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
       Family Platanistidae Gray, 1846 - river dolphins
         1 Genus Inia d'Orbigny, 1834 - Amazon River dolphin
         2 Genus Lipotes Miller, 1918 - baiji
         3 Genus Platanista Wagler, 1830 - South Asian river dolphin
         4 Genus Pontoporia Gray, 1846 - Franciscana