Cetacea Brisson 1762 see Suborder Cetacea Brisson, 1762
Count: [*†*] 2f;2g; †15g;1s
   Neoceti Fordyce & de Muizon, 2001
  Count: [*†*] 2f;2g; †14g;1s
     Odontoceti Flower, 1867 see Parvorder Odontoceti Flower, 1867
    Count: [*†*] 2f;2g; †14g;1s
       Physeteroidea Gray, 1821
      Count: [*†*] 2f;2g; †13g;1s
         [stem] Genus †Brygmophyseter Barnes, 2006
        Count: -