Class Mammalia Linnaeus, 1758 - mammals Order Proboscidea Owen, 1859 - elephants Family Elephantidae Gray, 1821 - elephants Subfamily Elephantinae Gray, 1821 Genus ‡Mammuthus Brookes, 1828 - mammoths †Mammuthus columbi (Falconer, 1857) - Columbian mammoth