Equus Linnaeus, 1758 . Syst. Nat., 10th ed., 1:73.

TYPE SPECIES: Equus caballus Linnaeus, 1758 .

SYNONYMS: Asinohippus, Asinus, Dolichohippus, Grevya, Hemionus, Hemippus, Hippotigris, Ludolphozecora, Microhippus, Megacephalon, Megacephalonella, Onager, Pseudoquagga, Quagga, Quaggoides, Zebra (see Bennett, 1980; Groves and Willoughby, 1981).