Classification of Ward and Blackwelder 1987

Ph. Mollusca Linnaeus 1758 [mollusk]
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Cl. Gastropoda Cuvier 1795 [snail]
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Subcl. †Euthyneura Spengel 1881
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Or. Cephalaspidea Fischer 1883
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Fm. Actaeonidae d'Orbigny 1835
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G. Acteocina Gray 1847 [barrel-bubble]
Invalid names: Pyramidelloida [empty]
Subcl. Prosobranchia Milne-Edwards 1848
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Or. Archaeogastropoda Thiele 1925
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Superfm. Cerithiacea Férussac 1819
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Fm. Cerithiidae Fleming 1822 [cerith snail]
Fm. Triphoridae Gray 1847
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G. Triphora Blainville 1828
Fm. Turritellidae Lovén 1847 [turret shell]
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G. Turritella Lamarck 1799 [turret shell]
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†Turritella beaufortensis Ward and Blackwelder 1987
Fm. Vermetidae Rafinesque 1815 [worm shell]
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G. Serpulorbis Sasso 1827
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Invalid names: Vermicularidae [empty]
Superfm. †Rissoacea Gray 1847
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Fm. Rissoidae Gray 1847
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G. Rissoa Fréminville 1814
Fm. Vitrinellidae Bush 1897
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G. Cyclostremiscus Pilsbry and Olsson 1945
G. †Didianema Woodring 1928
G. Teinostoma Adams and Adams 1853
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†Teinostoma beaufortensis Ward and Blackwelder 1987
Superfm. Trochacea Rafinesque 1815
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Fm. Liotiidae Gray 1850
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G. Arene Adams and Adams 1854
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†Arene pergemma Gardner 1948
Fm. Trochidae Rafinesque 1815 [top snail]
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G. Calliostoma Swainson 1840
Invalid names: Fissurellacea Fleming 1822 [empty], Littorinacea Gray 1840 [empty], Tornacea [empty]
Or. †Ptenoglossa Gray 1853
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Subor. †Gymnoglossa
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Superfm. Buccinacea Rafinesque 1815
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Fm. Columbellidae Swainson 1840
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G. Aesopus Gould 1860 [dovesnail]
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†Aesopus gardnerae Ward and Blackwelder 1987
G. Anachis Adams and Adams 1853
G. Mitrella Risso 1826
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†Mitrella gardnerae Olsson and Harbison 1953
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†Mitrella gardnerae ecarinata Olsson and Harbison 1953
Fm. Fasciolariidae Gray 1853
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G. Fasciolaria Lamarck 1799 [tulip snail]
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†Fasciolaria beaufortensis Ward and Blackwelder 1987
G. Heilprinia Grabau 1900
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†Heilprinia caloosaensis Heilprin 1887
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†Heilprinia caloosaensis malcolmi Ward and Blackwelder 1987
Fm. Melongenidae Gill 1867
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G. Busycon Röding 1798 [whelk]
Fm. Nassariidae Iredale 1916
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G. Nassarius Duméril 1806
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†Nassaria cornelliana Olsson 1914
†Nassarius chowanensis Gardner 1943
†Nassarius granifera Conrad 1868
†Nassarius scalaspira Conrad 1868
†Nassarius schizopyga Dall 1892
Superfm. †Crepidulacea
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Invalid names: Crepidulidae [empty]
Superfm. Cypraeacea Rafinesque 1815
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Fm. Eratoidae Gill 1871
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G. †Trivia Broderip 1837
Fm. Melanellidae Iredale 1915
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G. Balcis Leach 1847
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†Balcis beaufortensis Ward and Blackwelder 1987
†Balcis biconica Gardner 1948
†Balcis eborea Conrad 1846
G. Eulima Risso 1826
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†Eulima juncea Gardner 1948
Superfm. †Muricacea de Costa 1776
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Fm. Muricidae Rafinesque 1815 [murex snail]
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G. Eupleura Adams and Adams 1853
G. Murexiella Clench and Farfante 1945
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†Murexiella macgintyi Smith 1938
G. †Pterorhytis Conrad 1862
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†Pterorhytis conradi Dall 1890
G. Urosalpinx Stimpson 1865
Fm. Naticidae Guilding 1834 [moon snail]
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G. Lunatia Gray 1847
G. Polinices Monfort 1810 [moon snail]
G. Tectonatica Sacco 1890
Superfm. Volutacea Rafinesque 1815
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Fm. Cancellariidae Gray 1853
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G. Trigonostoma Blainville 1827
Fm. Conidae Fleming 1822 [cone shell]
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G. Conus Linnaeus 1758
Fm. Marginellidae Fleming 1828 [margin shell]
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G. †Dentimargo Cossmann 1899
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†Dentimargo polyspira Olsson and Harbison 1953
G. Granulina Jousseaume 1888
G. Prunum Swainson 1840
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†Prunum limatulum Conrad 1834
G. Volvarina Hinds 1844
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Volvarina avena Kiener 1834
Fm. Mitridae Swainson 1831 [mitre shell]
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G. Vexillum Röding 1798
Fm. Olividae Latreille 1825 [olive snail]
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G. Olivella Swainson 1831
Fm. Terebridae Mörch 1852 [auger snail]
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G. Strioterebrum Sacco 1891
Fm. Turridae Swainson 1840 [turrid]
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G. †Brachycythara Woodring 1928
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†Brachycythara reidenbachi Ward and Blackwelder 1987
G. Cymatosyrinx Dall 1889
G. †Glabrocythara Fargo 1953
G. Sedilia Fargo 1953
G. †Vitricythara Fargo 1953
Fm. Volutidae Rafinesque 1815 [volute]
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G. †Volutifusus Conrad 1863
Invalid names: Epitoniacea Berry 1910 [empty]
Cl. †Pelecypoda Goldfuss 1820
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Subcl. Heterodonta Neumayr 1884
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Or. Veneroida Gray 1854
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Superfm. Cardiacea Lamarck 1809
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Fm. Cardiidae Lamarck 1809 [cockle]
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G. Dinocardium Dall 1900
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Dinocardium robustum Lightfoot 1786
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†Dinocardium robustum hazeli Ward and Blackwelder 1987
G. Laevicardium Swainson 1840
Superfm. Carditacea Fleming 1820
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Fm. Carditidae Fleming 1820
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G. Carditamera Conrad 1838
G. Cyclocardia Conrad 1867
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G. Pleuromeris Conrad 1867
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†Pleuromeris auroraensis Ward and Blackwelder 1987
Fm. Condylocardiidae Bernard 1896
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G. Erycinella Conrad 1845
Superfm. Chamacea Blainville 1825
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Fm. Chamidae Blainville 1825 [jewel box]
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G. Chama Linnaeus 1758
Fm. Lasaeidae Gray 1842
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G. Aligena Lea 1843 [aligena]
Fm. Leptonidae Gray 1847
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G. Mysella Angas 1877
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†Mysella beaufortensis Ward and Blackwelder 1987
Superfm. Corbiculacea Gray 1847
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Fm. Corbiculidae Gray 1847
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G. Corbicula Megerle 1811
Superfm. Crassatellacea Férussac 1822
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Fm. Astartidae d'Orbigny 1844
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G. Astarte Sowerby 1816
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†Astarte concentrica Conrad 1834
Fm. Crassatellidae Férussac 1822
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G. Crassinella Guppy 1874
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†Crassinella johnsoni Ward and Blackwelder 1987
G. †Marvacrassatella Ward and Blackwelder 1987
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†Marvacrassatella kauffmani Ward and Blackwelder 1987
Superfm. Cyamiacea Philippi 1845
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Fm. Sportellidae Dall 1899
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G. Anisodonta Deshayes 1858
G. Sportella Deshayes 1858
Superfm. Mactracea Lamarck 1809
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Fm. Mactridae Lamarck 1809
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G. Mulinia Gray 1837
G. Raeta Gray 1853
G. Rangia Des Moulins 1832
G. Spisula Gray 1837
Superfm. Solenacea Lamarck 1809
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Fm. Cultellidae Davies 1935
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G. Ensis Schumacher 1817
Superfm. Tellinacea Blainville 1814
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Fm. Donacidae Fleming 1828
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G. Donax Linnaeus 1758
Fm. Semelidae Stoliczka 1870
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G. Abra Lamarck 1818 [abra]
G. Cumingia Sowerby I 1833
G. Semele Schumacher 1817
Fm. Solecurtidae d'Orbigny 1846
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G. Tagelus Gray 1847
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Fm. Tellinidae Blainville 1814 [tellin clam]
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G. Macoma Leach 1819
G. Tellina Linnaeus 1758
Superfm. Veneracea Rafinesque 1815
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Fm. Petricolidae Deshayes 1839
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G. Petricola Lamarck 1801
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†Petricola pectorosa Conrad 1834
Fm. Veneridae Rafinesque 1815 [venus clam]
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G. Chione von Mühlfield 1811
G. Dosinia Scopoli 1777
G. Gemma Deshayes 1853
G. Gouldia Adams 1847
G. Macrocallista Meek 1876
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†Macrocallista greeni Ward and Blackwelder 1987
G. Mercenaria Schumacher 1817 [quahog]
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†Mercenaria permagna Conrad 1838
G. Pitar Römer 1857
G. Transennella Dall 1884
Invalid names: Lucinacea Fleming 1828 [empty]
Subcl. Palaeotaxodonta Korobkov 1954
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Or. Nuculoida Dall 1889
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Invalid names: Nuculacea Gray 1824 [empty], Nuculanacea Adams and A. 1858 [empty]
Subcl. Pteriomorphia Beurlen 1944
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Or. Arcoida Stoliczka 1871
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Superfm. Arcacea Lamarck 1809
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Fm. Arcidae Lamarck 1809
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G. Anadara Gray 1847 [ark]
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†Anadara aequicostata Conrad 1845
G. Quadrilatera Deshayes 1860
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Fm. Noetiidae Stewart 1930
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G. Noetia Gray 1857
Invalid names: Limopsacea Dall 1895 [empty]
Or. Myoida Goldfuss 1820
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Superfm. Gastrochaenacea Gray 1840
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Fm. Gastrochaenidae Gray 1840
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G. Gastrochaena Spengler 1783
Invalid names: Myina Newell 1965 [empty], Pholadina Newell 1965 [empty]
Or. Mytiloida Rafinesque 1815
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Superfm. Mytilacea Rafinesque 1815
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Fm. Mytilidae Rafinesque 1815 [mussel]
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G. Brachidontes Swainson 1840
G. Crenella Brown 1827
G. Lithophaga Röding 1798
G. Modiolus Lamarck 1801
G. Musculus Roding 1798 [mussel]
G. Mytilus Linnaeus 1758
Or. Pterioida Newell 1965
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Subor. Ostreina Ferussac 1822
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Invalid names: Ostreacea Rafinesque 1815 [empty]
Subor. †Pteriina Newell 1965
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Superfm. Pectinacea Rafinesque 1815
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Fm. Pectinidae Wilkes 1810 [scallop]
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G. Argopecten Monterosato 1889 [calico scallop]
G. †Carolinapecten Ward and Blackwelder 1987
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†Carolinapecten eboreus Conrad 1833
G. Leptopecten Verrill 1897
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†Leptopecten auroraensis Ward and Blackwelder 1987
Fm. Plicatulidae Watson 1930
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G. Plicatula Lamarck 1801
Invalid names: Anomiacea Rafinesque 1815 [empty]
Invalid names: Anomalodesmata Dall 1889 [empty]
Cl. Scaphopoda Bronn 1862 [tusk shell]
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Fm. †Siphonodentaliidae Simroth 1894
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G. Cadulus Philippi 1844
G. Liotia Gray 1842
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Subg. Liotia (Arene) Adams and Adams 1854
G. Marginella Lamarck 1799
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Subg. †Marginella (Eburnospira) Olsson and Harbison 1953
G. Callocardia Adams 1864
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Fm. Cerithiadae Fleming 1822 [cerith snail]
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G. Bittium Gray 1847
G. Seila Adams 1861