Class [Mammalia] Linnaeus, 1758 - mammals Order Artiodactyla Owen, 1848 - even-toed ungulates see Order Cetartiodactyla Montgelard, Catzeflis & Douzery, 1997 Family Cervidae Batsch, 1788 - deer Genus Odocoileus Rafinesque, 1832 - white-tailed deer and mule deer Odocoileus hemionus (Rafinesque, 1817) - mule deer