronus Walcott 1912
G. †Archaeophialia Perner 1903
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Archaeophialia antiquissima Hisinger 1837
G. †Archeoconus Stinchcomb 1986
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Archeoconus missourensis Stinchcomb 1986
G. †Baltiscanella Horný 1997
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Baltiscanella christianiae Koken and Perner 1925
G. †Barrandicellopsis Horný 2000
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G. †Cosminoconella Webers et al. 1992
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Cosminoconella runnegari Webers et al. 1992
G. †Damilina Horný 1961
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Damilina laevigata Perner 1903
Damilina subrotunda Perner 1903
Damilina umbo Perner 1903
G. †Kornoutella Horný 1997
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Kornoutella bohemicus Horný 1963
G. †Ladamarekia Horný 1992
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Ladamarekia miranda Horný 1992
G. †Marekicella Horný 1997
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Marekicella podexpulicis Horný 1997
G. †Pragamira Horný 1995
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Pragamira perlonga Horný 1963
G. †Quasisinuites Horný 1997
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Quasisinuites rapax Horný 1997
G. †Sarkanella Horný 1997
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Sarkanella novaki Horný and Vonka 2001
Sarkanella vokovicensis Horný 1963
G. †Sinuitopsina Horný 1997
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Sinuitopsina plasi Horný 1997
G. †Undicornu Horný 1970
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Undicornu carens Barrande 1881
G. †Yochelsonellis Horný 1966
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Yochelsonellis decorus Perner 1903
Yochelsonellis fallax Perner 1903
Yochelsonellis kokeni Perner 1903
Yochelsonellis orphanus Perner 1903
G. †Boucotonotus Frýda and Manda 1997
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Boucotonotus mareki Horný 1963
Boucotonotus snajdri Horný 1963
G. †Nodozyga Horný 1955
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Nodozyga cylindracea Longstaff 1933
Nodozyga longnorensis Longstaff 1933
Nodozyga rowlandsi Longstaff 1933
Nodozyga rugifera Phillips 1836
Subfm. †Cymbulariinae Horný 1963
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G. †Beyrichidiscus Linsley and Peel 1983
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Beyrichidiscus fecundatus Linsley and Peel 1983
G. †Joleaudella Patte 1929
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Joleaudella argo Billings 1860
Joleaudella catilloides Raymond 1906
Joleaudella karki Öpik 1930
Joleaudella mansuyi Patte 1929
Joleaudella perstriatus Foerste 1924
Joleaudella rotula Clarke 1908
Joleaudella sigmoidalis Kobayashi 1934
Joleaudella transiens Reed 1921
Fm. †Temnodiscidae Horný 1963
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G. †Alaskodiscus Rohr et al. 2013
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Alaskodiscus donensis Rohr et al. 2003
Invalid names: Alaskadiscus Rohr et al. 2003 [replaced]
G. †Biloboconus Stinchcomb and Angeli 2002
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Biloboconus frizzelli Stinchcomb and Angeli 2002
G. †Wildernessia Stinchcomb and Angeli 2002
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Wildernessia inexpectans Stinchcomb and Angeli 2002
G. †Palaeacmaea Hall and Whitfield 1872
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Palaeacmaea discoides Perner 1903
Palaeacmaea typica Hall and Whitfield 1872
G. †Thairoplax Cherns 1998
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Thairoplax merriami Hoare 2000
Eccyliomphalus fredericus Raymond 1902
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Invalid names: Eccyliomphalus kalmi Raymond 1906 [synonym]
Loxonema costulatum Perner 1907
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Invalid names: Loxonema libens Perner 1907 [synonym]
Protowarthia subcompressa Ulrich and Scofield 1897
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Invalid names: Protowarthia concinna Ulrich and Scofield 1897 [synonym]
Raphistoma keizanense Kobayashi 1934
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Invalid names: Scalites giganteus Kobayashi 1959 [synonym]
Scoliostoma megalostoma Sandberger and Sandberger 1854
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Invalid names: Scoliostoma zitteli Holzapfel 1882 [synonym]
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Invalid names: Donaldina tenuis de Koninck 1883 [synonym]
Euomphalus elegans de Koninck 1881
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Invalid names: Euomphalus amaenus de Koninck 1881 [synonym]
Tremanotus dilatatus de Sowerby and Murchison 1839
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Invalid names: Tremanotus girvanensis Reed 1921 [synonym]
Teutonophon lineatus Dechen 1832
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Invalid names: Bellerophon striatus Bronn 1835 [synonym], Teutonophon striatus de Ferrusac and d'Orbigny 1840 [synonym]
Cyclonema cancellata Hall 1847
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Invalid names: Cyclonema (Cyclonemina) contexta Perner 1903 [synonym]
Naticopsis ventricosa Norwood and Pratten 1855
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Invalid names: Natica altonensis McChesney 1865 [synonym]
Pararaphistoma vaginati Koken and Perner 1925
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Invalid names: Pararaphistoma applanata Koken 1897 [synonym]
Aclisina striatula de Koninck 1844
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Invalid names: Aclisina selkirkii Donald 1898 [objective synonym]
Loxonema nanum de Koninck 1881
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Invalid names: Aclisina pusilla Donald 1898 [synonym]
G. †Tubiconcha Frýda et al. 2006
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Tubiconcha leunissi Heidelberger 2001
Subg. †Murchisonia (Hormotoma) Salter 1859
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Hormotoma agilis Billings 1865
Hormotoma altesinuata Koken and Perner 1925
Hormotoma anna Billings 1859
Hormotoma antiqua Peel 1977
Hormotoma artemesia Billings 1865
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Invalid names: Hormotoma powellensis Cullison 1944 [synonym]
Hormotoma articulata Murchison 1839
Hormotoma cassina Whitfield 1897
Hormotoma concinnus Horný 1952
Hormotoma confusa Whitfield 1889
Hormotoma exilis d'Eichwald 1860
Hormotoma fascinata Ulrich and Scofield 1897
Hormotoma gigantea Billings 1857
Hormotoma gracilens Whitfield 1889
Hormotoma hyale Billings 1865
Hormotoma insignis d'Eichwald 1860
Hormotoma latifasciatum Etheridge 1878
Hormotoma meryenorfi Koken 1897
Hormotoma meyendorfi Koken 1897
Hormotoma multivolvis Billings 1857
Hormotoma neglecta Ulrich and Scofield 1897
Hormotoma ordovix Donald 1902
Hormotoma polita Donald 1902
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Invalid names: Turritoma pinguis Donald 1902 [synonym]
Hormotoma prava Whitfield 1886
Hormotoma robusta Donald 1902
Hormotoma rudis d'Eichwald 1860
Hormotoma scrobiculata Koken 1897
Hormotoma striatula Longstaff 1924
Hormotoma tenuifilosa Donald 1906
Hormotoma teretiformis Billings 1857
Hormotoma vesta Billings 1865
G. †Paraporcellia Blodgett and Johnson 1992
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Paraporcellia rohri Blodgett and Johnson 1992
G. †Iapetocardia Rogalla and Amler 2006
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Murchisonia brevis Roemer 1856
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Invalid names: Pleurotomaria bilineata Sandberger and Sandberger 1853 [replaced]
Kitikamispira armata Goldfuss 1832
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Invalid names: Kitikamispira ornata Goldfuss 1844 [synonym]
Fm. †Orthonematidae Nützel and Bandel 2000
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G. †Aclisina de Koninck 1881
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Aclisina golconda Thein and Nitecki 1974
Aclisina terebra Donald 1898
G. †Altadema Kues 2002
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Altadema convexa Kues 2002
G. †Loxisonia Batten 1985
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Loxisonia hormotoma Batten 1985
Loxisonia zygopleuroides Batten 1985
G. †Metorthonema Erwin 1988
G. †Vebericochlis Licharev 1967
G. †Austroneilsonia Sabatini 1975
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G. †Coelocyclus Perner 1903
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Coelocyclus groenlandicus Poulsen 1974
Coelocyclus hadroni Tassell 1982
Coelocyclus novaki Perner 1903
Coelocyclus ornatus Northrop 1939
Coelocyclus rarissimus Perner 1903
G. †Cyrtodiscus Perner 1903
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Cyrtodiscus evolvens Perner 1903
Cyrtodiscus nitidus Perner 1903
Cyrtodiscus procer Perner 1903
Cyrtodiscus simaki Horný 1997
Invalid names: Gamadiscus Horný 1962 [synonym]
G. †Prosoptychus Perner 1903
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Prosoptychus baccatus Reed 1927
Prosoptychus globulus Lindström 1884
Prosoptychus plenus Billings 1874
Prosoptychus projectus Perner 1903
Prosoptychus rotunda Perner 1903
Prosoptychus sibiricus Vostokova 1955
Prosoptychus sphaera Lindström 1884
Prosoptychus wenlockensis Murchison 1839
G. †Bieberiana Rogalla and Amler 2006
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Bieberiana gowandense Clarke 1904
Bieberiana pugnans Whidborne 1889
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Invalid names: Bieberiana confusa Beushausen 1895 [synonym], Bieberiana eifeliense Beushausen 1895 [synonym]
G. †Cartericardia Rogalla and Amler 2006
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Cartericardia artifex Barrande 1881
Cartericardia costatum Cresswell 1893
Cartericardia dubia Williams and Breger 1916
G. †Fraipontia Rogalla and Amler 2006
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Fraipontia bella Cooper and Cloud 1938
G. †Hoareicardia Rogalla and Amler 2006
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Hoareicardia cunea Conrad 1840
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Invalid names: Hippocardia concinnum Hall 1883 [synonym], Hippocardia cuneatum Römer 1850 [synonym], Hippocardia normale Hall 1883 [synonym]
G. †Babinicardia Rogalla and Amler 2006
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Babinicardia ibergense Beushausen 1895
G. †Bohemicardia Rogalla and Amler 2006
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Bohemicardia bohemica Barrande 1881
Bohemicardia hainense Maurer 1885
G. †Globodoma Mazaev 2006
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Globodoma altavittata M'Coy 1844
Globodoma nodosa Hoare et al. 1997
Globodoma ouralica de Verneuil 1845
Globodoma spironema Meek and Worthen 1866
G. †Plectonotoides Boucot et al. 1986
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Plectonotoides gaspensis Clarke 1908
G. †Pyrgozyga Knight 1930
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Pyrgozyga marvinwelleri Knight 1930
G. †Stephanozyga Knight 1930
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Stephanozyga crassa Wanner 1922
Stephanozyga granda Kues and Batten 2001
Stephanozyga ignorata Trautschold 1867
Stephanozyga lisaspira Kues and Batten 2001
Stephanozyga magna Wang 1987
Stephanozyga nodosa Girty 1915
Stephanozyga subnodosa Knight 1930
Fm. †Pseudozygopleuridae Knight 1930
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G. †Gamizyga Hoare and Sturgeon 1980
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Gamizyga corpulentissima Knight 1930
Gamizyga expansa Hoare and Sturgeon 1980
Gamizyga girtyi Hoare and Sturgeon 1980
Gamizyga morningstarae Hoare and Sturgeon 1980
Gamizyga nitida Hoare and Sturgeon 1980
G. †Anematina Knight 1933
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Anematina conica Winchell 1863
Anematina micula Girty 1909
Anematina prisca Waagen 1880
Anematina proutana Hall 1856
Anematina subconica Hall 1860
G. †Trachydoma Meek and Worthen 1866
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Trachydoma variata Phillips 1836
Subg. †Bellerophon (Bellerophon) de Montfort 1808
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Subg. †Cyrtina (Cyrtina) Davidson 1858
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Fm. Pleurotomariidae Swainson 1840
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G. †Sisenna Koken 1896
G. †Trachybembix Böhm 1895
G. †Naiadopsis Mendes 1952
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Naiadopsis cristata Chronic 1952
Fm. †Palaeostylidae Wenz 1938
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G. †Austronema Bandel 2002
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Invalid names: Austronematinae Bandel 2002 [empty]
G. †Bicarinella Waterhouse 1966
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Bicarinella bicarinata Waterhouse 1963
Fm. †Acanthonematidae Wenz 1938
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G. †Hermosanema Kues and Batten 2001
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Hermosanema carinatum Kues 2002
Hermosanema varium Kues and Batten 2001
Fm. †Settsassiidae Bandel 1992
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G. †Percossmannella Cónsole Gonella 2011
G. †Hecetastoma Rohr and Blodgett 2008
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Hecetastoma clarki Rohr et al. 1981
Hecetastoma salteri Haswell 1865
G. †Euthyrhachis Tyler 1965
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Euthyrhachis blatchleyi Kindle 1900
Euthyrhachis indianense Miller and Gurley 1897
Euthyrhachis vulgaris Perner 1907
G. †Leptoconocardium Hoare 2006
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G. †Australotheca Malinky 2009
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Australotheca kirkbyi Howse 1857
Fm. †Tannuolinidae Fonin and Smirnova 1967
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G. †Mirabella Barskova 1988
G. †Mytoconula Horný 2009
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Mytoconula osloensis Yochelson 1977
G. †Humilispira Parkhaev 2001
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Humilispira adelocosma Zhou and Xiao 1984
Praenatica naticoides Roemer 1852
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Invalid names: Praenatica gregaria Perner 1903 [synonym]
G. †Sellinema Perner 1903
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Sellinema dives Perner 1903
Sellinema frater Perner 1903
Sellinema obtusa Whiteaves 1892
G. †Dorispira Parkhaev and Demidenko 2010
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Dorispira aliciae Brock 1998
Dorispira arguta Resser 1939
Dorispira burlingi Resser 1939
Dorispira comma Geyer 1986
Dorispira holmdalense Peel 1988
Dorispira lauta Yü 1979
Dorispira merino Runnegar and Jell 1976
Dorispira penecyrano Runnegar and Jell 1976
Dorispira terraustralis Runnegar and Jell 1976
G. †Glossina Phillips 1848
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Glossina elongata Hall 1847
Glossina nicklesi Bassler 1919
Glossina placibilis Sinclair 1945
Visitator tennesseensis Dunbar 1920
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Invalid names: Visitator curtum Dunbar 1920 [synonym], Visitator nelsoni Dunbar 1920 [synonym], Visitator planidorsata Dunbar 1920 [synonym], Visitator princeps Dunbar 1920 [synonym], Visitator quadrangulare Dunbar 1920 [synonym]
Ruedemannia laevissima Lindström 1884
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Invalid names: Ruedemannia sulcata M'Coy 1846 [synonym]
G. †Carinopelta Parkhaev 2013
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Carinopelta carinata Parkhaev 2001
G. †Goticardia Rogalla and Amler 2006
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Goticardia gogoense Fletcher 1943
Naticopsis permica Netchaev 1894
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Invalid names: Naticopsis oblata Winters 1963 [synonym]
G. †Levizygopleura Bandel 2002
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Levizygopleura trochus Knight 1930
Levizygopleura williamsi Knight 1930
G. †Nystia Tournouer 1869
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Invalid names: Nystia Tournouer 1869 [replaced], Nystia Tournouer 1869 [replaced]
Hippocardia crenata Steininger 1853
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Invalid names: Hippocardia zeileri Beushausen 1895 [synonym]
G. †Davidonia Parkhaev 2017
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Davidonia rostratum Zhou and Xiao 1984
Davidonia taconica Landing and Bartowski 1996
Davidonia rostrata Zhou and Xiao 1984
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Invalid names: Davidonia anhuiensis Zhou and Xiao 1984 [synonym], Davidonia costata Zhou and Xiao 1984 [synonym], Davidonia obliqua Landing and Bartowski 1996 [synonym]
Stachella pseudohelix Stache 1877
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Invalid names: Stachella comelicana Stache 1877 [synonym]