Hexaprotodon

Hexaprotodon Temporal range: Miocene to recent? 9–0 Ma PreЄ Є O S D C P T J K Pg N
Hexaprotodon sivalensis skull elements
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Clade:	Synapsida
Class:	Mammalia
Order:	Artiodactyla
Family:	Hippopotamidae
Subfamily:	Hippopotaminae
Genus:	Hexaprotodon Falconer and Cautley, 1836
Species
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]}

H. imagunculus

The genus Hexaprotodon also includes a number of rarely studied extinct species from Asia, sometimes labeled "Asian Hippopotami."

• 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 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)

References

1. Boisserie, Jean-Renaud (2005). "The phylogeny and taxonomy of Hippopotamidae (Mammalia: Artiodactyla): a review based on morphology and cladistic analysis". Zoological Journal of the Linnean Society. 143: 1–26. doi:10.1111/j.1096-3642.2004.00138.x. Retrieved 2007-06-01.
2. Hexaprotodon, The Paleobiology Database, läst 19 mars 2013.