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 Odontoceta Ameghino, 1889 see Parvorder Odontoceti Flower, 1867
                     1 Family Platanistidae Gray, 1846 - river dolphins
                     2 Family Delphinidae Gray, 1821 - oceanic dolphins
                     3 Family Phocoenidae Gray, 1825 - porpoises
                     4 Family Monodontidae Gray, 1821 - white whales
                     5 Family Physeteridae Gray, 1821 - sperm whales
                     6 Family Ziphiidae Gray, 1850 - beaked whales