Editing Hippopotamidae (section)

== Species ==
The systematics and [[Taxonomy (biology)|taxonomy]] used here mostly follows a review by J.-R. Boisserie<ref name=Boisserie-2005>
{{cite journal
 |author=Boisserie, Jean-Renaud
 |year=2005
 |title=The phylogeny and taxonomy of Hippopotamidae (Mammalia: Artiodactyla): A review based on morphology and cladistic analysis
 |journal=[[Zoological Journal of the Linnean Society]]
 |volume=143 |issue=1 |pages=1–26
 |doi=10.1111/j.1096-3642.2004.00138.x
 |type=HTML abstract
|doi-access=free
 }}
</ref>{{efn|name=hippo-minor|
Boisserie (2005)<ref name=Boisserie-2005/> identified the species ''Hippopotamus minor'' as ''Phanourios minutus'', but this genus is not widely recognized.
}}
and the [[American Society of Mammalogists]].<ref>
{{cite web
 |author1=Upham, Nathan      |author2=Burgin, Connor   |author3=Widness, Jane
 |author4=Liphardt, Schuyler |author5=Parker, Camila   |author6=Becker, Madeleine
 |author7=Rochon, Ingrid     |author8=Huckaby, David   |display-authors=6
 |date=10 August 2021
 |orig-year=2004
 |title=Mammal Diversity Database
 |type=vers.&nbsp;1.6
 |publisher=[[American Society of Mammalogists]]
 |doi=10.5281/zenodo.5175993
 |url=https://zenodo.org/record/5175993
 |access-date=2021-08-28
}}
</ref>

=== Recent species ===

* Genus ''[[Hippopotamus (genus)|Hippopotamus]]'' – true hippopotamuses
** ''[[Hippopotamus amphibius]]'' – hippopotamus ([[Africa]])
**†''[[Hippopotamus lemerlei]]'' – Lemerle's dwarf hippopotamus ([[Madagascar]]; [[Holocene]])
**†''[[Hippopotamus madagascariensis]]'' – Madagascan dwarf hippopotamus ([[Madagascar]]; [[Holocene]])
* Genus ''[[Choeropsis]]'' – pygmy hippopotamuses
** ''[[Pygmy hippopotamus|Choeropsis liberiensis]]'' – pygmy hippopotamus (west Africa)

=== Fossil species ===
* Genus ''[[Hippopotamus (genus)|Hippopotamus]]'' – true hippopotamuses
** †''[[Hippopotamus antiquus]]'' – mainland [[Europe]] & [[British Isles]]; [[Pleistocene]]
** †''[[Hippopotamus creutzburgi]]'' – [[Crete]]; Pleistocene
** †''[[Hippopotamus minor]]''{{efn|name=hippo-minor}} – [[Cyprus]]; Pleistocene to [[Holocene]]
** †''[[Hippopotamus melitensis]]'' – [[Malta]]; Pleistocene
** †''[[Hippopotamus pentlandi]]'' – Sicily; Pleistocene
** †''[[Hippopotamus laloumena]]'' – Madagascar; Holocene
** †''[[Hippopotamus gorgops]]'' – Africa [[Late Miocene]]–[[Middle Pleistocene]]
* Tentatively placed into ''Hippopotamus'':
** †''[[Hippopotamus aethiopicus]]'' – Kenya & Ethiopia; Pliocene -Pleistocene
** †''[[Hippopotamus afarensis]]'' – Ethiopia, formerly genus ''Trilobophorus''; Pliocene
** †''[[Hippopotamus behemoth]]'' – [[Israel]], Early Pleistocene
** †''[[Hippopotamus kaisensis]]'' – Central Africa; Pliocene
** †''[[Hippopotamus sirensis]]'' – [[Morocco]] & [[Algeria]]; Pleistocene
* Genus ''[[Hexaprotodon]]'' – hexaprotodons or Asian hippopotamuses
** †''[[Hexaprotodon bruneti]]'' – [[Ethiopia]]; Pliocene
** †''[[Hexaprotodon coryndoni]]'' – Ethiopia; Pliocene
** †''[[Hexaprotodon crusafonti]]'' – [[Spain]]; Late Miocene (syn. ''Hexaprotodon primaevus'')
** †''[[Hexaprotodon hipponensis]]'' – [[Algeria]]
** †''[[Hexaprotodon imagunculus]]'' – [[Uganda]] and [[Congo Basin|Congo]]; Pliocene
** †''[[Hexaprotodon iravaticus]]'' – [[Myanmar]]; Pliocene – Pleistocene
** †''[[Hexaprotodon karumensis]]'' – Kenya and [[Eritrea]]; Pleistocene
** †''[[Hexaprotodon namadicus]]'' – [[India]]; (possibly same as ''Hex. palaeindicus'')
** †''[[Hexaprotodon palaeindicus]]'' – India;
** †''[[Hexaprotodon pantanellii]]'' – [[Italy]]; Pliocene
** †''[[Hexaprotodon protamphibius]]'' – Kenya and Chad; Pliocene
** †''[[Hexaprotodon siculus]]'' –
** †''[[Hexaprotodon sivajavanicus]]'' – Indonesia
** †''[[Hexaprotodon sivalensis]]'' – India
** †''Hexaprotodon'' sp. (undescribed) – Myanmar
* Genus ''[[Archaeopotamus]]'' – formerly included in ''Hexaprotodon''
** †''Archaeopotamus harvardi'' –  [[Arabian Peninsula]] and Central Africa; [[Miocene]] – [[Pliocene]]
** †''Archaeopotamus lothagamensis'' – [[Kenya]]; Miocene
* One or two undescribed species
* Genus ''[[Saotherium]]'' – formerly included in ''Hexaprotodon''
** †''{{ill|Saotherium mingoz|it}}'' [[Chad]]; Pliocene