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 Carnivora Bowdich, 1821 - carnivores
                     Suborder Caniformia Kretzoi, 1943
                       Superfamily Musteloidea Batsch, 1788 see Parvorder Musteloidea Kretzoi, 1929
                         Family Phocidae Gray, 1821 - true seals
                           01 Genus Halichoerus Nilsson, 1820 - gray seal
                           02 Genus Erignathus Gill, 1866 - bearded seal
                           03 Genus Cystophora Nilsson, 1820 - hooded seal
                           04 Genus Phoca Linnaeus, 1758 - harbor, ringed, harp, and ribbon seals
                           05 Genus Monachus Fleming, 1822 - monk seals
                           06 Genus Lobodon Gray, 1844 - crabeater seal
                           07 Genus Ommatophoca Gray, 1844 - Ross seal
                           08 Genus Hydrurga Gistel, 1848 - leopard seal
                           09 Genus Leptonychotes Gill, 1872 - Weddell seal
                           10 Genus Mirounga Gray, 1827 - elephant-seals