Class Mammalia Linnaeus, 1758 - mammals
   Subclass Theria Parker & Haswell, 1897
     Order Artiodactyla Owen, 1848 - even-toed ungulates see Order Cetartiodactyla Montgelard, Catzeflis & Douzery, 1997
       1 Family Suidae Gray, 1821 - pigs
       2 Family Tayassuidae Palmer, 1897 (1849) - peccaries
       3 Family Hippopotamidae Gray, 1821 - hippopotamuses
       4 Family Camelidae Gray, 1821 - camels, guanaco, llama, alpaca, and vicuña
       5 Family Tragulidae Milne-Edwards, 1864 - chevrotains
       6 Family Moschidae Gray, 1821 [monotypic] - musk deer
       7 Family Cervidae Batsch, 1788 - deer