Pongo hooijeri

{{Short description|Extinct species of orangutan}} {{More footnotes needed|date=November 2020}} {{Speciesbox | fossil_range = Pleistocene | image = Adult Female and Infant Vietnamese Orangutan.jpg | image_caption = Restoration of an adult female and infant | genus = Pongo | species = hooijeri | authority = Schwartz et al., 1995 | extinct = yes }} '''''Pongo hooijeri''''' is an extinct species of orangutan from the Pleistocene of Vietnam.<ref name=Grehan>{{cite journal | last1 = Grehan | last2 = Schwartz | year = 2009 | title = Evolution of the second orangutan: phylogeny and biogeography of hominid origins | journal = Journal of Biogeography | volume = 36 | issue = 10 | pages = 1823–1844 | doi = 10.1111/j.1365-2699.2009.02141.x| bibcode = 2009JBiog..36.1823G | s2cid = 26154219 }}</ref> It was named in honor of paleontologist Dirk Albert Hooijer. Fossils of the ape were found in the Tham Hai Cave.<ref name=":0">{{cite journal |author1=Schwartz, J.H. |author2=Vu The Long |author3=Nguyen Lan Cuong |author4=Le Trung Kha |author5=Tattersall, I |year=1995 |title=A review of the Pleistocene hominoid fauna of the Socialist Republic of Vietnam (excluding Hylobatidae) |url=https://digitallibrary.amnh.org/items/b7c7e7bb-5442-406b-abd5-72e401693e10 |journal=Anthropological Papers of the American Museum of Natural History |issue=76 |pages=1–24 |hdl=2246/259}}</ref>

== Description == ''Pongo hooijeri'' is only known from isolated teeth. In its initial description, it was distinguished from other orangutan species by its generally larger tooth size than living orangutans, as well as a number of morphological characters of the teeth, differing from ''Pongo pygmaeus'' "in lacking significant crenelation on the occlusal surfaces of the molars and upper premolars, and on the basins of the lower premolars. Incisors are not known. Molar cusp disposition similar to that of ''P. pygmaeus'', but the cusps themselves are puffier and more rounded occlusally as well as on their external slopes. The occlusal surfaces are thus more poorly defined, and the occlusal basins are more constricted."<ref name=":0" />

== Taxonomy == Harrison et al. 2014 argued that the species should be considered a junior synonym of the more widespread extinct species ''Pongo weidenreichi.''<ref>{{Cite journal |last1=Harrison |first1=Terry |last2=Jin |first2=Changzhu |last3=Zhang |first3=Yingqi |last4=Wang |first4=Yuan |last5=Zhu |first5=Min |date=December 2014 |title=Fossil Pongo from the Early Pleistocene Gigantopithecus fauna of Chongzuo, Guangxi, southern China |url=http://dx.doi.org/10.1016/j.quaint.2014.01.013 |journal=Quaternary International |volume=354 |pages=59–67 |doi=10.1016/j.quaint.2014.01.013 |bibcode=2014QuInt.354...59H |issn=1040-6182|url-access=subscription }}</ref>

==References== {{Reflist}}

Category:Pleistocene primates Category:Prehistoric apes Category:Fossil taxa described in 1995 Category:Prehistoric Vietnam Category:Pleistocene mammals of Asia Category:Fossils of Vietnam Category:Extinct animals of Vietnam