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Temporal range: 16–0 Ma
Early Miocene-Holocene
Common hippopotamus
Pygmy hippopotamus
Scientific classification e
Kinrick: Animalia
Phylum: Chordata
Cless: Mammalia
Order: Artiodactyla
Suborder: Whippomorpha
Faimily: Hippopotamidae
Gray, 1821

Trilobophorous Geze, 1985

Hippopotaminae Gray, 1821

†Kenyapotaminae Pickford, 1983

Hippopotamuses are stout, nakit-skinned, an amphibious artiodactyl members (an the anly livin members) o the faimily Hippopotamidae possessin three-chambered painchs an walkin on fower taes on each fit. While thay resemmle pigs physiologically an are pseudoruminants lik caumels, thair closest livin relatives are actually the cetaceans (whauls an dowphins).

Thare are twa livin species o hippopotamus in twa genera; the pygmy hippo, Choeropsis liberiensis o the forests o wast Africae, an the common hippo, Hippopotamus amphibius.