†Hexaprotodon Falconer and Cautley 1836 (pygmy hippo)
Mammalia - Artiodactyla - Hippopotamidae
Parent taxon: Hippopotaminae according to J.-R. Boisserie et al. 2010
Sister taxa: Archaeopotamus, Choeropsis, Hippopotamus, Phanourios, Saotherium
Subtaxa: Hexaprotodon bruneti, Hexaprotodon coryndoni, Hexaprotodon crusafonti, Hexaprotodon dulu, Hexaprotodon garyam, Hexaprotodon hipponensis, Hexaprotodon imaguncula, Hexaprotodon iravticus, Hexaprotodon mingoz, Hexaprotodon namadicus, Hexaprotodon palaeindicus, Hexaprotodon pantanellii, Hexaprotodon primaevus, Hexaprotodon sahabiensis, Hexaprotodon shungurensis, Hexaprotodon siculus, Hexaprotodon sivalensis
Ecology: amphibious grazer-browser