living organisms see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superkingdom Eukaryotae see Domain Eukaryota Chatton, 1925
     Kingdom Animalia Linnaeus, 1758 - animals
       Subkingdom Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
         Phylum Chordata Bateson, 1885 - chordates
           Subphylum Vertebrata Cuvier, 1812 - vertebrates
             Class Mammalia Linnaeus, 1758 - mammals
               Subclass Theria Parker & Haswell, 1897
                 Infraclass Eutheria Gill, 1872
                   Order Artiodactyla Owen, 1848 - even-toed ungulates see Order Cetartiodactyla Montgelard, Catzeflis & Douzery, 1997
                     Suborder Ruminantia Scopoli, 1777
                       Infraorder Pecora Linnaeus, 1758
                         Family Bovidae Gray, 1821 - antelope, cattle, bison, buffalo, goats, and sheep
                           Subfamily Hippotraginae Retzius & Lovén, 1845
                             Tribe Hippotragini Retzius & Lovén, 1845
                               Genus Addax Laurillard, 1841 - addax
                                 Addax nasomaculatus (de Blainville, 1816) - addax