Kingdom [Animalia] Linnaeus, 1758 - animals
Phylum Chordata Bateson, 1885 - chordates
Subphylum Vertebrata Cuvier, 1812 - vertebrates
see Infraphylum Vertebrata Lamarck, 1801
Class Mammalia Linnaeus, 1758 - mammals
Subclass Theria Parker & Haswell, 1897
Infraclass Eutheria Gill, 1872
Order Perissodactyla Owen, 1848 - odd-toed ungulates
Suborder †Ancylopoda Cope, 1889
see Superfamily Chalicotherioidea Gill, 1872