Phylum Chordata Bateson, 1885 - chordates
   Subphylum Vertebrata Cuvier, 1812 - vertebrates
     Class Mammalia Linnaeus, 1758 - mammals
       Order Cetacea Brisson, 1762 - whales, dolphins, and porpoises see Infraorder Cetacea Brisson, 1762
         Suborder Mysticeti Cope, 1891 - baleen whales see Parvorder Mysticeti Cope, 1891
           Family Balaenopteridae Gray, 1864 - rorquals
             Genus Balaenoptera Lacépède, 1804 - rorquals
               Balaenoptera acutorostrata Lacépède, 1804 - minke whale
               Balaenoptera borealis Lesson, 1828 - Sei whale
               Balaenoptera edeni Anderson, 1879 - Bryde's whale
               Balaenoptera musculus (Linnaeus, 1758) - blue whale
               Balaenoptera physalus (Linnaeus, 1758) - fin whale