Class [Mammalia] Linnaeus, 1758 - mammals Order Pinnipedia Illiger, 1811 - seals, sea lions, and walrus see Parvorder Pinnipedia Illiger, 1811 Family Odobenidae Allen, 1880 Genus Odobenus Brisson, 1762 - walrus Odobenus rosmarus (Linnaeus, 1758) - walrus