[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Kingdom Animalia Linnaeus, 1758 - animals
     Branch Eumetazoa Butschli, 1910 see [unranked] Eumetazoa Bütschli, 1910
       Division Bilateria Hatschek, 1888 see Subkingdom Bilateria Hatschek, 1888
         Subdivision Deuterostomia Grobben, 1908 see Infrakingdom Deuterostomia Grobben, 1908
           Phylum Chordata Bateson, 1885 - chordates
             Subphylum Vertebrata Cuvier, 1812 - vertebrates
               Superclass Tetrapoda Goodrich, 1930 - tetrapods see Clade Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988]
                 Class Mammalia Linnaeus, 1758 - mammals
                   Subclass Theria Parker & Haswell, 1897
                     Infraclass Eutheria Gill, 1872
                       Order Cetacea Brisson, 1762 - whales, dolphins, and porpoises see Infraorder Cetacea Brisson, 1762
                         Suborder Odontoceti Flower, 1867 - toothed whales see Parvorder Odontoceti Flower, 1867
                           Genus Delphinus Linnaeus, 1758 - common dolphin, saddleback dolphin
                           Genus Monodon Linnaeus, 1758 - narwhal
                           Genus Orcinus Fitzinger, 1860 - killer whale
                           Genus Phocaena Cuvier, 1817 see Genus Phocoena Cuvier, 1817
                           Genus Physeter Linnaeus, 1758 - sperm whale