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 Physeteridae Gray, 1821 - sperm whales
Genus Physeter Linnaeus, 1758 - sperm whale
1 Physeter catodon Linnaeus, 1758 - sperm whale
see Physeter macrocephalus Linnaeus, 1758