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
                 Superfamily Platanistoidea Gray, 1846
                   2.1.1? Family †Squalodontidae Brandt, 1873 - shark-toothed dolphins
                   2.1.2? Family †Dalpiazinidae de Muizon, 1988 [monotypic]
                   2.2.1? Family †Waipatiidae Fordyce, 1994
                   2.2.2.1 Family †Allodelphinidae Barnes, 2006
                   2.2.2.2.1 Family †Squalodelphinidae Dal Piaz, 1916
                   2.2.2.2.2 Family Platanistidae Gray, 1846 - river dolphins