Classification of Douglass 1903

G. †Poatrephes Douglass 1903
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Poatrephes paludicola Douglass 1903
Cl. Reptilia Laurenti 1768 [reptile]
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G. †Helodermoides Douglass 1903
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Helodermoides tuberculatus Douglass 1903
G. †Ogmophus Cope 1844
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Ogmophus arenarum Douglass 1903
G. Talpa Linnaeus 1758
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Talpa platybrachys Douglass 1903
G. †Aelurodon Leidy 1858
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Aelurodon brachygnathus Douglass 1903
G. †Mesocyon Scott 1890
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Mesocyon coryphaeus Cope 1879
Mesocyon drummondanus Douglass 1903
G. †Dinocyon Jourdan 1861
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Dinocyon ossifragus Douglass 1903
G. †Mylagaulus Cope 1878
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Mylagaulus pristinus Douglass 1903
Mylagaulus proximus Douglass 1903
Fm. Sciuridae Gray 1821 [squirrel]
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G. †Palaearctomys Douglass 1903
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Palaearctomys macrorhinus Douglass 1903
Palaearctomys montanus Douglass 1903
G. Sciurus Linnaeus 1758 [squirrel]
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Sciurus arctomyoides Douglass 1903
Fm. Tayassuidae Palmer 1897 [peccary]
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G. †Hesperhys Douglass 1903
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Hesperhys vagrans Douglass 1903
G. †Merychyus Leidy 1858
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Merychyus smithi Douglass 1903
Fm. †Protoceratidae Marsh 1891 [protoceratid]
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G. †Trigenicus Douglass 1903
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Trigenicus socialis Douglass 1903
G. †Leptomeryx Leidy 1853
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Leptomeryx transmontanus Douglass 1903
G. †Palaeomeryx von Meyer 1834
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Palaeomeryx borealis Cope 1877
G. †Merycodus Leidy 1854
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Merycodus agilis Douglass 1899
G. †Mesohippus Marsh 1875
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Mesohippus latidens Douglass 1903
G. †Hyrachyus Leidy 1871
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Hyrachyus priscus Douglass 1903
G. †Aphelops Owen 1845
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Aphelops ceratorhinus Douglass 1903
G. †Gymnoptychus Cope 1873
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Gymnoptychus minor Douglass 1902
G. †Oreodon Leidy 1851
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Oreodon macrorhinus Douglass 1903
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Invalid names: Oreodon robustum Douglass 1902 [replaced]
G. †Promerycochoerus Douglass 1901
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Promerycochoerus minor Douglass 1903