Order Proboscidea Owen, 1859 - elephants
   Suborder Elephantoidea Osborn, 1921 see Suborder Elephantiformes (Tassy, 1988)
     Family Elephantidae Gray, 1821 - elephants
       Subfamily Elephantinae Gray, 1821
         Genus ‡Mammuthus Brookes, 1828 - mammoths
           †Mammuthus armeniacus (Falconer, 1857) see Elephas armeniacus H. Falconer, 1857
           †Mammuthus colombi nom. null. see Mammuthus columbi (Falconer, 1857)
           †Mammuthus exilus nom. null. see Mammuthus exilis (Stock & Furlong, 1928)
           ?†Mammuthus jeffersoni nom. null. see Mammuthus jeffersonii (Osborn, 1922)
           †Mammuthus lamarmorae (Forsyth Major, 1883) - Sardinian dwarf mammoth
           †Mammuthus trogontherii (Pohlig, 1885) - steppe mammoth
           †Mammuthus hayi (Barbour, 1915)
           †Mammuthus imperator (Leidy, 1858) - imperial mammoth
           ‡Mammuthus primigenius (Blumenbach, 1799) - woolly mammoth
           †Mammuthus rumanus (Ştefănescu, 1924)
           1 †Mammuthus subplanifrons (H.F. Osborn, 1928) - South African mammoth
           1.n †Mammuthus africanavus (Arambourg, 1952) - African mammoth
           1.n.n †Mammuthus meridionalis (Nesti, 1825) - southern mammoth