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 Ziphiidae Gray, 1850 - beaked whales
         Genus Berardius Duvernoy, 1851 - giant bottle-nosed whales
           1 Berardius arnuxii Duvernoy, 1851 - Arnoux's beaked whale
           2 Berardius bairdii Stejneger, 1883 - Baird's beaked whale