Classification of Gazin 1953

†Trogosus vetulus Leidy 1871
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Fm. †Esthonychidae Cope 1883
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G. †Adapidium Young 1937
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†Adapidium huanghoense Young 1937
Subfm. †Esthonychinae Zittel and Schlosser 1911
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G. †Esthonyx Cope 1874
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†Esthonyx acutidens Cope 1881
†Esthonyx bisulcatus Cope 1874
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Invalid names: Esthonyx acer Cope 1874 [synonym], Esthonyx burmeisterii Cope 1874 [synonym]
†Esthonyx grangeri Simpson 1937
†Esthonyx latidens Simpson 1937
†Esthonyx munieri Lemoine 1891
†Esthonyx spatularius Cope 1880
Subfm. †Trogosinae Gazin 1953
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G. †Tillodon Gazin 1953
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†Tillodon fodiens Marsh 1875
G. †Trogosus Leidy 1871
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†Trogosus castoridens Leidy 1871
†Trogosus grangeri Gazin 1953
†Trogosus hillsii Gazin 1953
†Trogosus hyracoides Marsh 1873
†Trogosus latidens Marsh 1874
†Trogosus minor Marsh 1871
Invalid names: Tillotherium Marsh 1873 [synonym]
Invalid names: Anchippodus Leidy 1868 [nomen dubium]
Invalid names: Anchippodontidae Gill 1872 [synonym], Tillotheriidae Marsh 1875 [synonym]