Kingdom [Animalia] Linnaeus, 1758 - animals
   Phylum Chordata Bateson, 1885 - chordates
     Subphylum Vertebrata Cuvier, 1812 - vertebrates
       Class Mammalia Linnaeus, 1758 - mammals
         Subclass Theria Parker & Haswell, 1897
           Infraclass Eutheria Gill, 1872
             Order Cetacea Brisson, 1762 - whales, dolphins, and porpoises see Infraorder Cetacea Brisson, 1762
               1 Suborder †Archaeoceti Flower, 1883 see Infraorder Archaeoceti Flower, 1883
               2 Suborder Odontoceti Flower, 1867 - toothed whales see Parvorder Odontoceti Flower, 1867
               3 Suborder Mysticeti Cope, 1891 - baleen whales see Parvorder Mysticeti Cope, 1891