Mammalia Linnaeus 1758 [Rowe 1988], nom. cl. inval. see Clade Mammalia Linnaeus 1758 [Rowe 2020]
   Cetartiodactyla Montgelard, Catzeflis & Douzery 1997 see Order Cetartiodactyla Montgelard, Catzeflis & Douzery, 1997
     Whippomorpha Waddell, Okada & Hasegawa 1999 see Suborder Whippomorpha
       Cetacea Brisson 1762 see Suborder Cetacea Brisson, 1762
         Pelagiceti Uhen, 2008
           Neoceti Fordyce & de Muizon, 2001
             Odontoceti Flower, 1867 see Parvorder Odontoceti Flower, 1867
               Synrhina Geisler et al., 2011
                 Delphinida de Muizon, 1984
                   Superfamily Delphinoidea Gray, 1821
                     Family Delphinidae Gray, 1821 - oceanic dolphins
                       01 Genus Orcinus Fitzinger, 1860 - killer whale
                       02 Genus Sotalia Gray, 1866 - tucuxi
                       03 Genus Steno Gray, 1846 - rough-toothed dolphin
                       04 Genus †Arimidelphis Bianucci, 2005
                       05 Genus †Australodelphis Fordyce, Quilty & Daniels, 2002
                       06 Genus †Eodelphinus Murakami, Shimada, Hikida & Soeda, 2014
                       07 Genus †Hemisyntrachelus Brandt, 1873
                       08 Subfamily Globicephalinae Gray, 1850
                       09 Subfamily Delphininae Gray, 1821
                       10 Subfamily Lissodelphininae Fraser & Purves, 1960