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Temporal range: Miocene to recent? 9–0 Ma
Hexaprotodon sivalensis.jpg
Hexaprotodon sivalensis skull elements
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Artiodactyla
Family: Hippopotamidae
Subfamily: Hippopotaminae
Genus: Hexaprotodon
Falconer and Cautley, 1836

Hexaprotodon liberiensis (disputed)
various extinct species

Hexaprotodon is a genus of Hippopotamidae that is sometimes applied to the pygmy hippopotamus. Pygmy hippos may be classified as either Choeropsis liberiensis or Hexaprotodon liberiensis. The name Hexaprotodon means "six front teeth" as some of the fossil forms have three pairs of incisors.[1] [2]


The genus Hexaprotodon also includes a number of rarely studied extinct species from Asia, sometimes labeled "Asian hippopotami."[citation needed]

  • Hexaprotodon bruneti Boisserie and White, 2004
  • Hexaprotodon crusafonti Aguirre, 1963
  • Hexaprotodon hipponensis (Gaudry, 1867)
  • Hexaprotodon imagunculus (Hopwood, 1926)
  • Hexaprotodon iravticus Falconer and Cautley, 1847
  • Hexaprotodon karumensis Coryndon, 1977
  • Hexaprotodon liberiensis?
  • Hexaprotodon mingoz Boisserie et al., 2003
  • Hexaprotodon namadicus Falconer and Cautley, 1847 - possibly same as H. palaeindicus´
  • Hexaprotodon palaeindicus Falconer and Cautley, 1847
  • Hexaprotodon pantanellii (Joleaud, 1920)
  • Hexaprotodon primaevus Crusafont et al., 1964
  • Hexaprotodon protamphibius (Arambourg, 1944)
  • Hexaprotodon siculus (Hooijer, 1946)
  • Hexaprotodon sinhaleyus (Deraniyagala)
  • Hexaprotodon sivajavanicus (Hooijer, 1950)
  • Hexaprotodon sivalensis Falconer and Cautley, 1836
  • Hexaprotodon sp. - Myanmar hippopotamus (fossil)
    H. imagunculus