Classification of Macdonald 1963
Fm. Erinaceidae Fischer von Waldheim 1817 [hedgehog]
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Fm. †Omomyidae Gazin 1958
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G. †Promartes Riggs 1942
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†Promartes gemmarosae Loomis 1932
†Promartes lepidus Matthew 1907
Fm. Canidae Fischer de Waldheim 1817 [canid]
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G. †Sunkahetanka Macdonald 1963
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†Sunkahetanka geringensis Barbour and Schultz 1935
†Sunkahetanka pahinsintewakpa Macdonald 1963
G. †Cynodesmus Scott 1893
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†Cynodesmus cooki Macdonald 1963
†Cynodesmus vulpinus Matthew 1907
G. †Hesperocyon Scott 1890
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†Hesperocyon gregorii Matthew 1907
†Hesperocyon leptodus Schlaikjer 1935
G. †Nothocyon Wortman and Matthew 1899
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†Nothocyon harlowi Loomis 1932
†Nothocyon latidens Cope 1881
†Nothocyon lemur Cope 1879
†Nothocyon roii Macdonald 1963
G. †Temnocyon Cope 1878
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†Temnocyon venator Cook 1909
†Temnocyon wallovianus Cope 1881
Fm. Castoridae Gray 1821 [beaver]
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G. †Capacikala Macdonald 1963
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†Capacikala gradatus Cope 1878
†Capacikala milleri Olson 1940
†Capacikala sciuroides Matthew 1907
Fm. †Florentiamyidae Wood 1936
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G. †Gregorymys Wood 1936
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†Gregorymys curtus Matthew 1907
†Gregorymys formosus Matthew 1907
G. †Proheteromys Wood 1932
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†Proheteromys bumpi Macdonald 1963
†Proheteromys fedti Macdonald 1963
†Proheteromys gremmelsi Macdonald 1963
†Proheteromys ironcloudi Macdonald 1963
G. †Archaeolagus Dice 1917
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†Archaeolagus macrocephalus Matthew 1907
†Archaeolagus primigenius Matthew 1907
G. †Desmatochoerus Thorpe 1921
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†Desmatochoerus curvidens Thorpe 1921
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Invalid names: Promerycochoerus gregoryi Loomis 1924 [synonym]
Invalid names: Hypselochoerus Loomis 1933 [synonym]
G. †Miohippus Marsh 1874
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†Miohippus equiceps Cope 1878
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Invalid names: Anchitherium brachylophus Cope 1879 [synonym], Mesohippus acutidens Sinclair 1905 [synonym]
G. †Parahippus Leidy 1858
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†Parahippus pristinus Osborn 1918
†Parahippus texanus Leidy 1868
Invalid names: Anchippus Leidy 1868 [synonym]
†Capatanka brachyceps Matthew 1907
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Invalid names: Euhapsis gaulodon Matthew 1907 [synonym]
†Cyclopidius simus Cope 1877
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Invalid names: Cyclopidius emydinus Cope 1884 [synonym]
†Merychyus minimus Peterson 1907
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Invalid names: Merychyus delicatus Loomis 1924 [synonym]
†Mesocyon robustus Matthew 1907
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Invalid names: Mesocyon hortulirosae Schlaikjer 1935 [synonym]
†Promerycochoerus minor Douglass 1903
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Invalid names: Promerycochoerus pygmyus Loomis 1924 [synonym]