Opinions from J. Alroy 2002

  • 'Adjidaumo belongs to Eomyidae' according to Hay 1899
  • 'Adunator belongs to Erinaceomorpha' according to D. Russell 1964
  • 'Aenocyon is a subjective synonym of Canis' according to Berta 1988
  • 'Agnotocastor coloradensis belongs to Agnotocastor' according to R. Wilson 1949
  • 'Agnotocastor galushai belongs to Agnotocastor' according to Emry 1972
  • 'Agnotocastor readingi belongs to Agnotocastor' according to Korth 1988
  • 'Agriotherium belongs to Ursidae' according to Wagner 1837
  • 'Aguafriamys belongs to Eomyidae' according to J. Wilson and Runkel 1991
  • 'Aguafriamys raineyi belongs to Aguafriamys' according to J. Wilson and Runkel 1991
  • 'Alces belongs to Cervidae' according to Gray 1821
  • 'Alilepus belongs to Leporidae' according to Dice 1931
  • 'Allacodon belongs to Cimolomyidae' according to Marsh 1889
  • 'Allacodon pumilus belongs to Allacodon' according to Marsh 1889
  • 'Allomys stirtoni belongs to Allomys' according to Klingener 1968
  • 'Alopecocyon belongs to Ursidae' according to Camp and Vanderhoof 1940
  • 'Alopex belongs to Canidae' according to Kaup 1829
  • 'Aluralagus belongs to Leporidae' according to Downey 1968
  • 'Amphechinus belongs to Erinaceidae' according to Aymard 1850
  • 'Amphicyon belongs to Amphicyonidae' according to Lartet 1836
  • 'Amphicyon reinheimeri belongs to Amphicyon' according to Cook 1926
  • 'Amphicyon superbus is recombined as Daphoenodon superbus' according to Olsen 1958
  • 'Amphilemur belongs to Amphilemuridae' according to Heller 1935
  • 'Anaptomorphus belongs to Omomyidae' according to Cope 1872
  • 'Anchitheriomys belongs to Eutypomyidae' according to Roger 1885
  • 'Anchitherium belongs to Equidae' according to von Meyer 1844
  • 'Anchitherium (Hypohippus) affinis is recombined as Hypohippus affinis' according to Leidy 1858
  • 'Ancodon belongs to ' according to Pomel 1847
  • 'Anisonchus fortunatus belongs to Anisonchus' according to Simpson 1932
  • 'Anouroneomys magnus belongs to Anouroneomys' according to Hutchison and Bown 1980
  • 'Anouroneomys minimus belongs to Anouroneomys' according to Hutchison and Bown 1980
  • 'Antiacodon belongs to Antiacodontidae' according to Marsh 1872
  • 'Antilocapra belongs to Antilocapridae' according to Ord 1818
  • 'Anzanycteris belongs to Vespertilionidae' according to J. White 1969
  • 'Anzanycteris anzensis belongs to Anzanycteris' according to J. White 1969
  • 'Apatemys belongs to Apatemyidae' according to Marsh 1872
  • 'Apheliscus belongs to Mioclaenidae' according to Cope 1875
  • 'Aphelops belongs to Rhinocerotidae' according to Owen 1845
  • 'Aphelops malacorhinus belongs to Aphelops' according to Cope 1881
  • 'Aphelops mutilus belongs to Aphelops' according to Matthew 1932
  • 'Aphronorus simpsoni belongs to Aphronorus' according to Gazin 1938
  • 'Aplocerus is a subjective synonym of Oreamnos' according to Hall and Kelson 1959
  • 'Aplocerus is a subjective synonym of Oreamnos' according to Hall and Kellogg 1955
  • 'Aplocerus is a subjective synonym of Oreamnos' according to Frick 1927
  • 'Aplocerus belongs to ' according to Hamilton-Smith 1827
  • 'Apternodus belongs to Apternodontidae' according to Matthew 1903
  • 'Apternodus altitalonidus is recombined as Oligoryctes altitalonidus' according to Asher et al. 2002
  • 'Apternodus baladontus belongs to Apternodus' according to Asher et al. 2002
  • 'Apternodus bicuspis is recombined as Proterix bicuspis' according to Asher et al. 2002
  • 'Apternodus dasophylakas belongs to Apternodus' according to Asher et al. 2002
  • 'Apternodus major belongs to Apternodus' according to Asher et al. 2002
  • 'Archidiskodon sonoriensis is a subjective synonym of Mammuthus imperator' according to Lucas and Gonzalez 1996
  • 'Arctisorex belongs to Soricidae' according to Hutchison and Harington 2002
  • 'Arctisorex polaris belongs to Arctisorex' according to Hutchison and Harington 2002
  • 'Arctocyon belongs to Arctocyonidae' according to Blainville 1841
  • 'Arctocyonides belongs to Arctocyonidae' according to Lemoine 1891
  • 'Arctotherium is a subjective synonym of Arctodus' according to Kurten 1967
  • 'Arctotherium belongs to ' according to Bravard 1857
  • 'Arretotherium belongs to Anthracotheriidae' according to Douglass 1901
  • 'Asinus is a subjective synonym of Equus' according to Groves and Willoughby 1981
  • 'Asinus is a subjective synonym of Equus' according to Azzaroli 1966
  • 'Asinus is a subjective synonym of Equus' according to Edinger 1948
  • 'Asinus is a subjective synonym of Equus' according to McGrew 1944
  • 'Asinus is a subjective synonym of Equus' according to Popov 1939
  • 'Bassariscus belongs to Procyonidae' according to Coues 1887
  • 'Bassariscus casei belongs to Bassariscus' according to Hibbard 1952
  • 'Bathygenys belongs to Merycoidodontidae' according to Douglass 1901
  • 'Batodonoides vanhouteni belongs to Batodonoides' according to Bloch et al. 1998
  • 'Bison belongs to Bovidae' according to Hamilton-Smith 1827
  • 'Blackia belongs to Sciuridae' according to Mein 1970
  • 'Blarina belongs to Soricidae' according to Lesson 1842
  • 'Blastomeryx belongs to Moschidae' according to Cope 1877
  • 'Bootherium belongs to Bovidae' according to Harlan 1825
  • 'Bos grunniens belongs to Bos' according to Linnaeus 1766
  • 'Bothriodon belongs to Anthracotheriidae' according to Aymard 1846
  • 'Brachyerix belongs to Erinaceidae' according to Matthew 1933
  • 'Brachyerix macrotis belongs to Brachyerix' according to Matthew 1933
  • 'Brachypotherium belongs to Rhinocerotidae' according to Roger 1904
  • 'Brachyprotoma belongs to Mustelidae' according to Brown 1908
  • 'Brachyrhynchocyon belongs to Amphicyonidae' according to Loomis 1936
  • 'Buisnictis burrowsi belongs to Buisnictis' according to Hibbard 1972
  • 'Bunomeryx belongs to Artiodactyla' according to Wortman 1898
  • 'Bunomeryx montanus belongs to Bunomeryx' according to Wortman 1898
  • 'Camelops minidokae belongs to Camelops' according to Hay 1927
  • 'Canimartes belongs to Mustelidae' according to Cope 1893
  • 'Canis dirus belongs to Canis' according to Berta 1988
  • 'Canis latrans belongs to Canis' according to Say 1823
  • 'Canis rufus belongs to Canis' according to Audubon and Bachman 1851
  • 'Canis texanus is recombined as Cuon texanus' according to Berta 1988
  • 'Cantius antediluvius is a subjective synonym of Notharctus venticolus' according to Gunnell 2002
  • 'Cantius simonsi belongs to Cantius' according to Gunnell 2002
  • 'Capromeryx belongs to Antilocapridae' according to Matthew 1902
  • 'Capromeryx furcifer belongs to Capromeryx' according to Matthew 1902
  • 'Carpodaptes hobackensis belongs to Carpodaptes' according to Fox 2002
  • 'Carpodaptes stonleyi belongs to Carpodaptes' according to Fox 2002
  • 'Carpolestes cygneus is recombined as Carpodaptes cygneus' according to Fox 2002
  • 'Castor canadensis belongs to Castor' according to Kuhl 1820
  • 'Castoroides ohioensis belongs to Castoroides' according to Foster 1838
  • 'Catopsalis calgariensis belongs to Catopsalis' according to L. Russell 1926
  • 'Cedromus belongs to Sciuridae' according to R. Wilson 1949
  • 'Cedromus wardi belongs to Cedromus' according to R. Wilson 1949
  • 'Centetodon belongs to Geolabididae' according to Marsh 1872
  • 'Cephalogale belongs to Ursidae' according to Jourdan 1862
  • 'Ceratogaulus belongs to Mylagaulidae' according to Matthew 1902
  • 'Ceratogaulus rhinocerus belongs to Ceratogaulus' according to Matthew 1902
  • 'Cerdocyon belongs to Canidae' according to Hamilton-Smith 1839
  • 'Cernictis belongs to Mustelidae' according to Hall 1935
  • 'Cervus elaphus belongs to Cervus' according to Linnaeus 1758
  • 'Cervus hemionus is recombined as Dama hemionus' according to Hall and Kelson 1959
  • 'Chaetodipus belongs to Heteromyidae' according to Hafner and Hafner 1983
  • 'Chiromyoides belongs to Plesiadapidae' according to Stehlin 1916
  • 'Chriacus belongs to Arctocyonidae' according to Cope 1883
  • 'Chriacus orthogonius belongs to Chriacus' according to L. Russell 1929
  • 'Cimolestes magnus belongs to Cimolestes' according to Clemens and Russell 1965
  • 'Cimolodon belongs to Cimolodontidae' according to Marsh 1889
  • 'Cimolomys belongs to Cimolomyidae' according to Marsh 1889
  • 'Clethrionomys belongs to Cricetidae' according to Tilesius 1850
  • 'Clinodon is a subjective synonym of Clinopternodus' according to Asher et al. 2002
  • 'Clinodon gracilis is recombined as Clinopternodus gracilis' according to Asher et al. 2002
  • 'Clinopternodus belongs to Micropternodontidae' according to Clark 1937
  • 'Colodon belongs to Tapiroidea' according to Marsh 1890
  • 'Conacodon belongs to Periptychidae' according to Matthew 1897
  • 'Condylura belongs to Talpidae' according to Illinger 1811
  • 'Conepatus belongs to Mustelidae' according to Gray 1837
  • 'Coryphodon lobatus belongs to Coryphodon' according to Cope 1877
  • 'Coryphodon oweni belongs to Coryphodon' according to Hebert 1856
  • 'Cricetodon belongs to Cricetidae' according to Lartet 1851
  • 'Cryptopterus belongs to Sciuridae' according to Mein 1970
  • 'Cryptotis belongs to Soricidae' according to Pomel 1848
  • 'Cryptotis kansasensis belongs to Cryptotis' according to Hibbard 1957
  • 'Cryptotis meadensis belongs to Cryptotis' according to Hibbard 1953
  • 'Cryptotis peregrina belongs to Cryptotis' according to Woodman and Timm 1999
  • 'Cuon belongs to Canidae' according to Hodgson 1838
  • 'Cuvieronius arellanoi is a nomen dubium' according to Montellano 2002
  • 'Cuvieronius arellanoi belongs to Cuvieronius' according to Ochoterena and Silva 1970
  • 'Cylindrodon belongs to Cylindrodontidae' according to Douglass 1901
  • 'Cynelos belongs to Amphicyonidae' according to Jourdan 1862
  • 'Cynodesmus belongs to Canidae' according to Scott 1893
  • 'Cynomys belongs to Sciuridae' according to Rafinesque 1817
  • 'Cynomys leucurus belongs to Cynomys' according to C. Merriam 1890
  • 'Cynomys mexicanus belongs to Cynomys' according to C. Merriam 1892
  • 'Cynomys parvidens belongs to Cynomys' according to J. Allen 1905
  • 'Cynomys vetus belongs to Cynomys' according to Hibbbard 1942
  • 'Daphoenus belongs to Amphicyonidae' according to Leidy 1853
  • 'Daphoenus lambei belongs to Daphoenus' according to L. Russell 1934
  • 'Deinictis is corrected as Dinictis and belongs to Nimravidae' according to Leidy 1854
  • 'Delphodon praenuntius belongs to Delphodon' according to L. Russell 1928
  • 'Desmodus stocki belongs to Desmodus' according to J. Jones 1958
  • 'Deuterogonodon montanus belongs to Deuterogonodon' according to Gidley 1935
  • 'Dibelodon tropicus is recombined as Cuvieronius tropicus' according to Montellano 2002
  • 'Diceratherium belongs to Rhinocerotidae' according to Marsh 1875
  • 'Dicrostonyx belongs to Cricetidae' according to Gloger 1841
  • 'Dicrostonyx groenlandicus belongs to Dicrostonyx' according to Ehrich et al. 2000
  • 'Dicrostonyx groenlandicus belongs to Dicrostonyx' according to Fedorov and Goropashnaya 1999
  • 'Didelphis virginiana belongs to Didelphis' according to Kerr 1792
  • 'Didelphodon belongs to Stagodontidae' according to Marsh 1889
  • 'Didelphodon padanicus belongs to Didelphodon' according to Cope 1892
  • 'Didelphodus belongs to Cimolestidae' according to Cope 1882
  • 'Didymictis primus is a subjective synonym of Protictis haydenianus' according to Meehan and Wilson 2002
  • 'Didymictis tenuis is recombined as Simpsonictis tenuis' according to Meehan and Wilson 2002
  • 'Didymictis vancleveae belongs to Didymictis' according to Robinson 1966
  • 'Dinictis felina belongs to Dinictis' according to Leidy 1854
  • 'Dinofelis belongs to Felidae' according to Zdansky 1924
  • 'Diplolophus belongs to Protrogomorpha' according to Troxell 1923
  • 'Diplolophus insolens belongs to Diplolophus' according to Troxell 1923
  • 'Dipodomys belongs to Heteromyidae' according to Gray 1841
  • 'Dipodomys agilis belongs to Dipodomys' according to Gambel 1848
  • 'Dipodomys deserti belongs to Dipodomys' according to Stephens 1887
  • 'Dipodomys merriami belongs to Dipodomys' according to Mearns 1890
  • 'Dipodomys ordii belongs to Dipodomys' according to Woodhouse 1853
  • 'Dipodomys spectabilis belongs to Dipodomys' according to Merriam 1890
  • 'Dipoides belongs to Castoridae' according to Jaeger 1835
  • 'Dipoides wilsoni belongs to Dipoides' according to Hibbard 1949
  • 'Diprionomys belongs to Heteromyidae' according to Kellogg 1910
  • 'Diprionomys parvus belongs to Diprionomys' according to Kellogg 1910
  • 'Dissacus belongs to Mesonychidae' according to Cope 1881
  • 'Dolichohippus is a subjective synonym of Equus' according to Groves and Willoughby 1981
  • 'Domnina belongs to Soricidae' according to Cope 1873
  • 'Domnina thompsoni belongs to Domnina' according to Simpson 1941
  • 'Drepanodon belongs to ' according to Nesti 1826
  • 'Drepanomeryx belongs to Dromomerycidae' according to Sinclair 1915
  • 'Ectocion belongs to Meniscotheriidae' according to Cope 1882
  • 'Ectoganus belongs to Stylinodontidae' according to Cope 1874
  • 'Ectoganus copei belongs to Ectoganus' according to Schoch 1981
  • 'Ectoganus gliriformis belongs to Ectoganus' according to Cope 1874
  • 'Elomeryx belongs to Anthracotheriidae' according to Marsh 1894
  • 'Entelodon calkinsi is a nomen dubium' according to Carroll 1988
  • 'Elphidotarsius belongs to Carpolestidae' according to Gidley 1923
  • 'Elphidotarsius florencae belongs to Elphidotarsius' according to Gidley 1923
  • 'Elymys belongs to Zapodidae' according to Korth and Emry 1989
  • 'Elymys complexus belongs to Elymys' according to Korth and Emry 1989
  • 'Enhydra belongs to Mustelidae' according to Fleming 1822
  • 'Enhydra macrodonta belongs to Enhydra' according to Kilmer 1972
  • 'Enhydriodon belongs to Mustelidae' according to Falconer 1868
  • 'Entelodon belongs to Entelodontidae' according to Aymard 1848
  • 'Entoptychus lambdoideus belongs to Entoptychus' according to Cope 1881
  • 'Entoptychus minor belongs to Entoptychus' according to Cope 1881
  • 'Eobasileus belongs to Uintatheriidae' according to Cope 1872
  • 'Eohippus validus is a subjective synonym of Hyracotherium angustidens' according to Kitts 1956
  • 'Eomellivora belongs to Mustelidae' according to Zdansky 1924
  • 'Eomellivora wimani belongs to Eomellivora' according to Zdansky 1924
  • 'Eomoropus belongs to Chalicotherioidea' according to Osborn 1913
  • 'Eomys belongs to Eomyidae' according to Schlosser 1884
  • 'Epoicotherium belongs to Epoicotheriidae' according to Simpson 1927
  • 'Equus jubatus belongs to Equus' according to Hay 1927
  • 'Equus nearcticus belongs to Equus' according to Blake 1863
  • 'Equus parastylidens belongs to Equus' according to Mooser 1959
  • 'Equus pectinatus belongs to Equus' according to Cope 1901
  • 'Eremotherium belongs to Megatheriidae' according to Spillmann 1948
  • 'Erethizon belongs to Erethizontidae' according to Cuvier 1822
  • 'Esthonyx belongs to Esthonychidae' according to Cope 1874
  • 'Esthonyx bisulcatus belongs to Esthonyx' according to Cope 1874
  • 'Eucastor belongs to Castoridae' according to Allen 1877
  • 'Euceratherium belongs to Bovidae' according to Furlong and Sinclair 1904
  • 'Euceratherium collinum belongs to Euceratherium' according to Furlong and Sinclair 1904
  • 'Euhapsis belongs to Castoridae' according to Peterson 1905
  • 'Eumys belongs to Cricetidae' according to Leidy 1856
  • 'Eumys lockingtonianus is recombined as Leidymys lockingtonianus' according to Korth 1992
  • 'Eumys woodi is recombined as Paciculus woodi' according to Korth 1992
  • 'Eumysops simplex is recombined as Simimys simplex' according to Kelly 1992
  • 'Eusmilus belongs to Nimravidae' according to Gervais 1876
  • 'Felis (Lynx) canadensis belongs to Felis (Lynx)' according to Kerr 1792
  • 'Felis pardalis is recombined as Leopardus pardalis' according to Ewer 1973
  • 'Felis studeri is recombined as Miracinonyx studeri'
  • 'Florentiamys belongs to Florentiamyidae' according to A. Wood 1936
  • 'Florentiamys loomisi belongs to Florentiamys' according to A. Wood 1936
  • 'Floridatragulus belongs to Camelidae' according to T. White 1940
  • 'Forstercooperia belongs to Hyracodontidae' according to H. Wood 1939
  • 'Forstercooperia minuta belongs to Forstercooperia' according to Lucas et al. 1981
  • 'Gaillardia belongs to Talpidae' according to Matthew 1932
  • 'Gaillardia thomsoni belongs to Gaillardia' according to Matthew 1932
  • 'Geomys belongs to Geomyidae' according to Rafinesque 1817
  • 'Geomys pinetis belongs to Geomys' according to Rafinesque 1817
  • 'Glaucomys belongs to Sciuridae' according to Thomas 1908
  • 'Glossotherium belongs to Mylodontidae' according to Owen 1840
  • 'Glossotherium garbanii is recombined as Paramylodon garbanii' according to W. Miller and Carranza-Castaneda 1998
  • 'Glossotherium garbanii belongs to Glossotherium' according to Montellano and Carranza-Castaneda 1981
  • 'Glyptotherium belongs to Glyptodontidae' according to Osborn 1903
  • 'Glyptotherium arizonae belongs to Glyptotherium' according to Gidley 1926
  • 'Glyptotherium texanum belongs to Glyptotherium' according to Osborn 1903
  • 'Gobiconodon belongs to Amphilestinae' according to Trofimov 1978
  • 'Gomphotherium belongs to Gomphotheriidae' according to Burmeister 1837
  • 'Gomphotherium elegans is a nomen dubium' according to Hibbard 1952
  • 'Grangeria belongs to Schizotheriinae' according to Zdansky 1930
  • 'Gregorymys belongs to Geomyidae' according to A. Wood 1936
  • 'Gulo belongs to Mustelidae' according to Storr 1780
  • 'Hapalodectes anthracinus belongs to Hapalodectes' according to Zhou and Gingerich 1991
  • 'Haplaletes serior belongs to Haplaletes' according to Gazin 1956
  • 'Haplocerus is a subjective synonym of Oreamnos' according to Hall and Kelson 1959
  • 'Haplocerus is a subjective synonym of Oreamnos' according to Hall and Kellogg 1955
  • 'Haplomys belongs to Allomyidae' according to Miller and Gidley 1918
  • 'Harrymys canadensis belongs to Harrymys' according to Korth 1995
  • 'Heliscomys belongs to Protrogomorpha' according to Cope 1873
  • 'Heliscomys woodi belongs to Heliscomys' according to McGrew 1941
  • 'Hemiacodon belongs to Omomyidae' according to Marsh 1872
  • 'Hemiauchenia belongs to Camelidae' according to Gervais and Ameghino 1880
  • 'Hemicyon belongs to Ursidae' according to Lartet 1851
  • 'Heptodon belongs to Ceratomorpha' according to Cope 1882
  • 'Herpailurus belongs to Felinae' according to Severtzov 1858
  • 'Hesperosorex belongs to Soricidae' according to Hibbard 1957
  • 'Hesperosorex lovei belongs to Hesperosorex' according to Hibbard 1957
  • 'Hipparion belongs to Equidae' according to de Christol 1832
  • 'Hipparion (Nannippus) was reranked as Nannippus and belongs to Equidae' according to McGrew 1936
  • 'Hippotherium belongs to Equidae' according to Kaup 1833
  • 'Hippotherium belongs to Hipparionini'
  • 'Hippotherium rectidens is a subjective synonym of Neohipparion eurystyle' according to Carranza-Castaneda 1993
  • 'Hippotigris is a subjective synonym of Equus' according to Groves and Willoughby 1981
  • 'Hippotigris is a subjective synonym of Equus' according to Azzaroli 1966
  • 'Hippotigris is a subjective synonym of Equus' according to Ellerman et al. 1953
  • 'Hippotigris is a subjective synonym of Equus' according to Lundholm 1952
  • 'Hippotigris is a subjective synonym of Equus' according to Lydekker 1916
  • 'Hippotigris is a subjective synonym of Equus' according to Trouessart 1905
  • 'Hippotigris is a subjective synonym of Equus' according to Sclater 1900
  • 'Hippotigris belongs to ' according to Trumler 1961
  • 'Homacodon belongs to Artiodactyla' according to Marsh 1872
  • 'Homogalax belongs to Isectolophidae' according to Hay 1899
  • 'Homotherium belongs to Felidae' according to Fabrini 1890
  • 'Hoplictis belongs to Mustelidae' according to Ginsburg and Morales 1992
  • 'Hyaenodon belongs to Hyaenodontidae' according to Laizer and Parieu 1838
  • 'Hyaenodon mustelinus belongs to Hyaenodon' according to Scott 1894
  • 'Hydrochoerus belongs to Hydrochoeridae' according to Brisson 1762
  • 'Hyopsodus acolytus is recombined as Promioclaenus acolytus' according to de Muizon and Cifelli 2000
  • 'Hypertragulus belongs to Hypertragulidae' according to Cope 1873
  • 'Hypertragulus heikeni belongs to Hypertragulus' according to Ferrusquia 1969
  • 'Hypisodus belongs to Hypertragulidae' according to Cope 1873
  • 'Hypolagus furlongi belongs to Hypolagus' according to Gazin 1934
  • 'Hypolagus regalis belongs to Hypolagus' according to Hibbard 1939
  • 'Hyrachyus belongs to Rhinocerotoidea' according to Leidy 1871
  • 'Hyracodon browni belongs to Hyracodon' according to L. Russell 1934
  • 'Hyracotherium belongs to Equidae' according to Owen 1841
  • 'Hystricops browni belongs to Hystricops' according to Shotwell 1963
  • 'Ictops bullatus belongs to Ictops' according to Matthew 1899
  • 'Ilingoceros belongs to Antilocapridae' according to J. Merriam 1909
  • 'Indarctos belongs to Ursidae' according to Pilgrim 1913
  • 'Ischyromys belongs to Ischyromyidae' according to Leidy 1856
  • 'Ischyrotomus littoralis belongs to Ischyrotomus' according to R. Wilson 1949
  • 'Isectolophus belongs to Isectolophidae' according to Scott and Osborn 1887
  • 'Jacobsomys belongs to Cricetidae' according to Czaplewski 1987
  • 'Jacobsomys verdensis belongs to Jacobsomys' according to Czaplewski 1987
  • 'Jepsenella praepropera belongs to Jepsenella' according to Simpson 1940
  • 'Kansasimys belongs to Eomyidae' according to A. Wood 1936
  • 'Kansasimys dubius belongs to Kansasimys' according to A. Wood 1936
  • 'Kentrogomphios is a subjective synonym of Micropternodus' according to Asher et al. 2002
  • 'Kentrogomphios strophensis is recombined as Micropternodus strophensis' according to Asher et al. 2002
  • 'Labidolemur major belongs to Labidolemur' according to West 1972
  • 'Lagurus belongs to Cricetidae' according to Gloger 1841
  • 'Lantanotherium [misspelled as Lanthanotherium] belongs to Erinaceidae' according to Filhol 1888
  • 'Lasiopodomys belongs to Cricetidae' according to Lataste 1887
  • 'Lemmiscus belongs to Cricetidae' according to Goldman 1941
  • 'Lemmus belongs to Cricetidae' according to Link 1795
  • 'Lemmus sibiricus belongs to Lemmus' according to Ognev 1947
  • 'Leptarctus belongs to Mustelidae' according to Leidy 1856
  • 'Leptauchenia belongs to Merycoidodontidae' according to Leidy 1856
  • 'Leptictis belongs to Leptictidae' according to Leidy 1868
  • 'Leptictis haydeni belongs to Leptictis' according to Leidy 1868
  • 'Leptochoerus belongs to Leptochoeridae' according to Leidy 1856
  • 'Leptomeryx belongs to Leptomerycidae' according to Leidy 1853
  • 'Leptoreodon belongs to Protoceratidae' according to Wortman 1898
  • 'Leptotomus coelumensis is recombined as Mytonomys coelumensis' according to Korth 1988
  • 'Leptotomus costilloi is recombined as Notoparamys costilloi' according to Wahlert 2000
  • 'Leptotragulus belongs to Protoceratidae' according to Scott and Osborn 1887
  • 'Lepus alleni belongs to Lepus' according to Mearns 1890
  • 'Lepus americanus belongs to Lepus' according to Erxleben 1777
  • 'Lepus aquaticus is recombined as Sylvilagus aquaticus' according to Halanych and T. Robinson 1997
  • 'Lepus aquaticus is recombined as Sylvilagus aquaticus' according to T. Robinson 1984
  • 'Lepus arcticus belongs to Lepus' according to Ross 1819
  • 'Lepus californicus belongs to Lepus' according to Gray 1837
  • 'Lepus callotis belongs to Lepus' according to Wagler 1830
  • 'Lepus townsendii belongs to Lepus' according to Bachman 1839
  • 'Limnocyon belongs to Limnocyonidae' according to Marsh 1872
  • 'Limnonyx belongs to Mustelidae' according to Crusafont Pairo 1950
  • 'Liodontia belongs to Aplodontidae' according to Miller and Gidley 1918
  • 'Lophiotherium vasacciense is recombined as Hyracotherium vasacciense' according to Robinson 1966
  • 'Lophiotherium vasacciense is recombined as Hyracotherium vasacciense' according to Kitts 1956
  • 'Lophiotherium vasacciense is recombined as Hyracotherium vasacciense' according to Kelley and A. Wood 1954
  • 'Loveina zephyri belongs to Loveina' according to Simpson 1940
  • 'Lutra belongs to Mustelidae' according to Brisson 1762
  • 'Macrocranion belongs to Dormaaliidae' according to Weitzel 1949
  • 'Macrognathomys belongs to Zapodidae' according to Hall 1930
  • 'Macrognathomys nanus belongs to Macrognathomys' according to Hall 1930
  • 'Mammut belongs to Mammutidae' according to Blumenbach 1799
  • 'Mammuthus belongs to Elephantidae' according to Brookes 1828
  • 'Marmota belongs to Sciuridae' according to Frisch 1775
  • 'Marsholestes belongs to Geolabididae' according to McKenna 1992
  • 'Martes belongs to Mustelidae' according to Frisch 1775
  • 'Martes kinseyi belongs to Martes' according to Gidley 1927
  • 'Martes ogygia is recombined as Plionictis ogygia' according to Sutton 1977
  • 'Martes ogygia is recombined as Plionictis ogygia' according to Storer 1975
  • 'Martes oregonensis is recombined as Plionictis oregonensis' according to Sutton 1977
  • 'Martinogale nambiana belongs to Martinogale' according to Hall 1930
  • 'Mazama dorsata is a subjective synonym of Oreamnos americanus' according to Hall and Kelson 1959
  • 'Mazama dorsata is a subjective synonym of Oreamnos americanus' according to Hall and Kellogg 1955
  • 'Megacamelus belongs to Camelidae' according to Frick 1929
  • 'Megalagus belongs to Leporidae' according to Walker 1931
  • 'Megalagus dawsoni belongs to Megalagus' according to Black 1961
  • 'Megalamynodon belongs to Amynodontidae' according to H. Wood 1945
  • 'Megalamynodon regalis belongs to Megalamynodon' according to H. Wood 1945
  • 'Megalesthonyx belongs to Esthonychidae' according to Rose 1971
  • 'Megalesthonyx hopsoni belongs to Megalesthonyx' according to Rose 1971
  • 'Megalonyx belongs to Megalonychidae' according to Harlan 1825
  • 'Megalonyx leptostomus belongs to Megalonyx' according to Cioe 1893
  • 'Megalonyx wheatleyi belongs to Megalonyx' according to Cope 1871
  • 'Megantereon belongs to Felidae' according to Croizet and Jobert 1828
  • 'Meniscoessus belongs to Taeniolabididae' according to Cope 1882
  • 'Meniscomys milleri is recombined as Crucimys milleri' according to Rensberger 1982
  • 'Meniscotherium belongs to Meniscotheriidae' according to Cope 1874
  • 'Meniscotherium chamense belongs to Meniscotherium' according to Cope 1874
  • 'Mentoclaenodon belongs to Arctocyonidae' according to Weigelt 1960
  • 'Mephitis belongs to Mustelidae' according to Geoffroy and Cuvier 1795
  • 'Mephitis macroura belongs to Mephitis' according to Lichtenstein 1832
  • 'Merychippus belongs to Equidae' according to Leidy 1856
  • 'Merychippus insignis belongs to Merychippus' according to Hay 1930
  • 'Merychyus belongs to Merycoidodontidae' according to Leidy 1858
  • 'Merycochoerus belongs to Merycoidodontidae' according to Leidy 1858
  • 'Mesocyon robustus is recombined as Enhydrocyon robustus' according to C. C. Swisher 1982
  • 'Mesocyon robustus is recombined as Enhydrocyon robustus' according to C. C. Swisher 1982
  • 'Mesodma thompsoni belongs to Mesodma' according to Clemens 1964
  • 'Mesogaulus belongs to Mylagaulidae' according to Riggs 1899
  • 'Mesogaulus ballensis belongs to Mesogaulus' according to Riggs 1899
  • 'Microdipodops belongs to Geomyidae' according to Merriam 1891
  • 'Microeutypomys belongs to Eutypomyidae' according to Walton 1993
  • 'Microeutypomys karenae belongs to Microeutypomys' according to Walton 1993
  • 'Microparamys sambucus belongs to Microparamys' according to Korth and Emry 1989
  • 'Microsyops belongs to Microsyopidae' according to Leidy 1872
  • 'Microtoscoptes belongs to Cricetidae' according to Schaub 1934
  • 'Microtus belongs to Cricetidae' according to Schrank 1798
  • 'Microtus miurus belongs to Microtus' according to Osgood 1901
  • 'Mimomys belongs to Cricetidae' according to Forsyth Major 1902
  • 'Mioclaenus lemuroides is recombined as Promioclaenus lemuroides' according to de Muizon and Cifelli 2000
  • 'Miolabis belongs to Camelidae' according to Hay 1899
  • 'Miomustela belongs to Mustelidae' according to Hall 1930
  • 'Mithrandir belongs to Periptychidae' according to Cifelli 1983
  • 'Mixodectes belongs to Mixodectidae' according to Cope 1883
  • 'Mixotoxodon belongs to Toxodontidae' according to Frank 1957
  • 'Monosaulax skinneri belongs to Monosaulax' according to Stout 1999
  • 'Montanamus belongs to Eomyidae' according to Ostrander 1983
  • 'Montanamus bjorki belongs to Montanamus' according to Ostrander 1983
  • 'Mormoops megaphylla belongs to Mormoops' according to Peters 1864
  • 'Mus oeconomus belongs to Mus' according to Pallas 1776
  • 'Mustela eversmanni belongs to Mustela' according to Lesson 1827
  • 'Mustela frenata belongs to Mustela' according to Lichtenstein 1831
  • 'Mustela nivalis belongs to Mustela' according to Linnaeus 1766
  • 'Mylagaulus belongs to Mylagaulidae' according to Cope 1878
  • 'Mylohyus belongs to Tayassuidae' according to Cope 1869
  • 'Myotis grisecens belongs to Myotis' according to A. Howell 1909
  • 'Myotis mangamolaris belongs to Myotis' according to Choate and Hall 1967
  • 'Myotis rectidens belongs to Myotis' according to Choate and Hall 1967
  • 'Myotis sodalis belongs to Myotis' according to Miller and G. Allen 1928
  • 'Myotis thysanodes belongs to Myotis' according to Miller 1897
  • 'Myrmecoboides belongs to Leptictidae' according to Gidley 1915
  • 'Myrmecoboides montanensis belongs to Myrmecoboides' according to Gidley 1915
  • 'Mystipterus belongs to Talpidae' according to Hall 1930
  • 'Mystipterus vespertilio belongs to Mystipterus' according to Hall 1930
  • 'Nanomeryx caudatus is recombined as Homacodon caudatus' according to Lucas 1983
  • 'Nanotragulus belongs to Hypertragulidae' according to Lull 1922
  • 'Napaeozapus belongs to Zapodidae' according to G. Miller 1900
  • 'Nasua belongs to Procyonidae' according to Storr 1780
  • 'Neochoerus belongs to Hydrochoeridae' according to Hay 1926
  • 'Neofiber belongs to Cricetidae' according to F. W. True 1884
  • 'Neofiber alleni belongs to Neofiber' according to True 1884
  • 'Neofiber leonardi belongs to Neofiber' according to Hibbard 1943
  • 'Neoplagiaulax belongs to Ptilodontidae' according to Lemoine 1882
  • 'Neotamias belongs to ' according to Jameson 1999
  • 'Neotoma belongs to Cricetidae' according to Say and Ord 1825
  • 'Neotoma albigula belongs to Neotoma' according to Hartley 1894
  • 'Neotoma fuscipes belongs to Neotoma' according to Baird 1858
  • 'Neotoma lepida belongs to Neotoma' according to Thomas 1893
  • 'Neotoma mexicana belongs to Neotoma' according to Baird 1855
  • 'Neotoma micropus belongs to Neotoma' according to Baird 1855
  • 'Neotoma ozarkensis belongs to Neotoma' according to Brown 1908
  • 'Neotoma stephensi belongs to Neotoma' according to Goldman 1905
  • 'Neotomodon belongs to ' according to Merriam 1898
  • 'Neotomodon alstoni belongs to Neotomodon' according to Merriam 1898
  • 'Neurotrichus belongs to Talpidae' according to Gunther 1880
  • 'Niglarodon belongs to Aplodontidae' according to Black 1961
  • 'Niglarodon koerneri belongs to Niglarodon' according to Black 1961
  • 'Nimravus belongs to Nimravidae' according to Cope 1879
  • 'Niptomomys favorum belongs to Niptomomys' according to Strait 2001
  • 'Nothrotheriops belongs to Megatheriidae' according to Paula Couto 1971
  • 'Notiosorex belongs to Soricidae' according to Baird 1877
  • 'Notiotitanops mississippiensis belongs to Notiotitanops' according to Gazin and Sullivan 1942
  • 'Nyctitherium belongs to Nyctitheriidae' according to Marsh 1872
  • 'Ochotona belongs to Ochotonidae' according to Link 1795
  • 'Ochrotomys belongs to Cricetidae' according to Hooper 1958
  • 'Odocoileus belongs to Cervidae' according to Rafinesque 1832
  • 'Odocoileus brachyodontus belongs to Odocoileus' according to Oelrich 1953
  • 'Oligobunis belongs to Mustelidae' according to Cope 1881
  • 'Onager is a subjective synonym of Equus' according to Groves and Willoughby 1981
  • 'Ondatra belongs to Cricetidae' according to Link 1795
  • 'Onychomys belongs to Cricetidae' according to Baird 1858
  • 'Oodectes belongs to Miacidae' according to Wortman 1901
  • 'Oreamnos belongs to Bovidae' according to Rafinesque 1817
  • 'Oregonomys belongs to Heteromyidae' according to Martin 1984
  • 'Oregonomys pebblespringsensis belongs to Oregonomys' according to Martin 1984
  • 'Oreolagus nebrascensis belongs to Oreolagus' according to McGrew 1941
  • 'Oromeryx belongs to Oromerycidae' according to Marsh 1894
  • 'Orthogeomys belongs to Geomyidae' according to C. Merriam 1895
  • 'Oryzomys belongs to Cricetidae' according to Baird 1857
  • 'Oryzomys palustris belongs to Oryzomys' according to Harlan 1837
  • 'Osmotherium belongs to Mustelidae' according to Cope 1896
  • 'Osmotherium spelaeum belongs to Osmotherium' according to Cope 1896
  • 'Ovibos belongs to Bovidae' according to Blainville 1816
  • 'Ovis canadensis belongs to Ovis' according to Shaw 1804
  • 'Ovis dalli belongs to Ovis' according to Nelson 1884
  • 'Ovis montanus is a subjective synonym of Oreamnos americanus' according to Hall and Kelson 1959
  • 'Ovis montanus is a subjective synonym of Oreamnos americanus' according to Hall and Kellogg 1955
  • 'Oxyacodon belongs to Periptychidae' according to Osborn and Earle 1895
  • 'Oxyacodon apiculatus belongs to Oxyacodon' according to Osborn and Earle 1895
  • 'Oxyaena forcipata belongs to Oxyaena' according to Cope 1874
  • 'Pachyaena gigantea belongs to Pachyaena' according to Osborn and Wortman 1892
  • 'Paciculus belongs to Cricetidae' according to Cope 1879
  • 'Paciculus montanus belongs to Paciculus' according to Black 1961
  • 'Pagonomus belongs to Pantolestidae' according to D. Russell 1964
  • 'Palaechthon alticuspis belongs to Palaechthon' according to Gidley 1923
  • 'Palaeocastor belongs to Castoridae' according to Leidy 1869
  • 'Palaeoerinaceus belongs to ' according to Filhol 1897
  • 'Palaeogale belongs to Carnivora' according to von Meyer 1846
  • 'Palaeolagus belongs to Leporidae' according to Leidy 1856
  • 'Palaeolagus haydeni belongs to Palaeolagus' according to Leidy 1856
  • 'Palaeolagus hypsodus belongs to Palaeolagus' according to Schlaikjer 1935
  • 'Palaeolama belongs to Camelidae' according to Gervais 1869
  • 'Palaeonictis belongs to Oxyaenidae' according to De Blainville 1842
  • 'Palaeonictis occidentalis belongs to Palaeonictis' according to Osborn 1892
  • 'Palaeoryctes belongs to Palaeoryctidae' according to Matthew 1913
  • 'Palaeoryctes puercensis belongs to Palaeoryctes' according to Matthew 1913
  • 'Palaeosinopa belongs to Pantolestidae' according to Matthew 1901
  • 'Pampatherium belongs to Dasypodidae' according to Ameghino 1891
  • 'Panolax belongs to Leporidae' according to Cope 1874
  • 'Panthera belongs to Felidae' according to Oken 1816
  • 'Pantolambda cavirictus belongs to Pantolambda' according to Cope 1883
  • 'Pantolestes belongs to Pantolestidae' according to Cope 1872
  • 'Pappogeomys belongs to Geomyidae' according to C. Merriam 1895
  • 'Pappogeomys alcorni belongs to Pappogeomys' according to R. Russell 1957
  • 'Paradjidaumo belongs to Eomyidae' according to Burke 1934
  • 'Paradjidaumo validus belongs to Paradjidaumo' according to Korth 1980
  • 'Parahyus belongs to Helohyidae' according to Marsh 1876
  • 'Parailurus belongs to Procyonidae' according to Schlosser 1899
  • 'Paramys belongs to Ischyromyidae' according to Leidy 1871
  • 'Paramys compressidens belongs to Paramys' according to Korth 1988
  • 'Paramys copei belongs to Paramys' according to Loomis 1907
  • 'Paramys delicatus belongs to Paramys' according to Leidy 1871
  • 'Paramys excavatus belongs to Paramys' according to Loomis 1907
  • 'Paramys petersoni is recombined as Pseudotomus petersoni' according to Wahlert 2000
  • 'Paranamatomys belongs to Eomyidae' according to Korth 1992
  • 'Parascalops belongs to Talpidae' according to True 1894
  • 'Parataxidea belongs to Mustelidae' according to Zdansky 1924
  • 'Parectypodus lovei is recombined as Ectypodus lovei' according to Storer 1993
  • 'Paromomys belongs to Paromomyidae' according to Gidley 1923
  • 'Paromomys alticuspis belongs to Paromomys' according to Gidley 1923
  • 'Paromomys depressidens belongs to Paromomys' according to Gidley 1923
  • 'Paromomys maturus belongs to Paromomys' according to Gidley 1923
  • 'Patriofelis belongs to Oxyaenidae' according to Leidy 1870
  • 'Patriofelis ulta belongs to Patriofelis' according to Leidy 1870
  • 'Pauromys exallos belongs to Pauromys' according to Korth and Emry 1989
  • 'Pauromys simplex belongs to Pauromys' according to Walton 1993
  • 'Pauromys texensis belongs to Pauromys' according to Walton 1993
  • 'Pecari belongs to Tayassuidae' according to Reichenbach 1835
  • 'Pediohyus is a subjective synonym of Hesperhys' according to McKenna and Bell 1997
  • 'Pediohyus is a subjective synonym of Desmathyus' according to Dalquest and Mooser 1980
  • 'Pediohyus ferus is recombined as Hesperhys ferus' according to McKenna and Bell 1997
  • 'Pediohyus ferus is recombined as Desmathyus ferus' according to Dalquest and Mooser 1980
  • 'Pelycodus schidelerorum is a subjective synonym of Pelycodus danielsae' according to Gunnell 2002
  • 'Peraceras belongs to Rhinocerotidae' according to Cope 1880
  • 'Peratherium belongs to Didelphidae' according to Aymard 1850
  • 'Perchoerus belongs to Tayassuidae' according to Leidy 1869
  • 'Perognathus belongs to Heteromyidae' according to Maximillian 1839
  • 'Perognathus dunklei belongs to Perognathus' according to Hibbard 1939
  • 'Perognathus flavescens belongs to Perognathus' according to Osgood 1900
  • 'Perognathus flavus belongs to Perognathus' according to Baird 1855
  • 'Perognathus inornatus belongs to Perognathus' according to Merriam 1889
  • 'Perognathus mclaughlini belongs to Perognathus' according to Hibbard 1949
  • 'Perognathus merriami belongs to Perognathus' according to Allen 1892
  • 'Perognathus trojectioansrum belongs to Perognathus' according to Korth 1979
  • 'Peromyscus belongs to Cricetidae' according to Gloger 1841
  • 'Peromyscus antiquus belongs to Peromyscus' according to Kellogg 1910
  • 'Peromyscus anyapahensis belongs to Peromyscus' according to J. White 1966
  • 'Peromyscus cragini belongs to Peromyscus' according to Hibbard 1944
  • 'Peromyscus cumberlandensis belongs to Peromyscus' according to Guilday and Handley 1967
  • 'Peromyscus imperfectus belongs to Peromyscus' according to Dice 1925
  • 'Peromyscus pectoralis belongs to Peromyscus' according to Osgood 1904
  • 'Petenyia belongs to Soricidae' according to Kormos 1934
  • 'Phaiomys belongs to ' according to Blyth 1863
  • 'Phenacodus belongs to Phenacodontidae' according to Cope 1873
  • 'Phenacodus intermedius belongs to Phenacodus' according to Bown 1979
  • 'Phenacodus intermedius is a subjective synonym of Phenacodus primaeous' according to West 1976
  • 'Phenacomys belongs to Cricetidae' according to Merriam 1889
  • 'Phenacomys gryci belongs to Phenacomys' according to Repenning 1987
  • 'Phenacomys intermedius belongs to Phenacomys' according to Merriam 1889
  • 'Philotrox belongs to Canidae' according to J. Merriam 1906
  • 'Phlaocyon belongs to Canidae' according to Matthew 1899
  • 'Phlaocyon leucosteus belongs to Phlaocyon' according to Matthew 1899
  • 'Phlaocyon marslandensis belongs to Phlaocyon' according to McGrew 1941
  • 'Phoberocyon belongs to Ursidae' according to Ginsburg 1955
  • 'Plagioctenodon belongs to Nyctitheriidae' according to Bown 1979
  • 'Plagioctenodon krausae belongs to Plagioctenodon' according to Bown 1979
  • 'Plagioctenoides belongs to Nyctitheriidae' according to Bown 1979
  • 'Plagioctenoides microlestes belongs to Plagioctenoides' according to Bown 1979
  • 'Platybelodon belongs to Gomphotheriidae' according to Borissiak 1928
  • 'Platygonus belongs to Tayassuidae' according to Le Conte 1848
  • 'Platygonus compressus belongs to Platygonus' according to J. L. Le Conte 1848
  • 'Plecotus townsendii belongs to Plecotus' according to Cooper 1837
  • 'Plesiadapis belongs to Plesiadapidae' according to Gervais 1877
  • 'Plesictis belongs to Procyonidae' according to Pomel 1846
  • 'Plesiogulo belongs to Mustelidae' according to Zdansky 1934
  • 'Plesiosminthus belongs to Zapodidae' according to Viret 1926
  • 'Plesiosorex belongs to Plesiosoricidae' according to Pomel 1848
  • 'Plesiosorex coloradensis belongs to Plesiosorex' according to R. Wilson 1960
  • 'Plesispermophilus belongs to Allomyidae' according to Filhol 1883
  • 'Pliauchenia belongs to Camelidae' according to Cope 1875
  • 'Pliogale belongs to Mustelidae' according to Hall 1930
  • 'Pliolemmus belongs to Cricetidae' according to Hibbard 1937
  • 'Plionarctos belongs to Ursidae' according to Frick 1926
  • 'Plionarctos edensis belongs to Plionarctos' according to Frick 1926
  • 'Plithocyon belongs to Ursidae' according to Ginsburg 1955
  • 'Poebrotherium belongs to Camelidae' according to Leidy 1847
  • 'Potamotelses belongs to Potamotelsidae' according to Fox 1972
  • 'Potamotelses aquilensis belongs to Potamotelses' according to Fox 1972
  • 'Praeovibos belongs to Bovidae' according to Staudinger 1908
  • 'Praeovibos priscus belongs to Praeovibos' according to Staudinger 1908
  • 'Pratilepus belongs to Leporidae' according to Hibbard 1939
  • 'Pratilepus kansasensis belongs to Pratilepus' according to Hibbard 1939
  • 'Presbymys belongs to Protoptychidae' according to R. Wilson 1949
  • 'Presbymys lophatus belongs to Presbymys' according to R. Wilson 1949
  • 'Priscocamelus belongs to Camelidae' according to Stevens 1969
  • 'Procadurcodon belongs to Amynodontidae' according to Gromova 1960
  • 'Procamelus belongs to Camelidae' according to Leidy 1858
  • 'Procaprolagus belongs to Leporidae' according to Gureev 1960
  • 'Procynodictis belongs to Miacidae' according to Wortman and Matthew 1899
  • 'Procyon belongs to Procyonidae' according to Storr 1780
  • 'Prodiacodon belongs to Leptictidae' according to Matthew 1929
  • 'Prodinoceras belongs to Prodinoceratidae' according to Matthew et al. 1929
  • 'Prodipodomys belongs to Heteromyidae' according to Hibbard 1939
  • 'Proheteromys sulculus belongs to Proheteromys' according to R. Wilson 1960
  • 'Promioclaenus belongs to Mioclaenidae' according to Trouessart 1904
  • 'Promylagaulus belongs to Mylagaulidae' according to McGrew 1941
  • 'Promylagaulus riggsi belongs to Promylagaulus' according to McGrew 1941
  • 'Pronothodectes belongs to Plesiadapidae' according to Gidley 1923
  • 'Pronothodectes matthewi belongs to Pronothodectes' according to Gidley 1923
  • 'Prosciurus albiclivus belongs to Prosciurus' according to Korth 1994
  • 'Prosciurus lohiculus belongs to Prosciurus' according to Matthew and Granger 1923
  • 'Prosigmodon holocuspis belongs to Prosigmodon' according to Czaplewski 1987
  • 'Protapirus belongs to Tapiridae' according to Filhol 1877
  • 'Protemnocyon belongs to Amphicyonidae' according to Hatcher 1901
  • 'Proterix belongs to Erinaceidae' according to Matthew 1903
  • 'Proterix loomisi belongs to Proterix' according to Matthew 1903
  • 'Protictis vanvaleni is recombined as Intyrictis vanvaleni' according to Meehan and Wilson 2002
  • 'Protitanops belongs to Brontotheridae' according to Stock 1936
  • 'Protolabis belongs to Camelidae' according to Cope 1876
  • 'Protoprocyon belongs to Procyonidae' according to Linares 1982
  • 'Protoprocyon savagei belongs to Protoprocyon' according to Linares 1982
  • 'Protoptychus belongs to Protoptychidae' according to Scott 1895
  • 'Protoptychus hatcheri belongs to Protoptychus' according to Scott 1895
  • 'Protoreodon belongs to Agriochoeridae' according to Scott and Osborn 1887
  • 'Protoreodon parvus belongs to Protoreodon' according to Scott and Osborn 1887
  • 'Protospermophilus belongs to Sciuridae' according to M. Bryant 1945
  • 'Protylopus belongs to Camelidae' according to Wortman 1898
  • 'Protylopus petersoni belongs to Protylopus' according to Wortman 1898
  • 'Proviverra belongs to Hyaenodontidae' according to Rutimeyer 1862
  • 'Pseudaelurus belongs to Felidae' according to Gervais 1848
  • 'Pseudaelurus hibbardi belongs to Pseudaelurus' according to Dalquest 1969
  • 'Pseudaelurus pedionomus belongs to Pseudaelurus' according to Macdonald 1948
  • 'Pseudocylindrodon belongs to Cylindrodontidae' according to Burke 1935
  • 'Pseudocylindrodon medius belongs to Pseudocylindrodon' according to Burke 1938
  • 'Pseudocylindrodon neglectus belongs to Pseudocylindrodon' according to Burke 1935
  • 'Pseudocyon belongs to Amphicyonidae' according to Lartet 1851
  • 'Pseudotetonius is a subjective synonym of Tetonius' according to Gingerich 1980
  • 'Pseudotetonius is a subjective synonym of Tetonius' according to Gingerich 1981
  • 'Pseudotheridomys belongs to Eomyidae' according to Schlosser 1926
  • 'Pseudotheridomys hesperus belongs to Pseudotheridomys' according to R. Wilson 1960
  • 'Pseudotrimylus belongs to Soricidae' according to Gureev 1971
  • 'Psittacotherium belongs to Stylinodontidae' according to Cope 1882
  • 'Psittacotherium multifragum belongs to Psittacotherium' according to Cope 1882
  • 'Pterodon belongs to Hyaenodontidae' according to Blainville 1839
  • 'Ptilodus belongs to Ptilodontidae' according to Cope 1881
  • 'Puma belongs to Felidae' according to Jardine 1834
  • 'Putorius nigripes belongs to Putorius' according to Audubon and Bachman 1851
  • 'Ragnarok is a subjective synonym of Baioconodon' according to de Muizon and Cifelli 2000
  • 'Ragnarok engdahli is recombined as Baioconodon engdahli' according to de Muizon and Cifelli 2000
  • 'Ragnarok harbichti is a subjective synonym of Baioconodon nordicus' according to de Muizon and Cifelli 2000
  • 'Ragnarok wovokae is recombined as Baioconodon wovokae' according to de Muizon and Cifelli 2000
  • 'Rangifer belongs to Cervidae' according to Hamilton-Smith 1827
  • 'Reithrodontomys belongs to Cricetidae' according to Giglioli 1874
  • 'Reithrodontomys fulvescens belongs to Reithrodontomys' according to Allen 1894
  • 'Rhynchotherium belongs to Gomphotheriidae' according to Falconer 1868
  • 'Saiga belongs to Bovidae' according to Gray 1843
  • 'Saxonella belongs to Plesiadapidae' according to D. Russell 1964
  • 'Scalopoides belongs to Talpidae' according to R. Wilson 1960
  • 'Scalopoides isodens belongs to Scalopoides' according to R. Wilson 1960
  • 'Scalopus belongs to Talpidae' according to Geoffroy 1803
  • 'Scapanus belongs to Talpidae' according to Pomel 1848
  • 'Scapanus orarius belongs to Scapanus' according to True 1896
  • 'Schizodontomys belongs to Heteromyidae' according to Rensberger 1973
  • 'Schizodontomys greeni belongs to Schizodontomys' according to Rensberger 1973
  • 'Schizodontomys sulcidens belongs to Schizodontomys' according to Rensberger 1973
  • 'Schizotherium belongs to Chalicotheriidae' according to Gervais 1879
  • 'Sciuravus bridgeri belongs to Sciuravus' according to R. Wilson 1938
  • 'Sciuravus eucristadens belongs to Sciuravus' according to Burke 1937
  • 'Sciuropterus belongs to Sciuridae' according to Cuvier 1825
  • 'Sciurus (Prosciurus) was reranked as Prosciurus and belongs to Allomyidae' according to Matthew 1910
  • 'Sciurus aberti belongs to Sciurus' according to Woodhouse 1853
  • 'Sciurus alleni belongs to Sciurus' according to Nelson 1898
  • 'Sciurus arizonensis belongs to Sciurus' according to Coues 1867
  • 'Sciurus carolinensis belongs to Sciurus' according to Gmelin 1788
  • 'Sciurus griseus belongs to Sciurus' according to Ord 1818
  • 'Scottimus ambiguus belongs to Scottimus' according to Korth 1981
  • 'Scottimus kellamorum belongs to Scottimus' according to Black 1961
  • 'Scottimus longiquus belongs to Scottimus' according to Korth 1981
  • 'Scottimus viduus belongs to Scottimus' according to Korth 1981
  • 'Shoshonius belongs to Anaptomorphidae' according to Granger 1910
  • 'Shoshonius cooperi belongs to Shoshonius' according to Granger 1910
  • 'Sigmodon belongs to Cricetidae' according to Say and Ord 1825
  • 'Sigmodon bakeri belongs to Sigmodon' according to R. Martin 1974
  • 'Sigmodon hispidus belongs to Sigmodon' according to Say and Ord 1825
  • 'Sigmodon libitinus belongs to Sigmodon' according to R. Martin 1979
  • 'Sigmodon ochrognathus belongs to Sigmodon' according to Bailey 1902
  • 'Simimys belongs to Simimyidae' according to R. Wilson 1935
  • 'Simocyon belongs to Procyonidae' according to Wagner 1858
  • 'Simocyon primigenius belongs to Simocyon' according to Wagner 1858
  • 'Sinclairella belongs to Apatemyidae' according to Jepsen 1934
  • 'Sinclairella dakotensis belongs to Sinclairella' according to Jepsen 1934
  • 'Sinopa major belongs to Sinopa' according to Gustafson 1998
  • 'Sinopa rapax belongs to Sinopa' according to Leidy 1871
  • 'Smilodectes gingerichi is a subjective synonym of Cantius angulatus' according to Gunnell 2002
  • 'Smilodectes sororis belongs to Smilodectes' according to Gunnell 2002
  • 'Smilodon belongs to Felidae' according to Lund 1841
  • 'Soergelia belongs to Bovidae' according to Schaub 1951
  • 'Sorex arcticus belongs to Sorex' according to Kerr 1792
  • 'Sorex arizonae belongs to Sorex' according to Diersing and Hoffmeister 1977
  • 'Sorex cinereus belongs to Sorex' according to Kerr 1792
  • 'Sorex cudahyensis belongs to Sorex' according to Hibbard 1944
  • 'Sorex dispar belongs to Sorex' according to Batchelder 1896
  • 'Sorex fumeus belongs to Sorex' according to Miller 1895
  • 'Sorex leahyi belongs to Sorex' according to Hibbard 1956
  • 'Sorex longirostris belongs to Sorex' according to Bachman 1837
  • 'Sorex merriami belongs to Sorex' according to Dobson 1890
  • 'Sorex monticolus belongs to Sorex' according to Merriam 1890
  • 'Sorex ornatus belongs to Sorex' according to Merriam 1895
  • 'Sorex palustris belongs to Sorex' according to Richardson 1828
  • 'Sorex rexroadensis belongs to Sorex' according to Hibbard 1953
  • 'Sorex sandersi belongs to Sorex' according to Hibbard 1956
  • 'Sorex saussurei belongs to Sorex' according to Merriam 1892
  • 'Sorex taylori belongs to Sorex' according to Hibbard 1937
  • 'Sorex trowbridgii belongs to Sorex' according to Baird 1858
  • 'Sorex vagrans belongs to Sorex' according to Baird 1858
  • 'Sorex vireti is recombined as Angustidens vireti' according to Sutton 1977
  • 'Spermophilus belongs to Sciuridae' according to Cuvier 1825
  • 'Spermophilus armatus belongs to Spermophilus' according to Kennicott 1863
  • 'Spermophilus boothi belongs to Spermophilus' according to Hibbard 1972
  • 'Spermophilus johnstoni belongs to Spermophilus' according to Hibbard 1972
  • 'Spermophilus lorisrusselli belongs to Spermophilus' according to Hibbard 1976
  • 'Spermophilus meltoni belongs to Spermophilus' according to Hibbard 1972
  • 'Spermophilus spilosoma belongs to Spermophilus' according to Bennett 1833
  • 'Spermophilus townsendii belongs to Spermophilus' according to Bachman 1839
  • 'Sphenocoelus belongs to Brontotheridae' according to Osborn 1895
  • 'Sphenophalos belongs to Antilocapridae' according to J. Merriam 1909
  • 'Spilogale belongs to Mustelidae' according to Gray 1865
  • 'Stegomastodon belongs to Gomphotheriidae' according to Pohlig 1912
  • 'Stehlinius is a subjective synonym of Apatemys' according to West 1973
  • 'Steneofiber belongs to Castoridae' according to Geoffroy 1833
  • 'Sthenodectes belongs to Brontotheridae' according to Gregory 1912
  • 'Stibarus belongs to Leptochoeridae' according to Cope 1873
  • 'Stylinodon belongs to Stylinodontidae' according to Marsh 1874
  • 'Stylinodon inexplicatus belongs to Stylinodon' according to Schoch and Lucas 1981
  • 'Sylvilagus belongs to Leporidae' according to Gray 1867
  • 'Sylvilagus leonensis belongs to Sylvilagus' according to Cushing 1945
  • 'Synaptomys belongs to Cricetidae' according to Baird 1858
  • 'Synaptomys australis belongs to Synaptomys' according to Simpson 1928
  • 'Synaptomys bunkeri belongs to Synaptomys' according to Hibbard 1939
  • 'Synaptomys cooperi belongs to Synaptomys' according to Baird 1858
  • 'Synoplotherium belongs to Mesonychidae' according to Cope 1872
  • 'Synoplotherium lanius belongs to Synoplotherium' according to Cope 1872
  • 'Tadarida constantinei belongs to Tadarida' according to Lawrence 1960
  • 'Taeniolabis belongs to Taeniolabididae' according to Cope 1882
  • 'Tamias belongs to Sciuridae' according to Illinger 1811
  • 'Tamias leucurus is recombined as Ammospermophilus leucurus' according to Merriam 1889
  • 'Tamiasciurus belongs to Sciuridae' according to Trouessart 1880
  • 'Tapiravus polkensis is recombined as Tapirus polkensis' according to Hulbert 1999
  • 'Tapirus belongs to Tapiridae' according to Brisson 1762
  • 'Tapirus haysii californicus is recombined as Tapirus californicus' according to Simpson 1945
  • 'Tapirus veroensis belongs to Tapirus' according to Sellards 1918
  • 'Tarka belongs to Plagiomenidae' according to McKenna 1990
  • 'Tarka stylifera belongs to Tarka' according to McKenna 1990
  • 'Tarkadectes belongs to Ekgmowechashalinae' according to McKenna 1990
  • 'Tarkadectes montanensis belongs to Tarkadectes' according to McKenna 1990
  • 'Taxidea belongs to Mustelidae' according to Waterhouse 1839
  • 'Taxidea mexicana belongs to Taxidea' according to Drescher 1939
  • 'Taxymys progressus belongs to Taxymys' according to R. Wilson 1938
  • 'Tayassu belongs to Tayassuidae' according to Fischer 1814
  • 'Teleoceras felicis belongs to Teleoceras' according to Freudenberg 1921
  • 'Teleoceras hicksi belongs to Teleoceras' according to Cook 1927
  • 'Teleoceras minor belongs to Teleoceras' according to Mead 1999
  • 'Telmatherium belongs to Brontotheridae' according to Marsh 1872
  • 'Telmatherium accola belongs to Telmatherium' according to Cook 1926
  • 'Telmatherium advocata belongs to Telmatherium' according to Cook 1926
  • 'Temnocyon belongs to Amphicyonidae' according to Cope 1879
  • 'Temnocyon altigenis belongs to Temnocyon' according to Cope 1879
  • 'Temnocyon ferox belongs to Temnocyon' according to Eyermann 1896
  • 'Tenudomys belongs to Geomyidae' according to Rensberger 1973
  • 'Tenudomys macdonaldi belongs to Tenudomys' according to Rensberger 1973
  • 'Terricola belongs to Cricetidae' according to Fatio 1867
  • 'Tetrapassalus proius belongs to Tetrapassalus' according to West 1973
  • 'Thinobadistes belongs to Mylodontidae' according to Hay 1919
  • 'Thinobadistes segnis belongs to Thinobadistes' according to Hay 1919
  • 'Thisbemys brevicrista belongs to Thisbemys' according to Ostrander 1986
  • 'Thomomys belongs to Geomyidae' according to Wied-Neuwied 1839
  • 'Thomomys microdon belongs to Thomomys' according to Sinclair 1905
  • 'Thomomys orientalis belongs to Thomomys' according to Simpson 1928
  • 'Tillomys belongs to Sciuravidae' according to Marsh 1872
  • 'Tinodon belongs to Tinodontidae' according to O. C. Marsh 1879
  • 'Tisisthenes parvus belongs to Tisisthenes' according to R. Martin 1973
  • 'Titanoides belongs to Titanoideidae' according to Gidley 1917
  • 'Tomarctus belongs to Canidae' according to Cope 1873
  • 'Tremarctos belongs to Ursidae' according to Gervais 1855
  • 'Trigonias belongs to Rhinocerotidae' according to F. Lucas 1900
  • 'Triplopus belongs to Hyracodontidae' according to Cope 1880
  • 'Tritemnodon belongs to Hyaenodontidae' according to Matthew 1906
  • 'Trogosus belongs to Esthonychidae' according to Leidy 1871
  • 'Tubulodon belongs to Epoicotheriidae' according to Jepsen 1932
  • 'Tubulodon taylori belongs to Tubulodon' according to Jepsen 1932
  • 'Uintatherium belongs to Uintatheriidae' according to Leidy 1872
  • 'Unuchinia belongs to Apatemyidae' according to Simpson 1937
  • 'Urocyon belongs to Canidae' according to Baird 1857
  • 'Urocyon progressus belongs to Urocyon' according to Stevens 1965
  • 'Ursavus belongs to Ursidae' according to Schlosser 1899
  • 'Ursavus brevirhinus belongs to Ursavus' according to Hofmann 1887
  • 'Ursavus pawniensis belongs to Ursavus' according to Frick 1926
  • 'Ursavus primaevus belongs to Ursavus' according to Gaillard 1899
  • 'Ursus americanus belongs to Ursus' according to Pallas 1780
  • 'Ursus maritimus belongs to Ursus' according to Phipps 1774
  • 'Valenia belongs to Mioclaenidae' according to de Muizon and Cifelli 2000
  • 'Viverravus gracilis belongs to Viverravus' according to Marsh 1872
  • 'Vulpavus belongs to Miacidae' according to Marsh 1871
  • 'Vulpavus palustris belongs to Vulpavus' according to Marsh 1871
  • 'Wilsoneumys belongs to Cricetidae' according to L. Martin 1980
  • 'Wortmania belongs to Stylinodontidae' according to Hay 1899
  • 'Yoderimys yarmeri belongs to Yoderimys' according to J. Wilson and Runkel 1991
  • 'Ysengrinia belongs to Amphicyonidae' according to Ginsburg 1965
  • 'Zanycteris belongs to Picrodontidae' according to Matthew 1917
  • 'Zanycteris paleocenus belongs to Zanycteris' according to Matthew 1917
  • 'Zapus belongs to Zapodidae' according to Coues 1876
  • 'Zapus princeps belongs to Zapus' according to Allen 1893
  • 'Zapus rinkeri belongs to Zapus' according to Hibbard 1951
  • 'Zapus sandersi belongs to Zapus' according to Hibbard 1956
  • 'Zygiocuspis belongs to Trituberculata' according to Cifelli 1990
  • 'Zygiocuspis goldingi belongs to Zygiocuspis' according to Cifelli 1990