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 Camelidae Gray, 1821 - camels, guanaco, llama, alpaca, and vicuña
         1 Genus Camelus Linnaeus, 1758 - camels
         2 Genus Lama Cuvier, 1800 [monotypic] - guanaco, llama, and alpaca
         3 Genus Vicugna Lesson, 1842 [monotypic] - vicuña