Hippopotamus Temporal range: Pliocene - Recent[1][2]
The river hippopotamus, Hippopotamus amphibius
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Mammalia
Order:	Artiodactyla
Family:	Hippopotamidae
Subfamily:	Hippopotaminae
Genus:	Hippopotamus Linnaeus, 1758
Type species
Hippopotamus amphibius Linnaeus, 1758
Synonyms
Phanourios Sondaar and Boekschoten, 1972

Hippopotamus is a genus of artiodactyl mammals consisting of one extant species, Hippopotamus amphibius, the river hippopotamus (or simply the hippopotamus), and several extinct species from both recent and prehistoric times. It belongs to the family Hippopotamidae, which also includes the pygmy hippopotamus (Choeropsis liberiensis) and a number of extinct genera.

Species

The species of the genus Hippopotamus include:

Extant species

• Hippopotamus amphibius, hippopotamus

Extinct species

• †Hippopotamus aethiopicus (Africa, Early Pleistocene)
• †Hippopotamus antiquus, (Europe, Early-Middle Pleistocene)
• †Hippopotamus behemoth (West Asia, Early Pleistocene)
• †Hippopotamus creutzburgi, Cretan dwarf hippopotamus (Early Pleistocene)
• †Hippopotamus gorgops (Africa, West Asia, Early Pleistocene-early Middle Pleistocene), one of the largest known hippopotamuses
• †Hippopotamus kaisensis (Africa, Late Pliocene-Early Pleistocene)
• †Hippopotamus melitensis, Maltese hippopotamus (Middle-Late Pleistocene)
• †Hippopotamus minor, Cyprus dwarf hippopotamus (late Middle Pleistocene-Late Pleistocene, synonym Phanourios minor)^[3]
• †Hippopotamus pentlandi, Sicilian hippopotamus (Middle-Late Pleistocene)
• †Hippopotamus sirensis (Africa, Early Pleistocene, possibly a synonym of H. gorgops)^[4]
• Malagasy hippopotamuses (Late Pleistocene-Holocene)
  • †Hippopotamus madagascariensis, Madagascar dwarf hippopotamus
  • †Hippopotamus lemerlei, Lemerle's dwarf hippopotamus
  • †Hippopotamus laloumena, Malagasy hippopotamus