Mammalia Linnaeus 1758 [Rowe 1988], nom. cl. inval. see Class Mammalia Linnaeus, 1758
   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 Phocoenidae Gray, 1825 - porpoises
                       01 Genus Phocoena Cuvier, 1817 - common porpoises
                       02 Genus Phocoenoides Andrews, 1911 [monotypic] - Dall porpoise
                       03 Genus Neophocaena Palmer, 1899 [monotypic] - finless porpoise
                       04 Genus †Brabocetus Colpaert et al., 2015
                       05 Genus †Septemtriocetus Lambert, 2008
                       06 Genus †Archaeophocaena Murakami, Shimada, Hikida & Hirano, 2012
                       07 Genus †Australithax de Muizon, 1988
                       08 Genus †Haborophocoena Ichishima & Kimura, 2005
                       09 Genus †Lomacetus de Muizon, 1986
                       10 Genus †Miophocaena Murakami, Shimada, Hikida & Hirano, 2012
                       11 Genus †Numataphocoena Ichishima & Kimura, 2000
                       12 Genus †Piscolithax de Muizon, 1983
                       13 Genus †Pterophocaena Murakami, Shimada, Hikida & Hirano, 2012
                       14 Genus †Salumiphocaena Barnes, 1985
                       15 Genus †Semirostrum Racicot, Deméré, Beatty & Boessenecker, 2014