Class Mammalia Linnaeus, 1758 - mammals Subclass Theria Parker & Haswell, 1897 Order Perissodactyla Owen, 1848 - odd-toed ungulates Family Rhinocerotidae Gray, 1821 - rhinoceroses Subfamily [Rhinocerotinae] Gray, 1821 Genus Ceratotherium Gray, 1868 [monotypic] - white rhinoceros 1 Ceratotherium simum (Burchell, 1817) - white rhinoceros