Class Mammalia Linnaeus, 1758 - mammals
Order Perissodactyla Owen, 1848 - odd-toed ungulates
Family Equidae Gray, 1821 - horses, zebras, and asses
Genus Equus Linnaeus, 1758 - horses, zebras, and asses
Equus onager Boddaert, 1785 - onager
see Equus hemionus onager Boddaert, 1785