Class Mammalia Linnaeus, 1758 - mammals Order Perissodactyla Owen, 1848 - odd-toed ungulates Family Rhinocerotidae Gray, 1821 - rhinoceroses Genus Rhinoceros Linnaeus, 1758 - Asian one-horned rhinoceroses Rhinoceros sondaicus Desmarest, 1822 - Javan rhinoceros