Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Bilateralia
         Phylum Chordata Bateson, 1885 - chordates
           Subphylum Vertebrata Cuvier, 1812 - vertebrates
             Class Mammalia Linnaeus, 1758 - mammals
               Subclass Eutheria Gill, 1872 see Infraclass Eutheria Gill, 1872
                 Order Carnivora Bowdich, 1821 - carnivores
                   Suborder Pinnipedia Illiger, 1811 see Parvorder Pinnipedia Illiger, 1811
                     Superfamily Phocoidea Gray, 1821
                       Family Phocidae Gray, 1821 - true seals
                         1 Subfamily Monachinae Gray, 1869 see Tribe Monachini Gray, 1869
                         2 Subfamily Lobodontinae (Gray, 1869) Hay, 1930 see Subtribe Lobodontina Gray, 1869
                         3 Subfamily Cystophorinae Gray, 1837 see Tribe Phocini Gray, 1821
                         4 Subfamily Phocinae Gray, 1821 - true seals, earless seals, hair seals