Phylum Chordata Bateson, 1885 - chordates
Count: -
Subphylum Vertebrata Cuvier, 1812 - vertebrates
Count: -
Class Mammalia Linnaeus, 1758 - mammals
Count: -
Order Perissodactyla Owen, 1848 - odd-toed ungulates
Count: [*] 3f; †11f
Family †Amynodontidae Scott & Osborn, 1883
Count: -
Family †Brontotheriidae Marsh, 1873
Count: -
Family †Chalicotheriidae Gill, 1872
Count: -
Family †Deperetellidae Radinsky, 1965
Count: -
Family †Eomoropidae Matthew, 1929
Count: -
Family Equidae Gray, 1821 - horses, zebras, and asses
Count: -
Family †Helaletidae Osborn, 1892
Count: -
Family †Hyracodontidae Cope, 1879
Count: -
Family †Isectolophidae Peterson, 1919
Count: -
Family †Lophialetidae Matthew & Granger, 1925
Count: -
Family †Lophiodontidae Gill, 1872
Count: -
Family †Palaeotheriidae Bonaparte, 1850
Count: -
Family Rhinocerotidae Gray, 1821 - rhinoceroses
Count: -
Family Tapiridae Gray, 1821 - tapirs
Count: -