Class Mammalia Linnaeus, 1758 - mammals Order Artiodactyla Owen, 1848 - even-toed ungulates see Order Cetartiodactyla Montgelard, Catzeflis & Douzery, 1997 Family Cervidae Batsch, 1788 - deer Subfamily Capreolinae Brookes, 1828 Genus Odocoileus Rafinesque, 1832 - white-tailed deer and mule deer 1 Odocoileus hemionus (Rafinesque, 1817) - mule deer 2 Odocoileus virginianus (Zimmermann, 1780) - white-tailed deer