Class Mammalia Linnaeus, 1758 - mammals
   Order Carnivora Bowdich, 1821 - carnivores
     Family Otariidae Gray, 1825 - eared seals, fur seals, and sea lions
       1 Genus Arctocephalus Geoffroy & Cuvier, 1826 - southern fur seals
       2 Genus Callorhinus Gray, 1859 - northern fur seal
       3 Genus Eumetopias Gill, 1866 - northern sea lion, Steller sea lion
       4 Genus Neophoca Gray, 1866 - Australian sea lion
       5 Genus Otaria Péron, 1816 - southern sea lion
       6 Genus Phocarctos Peters, 1866 - Hooker's sea lion
       7 Genus Zalophus Gill, 1866 - California sea lion