Proboscidea Owen 1859 see Order Proboscidea Owen, 1859 Elephantoidea see Suborder Elephantoidea Osborn, 1921 Family Elephantidae Gray, 1821 - elephants Subfamily Elephantinae Gray, 1821 Genus ‡Mammuthus Brookes, 1828 - mammoths †"Mammuthus hayi" (Barbour, 1915)