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
                     Family Delphinidae Gray, 1821 - oceanic dolphins
                       Subfamily Steninae Gray, 1868 see Subfamily Delphininae Gray, 1821
                         1 Genus Steno Gray, 1846 - rough-toothed dolphin
                         2 Genus Sotalia Gray, 1866 - tucuxi
                         3 Genus Sousa Gray, 1866 - humpback dolphins