Kingdom [Animalia] Linnaeus, 1758 - animals
Subkingdom Metazoa Haeckel, 1874
see Kingdom Animalia Linnaeus, 1758
Division Eumetazoa Butschli, 1910
see Subkingdom Eumetazoa Butschli, 1910
Subdivision Bilateralia
Phylum Chordata Bateson, 1885 - chordates
Subphylum Vertebrata Cuvier, 1812 - vertebrates
Class Mammalia Linnaeus, 1758 - mammals
Subclass Eutheria Gill, 1872
see Infraclass Eutheria Gill, 1872
Superorder Mesaxonia (Marsh, 1884)
Order Perissodactyla Owen, 1848 - odd-toed ungulates
1 Suborder †Ancylopoda Cope, 1889
see Superfamily Chalicotherioidea Gill, 1872
2 Suborder Hippomorpha Wood, 1937
3 Suborder Ceratomorpha Wood, 1937