Kingdom Animalia Linnaeus, 1758 - animals
Phylum Craniata Linnaeus, 1758
see Subphylum Vertebrata Cuvier, 1812
Class Mammalia Linnaeus, 1758 - mammals
Subclass Theria Parker & Haswell, 1897
Infraclass Placentalia Owen, 1837
see Cohort Placentalia Owen, 1837
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 Eschrichtiidae Ellerman & Morrison-Scott, 1951 - gray whales