Proboscidea Owen 1859 see Order Proboscidea Owen, 1859
   Elephantoidea see Suborder Elephantoidea Osborn, 1921
     1 Family †Mammutidae Hay, 1922
     2.1 Family †Gomphotheriidae Hay, 1922 - gomphotheres
     2.2.1 Family ‡Stegodontidae Osborn, 1918
     2.2.2 Family Elephantidae Gray, 1821 - elephants