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 Cervidae Batsch, 1788 - deer
         Subfamily Capreolinae Brookes, 1828
           Genus Ozotoceros Ameghino, 1891 [monotypic] - pampas deer
             Ozotoceros bezoarticus (C. Linnaeus, 1758) - pampas deer
               Ozotoceros bezoarticus arerunguaensis González, Álvares-Valin & Maldonado, 2002