Perissodactyla

thumb|The white rhinoceros is the largest living perissodactyl

REDIRECT Perissodactyla#Taxonomy

REDIRECT Perissodactyla#Taxonomy

REDIRECT Perissodactyla#Higher classification of perissodactyls

Equoidea is a superfamily of hippomorph perissodactyls containing the Equidae, Palaeotheriidae, and other basal equoids of unclear affinities, of which members of the genus Equus are the only extant species. The earliest fossil record of the Equoidea proves unclear, but they possibly could have originated during the late Paleocene in Europe or Asia. Definite fossil records of equoids are recorded by the earliest Eocene, in which the earliest equids in North America and basal equoids of unclear affinities in Europe both appeared. Palaeotheres are thought to have originated later in the early Eo

Hallensia is an extinct genus of perissodactyl.