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 Mesoplodon Gervais, 1850 - beaked whales
Mesoplodon stejnegeri True, 1885 - Stejneger's beaked whale