Class Mammalia Linnaeus, 1758 - mammals Subclass Theria Parker & Haswell, 1897 Order Artiodactyla Owen, 1848 - even-toed ungulates see Order Cetartiodactyla Montgelard, Catzeflis & Douzery, 1997 Family Suidae Gray, 1821 - pigs [Subfamily Suinae Gray, 1821] [Tribe Phacochoerini Gray, 1868]