Classification of Miller 1980

Fm. Crocodylidae Cuvier 1807 [crocodile]
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G. Crocodylus Laurenti 1768 [crocodile]
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Crocodylus moreletii Dumeril and Bibron 1851 [Morelet's crocodile]
G. Ammospermophilus Merriam 1892 [antelope squirrel]
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Fm. †Gomphotheriidae Hay 1922 [gomphothere]
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Invalid names: Mastodon shepardii Leidy 1870 [nomen dubium], Rhynchotherium rectidens Osborn 1923 [nomen dubium]
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Invalid names: Rhynchotherium simpsoni Olsen 1957 [synonym]