Order Proboscidea Owen, 1859 - elephants
Count: -
   Family Elephantidae Gray, 1821 - elephants
  Count: -
     Subfamily Elephantinae Gray, 1821
    Count: -
       Genus ‡Mammuthus Brookes, 1828 - mammoths
      Count: ‡1s‡‡10s;5ss
         ?†Mammuthus jeffersonii (Osborn, 1922) - Jefferson's mammoth
        Count: -