Class Mammalia Linnaeus, 1758 - mammals
   Order Cetacea Brisson, 1762 - whales, dolphins, and porpoises see Infraorder Cetacea Brisson, 1762
     Suborder Odontoceti Flower, 1867 - toothed whales see Parvorder Odontoceti Flower, 1867
       1 Family Delphinidae Gray, 1821 - oceanic dolphins
       2 Family Monodontidae Gray, 1821 - white whales
       3 Family Phocoenidae Gray, 1825 - porpoises
       4 Family Physeteridae Gray, 1821 - sperm whales
       5 Family Platanistidae Gray, 1846 - river dolphins
       6 Family Ziphiidae Gray, 1850 - beaked whales