Classification of Simpson 1935
G. †Gidleyina Simpson 1935
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G. †Metachriacus Simpson 1935
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†Metachriacus provocator Simpson 1935
†Metachriacus punitor Simpson 1935
Or. Carnivora Bowdich 1821 [carnivoran]
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G. †Ectypodus Matthew and Granger 1921
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†Ectypodus grangeri Simpson 1935
†Ectypodus russelli Simpson 1935
†Ectypodus silberlingi Simpson 1935
G. †Ptilodus Cope 1881
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†Ptilodus douglassi Simpson 1935
†Ptilodus gidleyi Simpson 1935
†Ptilodus sinclairi Simpson 1935
Fm. †Cimolestidae Marsh 1889
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Fm. †Gypsonictopidae Van Valen 1967
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Fm. †Pantolestidae Cope 1884
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Fm. †Plagiomenidae Matthew 1918
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G. †Leptacodon Matthew and Granger 1921
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†Leptacodon ladae Simpson 1935
†Leptacodon munusculum Simpson 1935
†Leptacodon siegfriedti Simpson 1928
Invalid names: Leipsanolestes Simpson 1928 [synonym]
Fm. †Palaechthonidae Szalay 1969
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G. †Didymictis Cope 1875
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†Didymictis microlestes Simpson 1935
†Didymictis tenuis Simpson 1935
Fm. †Mioclaenidae Osborn and Earle 1895 [condylarth]
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Fm. †Hyopsodontidae Trouessart 1879 [condylarth]
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Fm. †Phenacodontidae Cope 1881 [condylarth]
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G. †Claenodon Scott 1892
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†Claenodon ferox Cope 1883
†Claenodon latidens Gidley 1919
†Claenodon montanensis Gidley 1919
†Claenodon silberlingi Gidley 1919
†Claenodon vecordensis Simpson 1935
Invalid names: Neoclaenodon Gidley 1919 [synonym]
†Ptilodus montanus Douglass 1908
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Invalid names: Ptilodus admirabilis Hay 1930 [synonym]