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Pongo hooijeri is an extinct species of orangutan from the Pleistocene of Vietnam.[1] It was named in honor of paleontologist Dirk Albert Hooijer. Fossils of the ape were found in the Tham Hai Cave.[2]
| Pongo hooijeri Temporal range: Pleistocene
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|---|---|
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Mammalia |
| Order: | Primates |
| Suborder: | Haplorhini |
| Infraorder: | Simiiformes |
| Family: | Hominidae |
| Genus: | Pongo |
| Species: | †P. hooijeri
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| Binomial name | |
| †Pongo hooijeri Schwartz et al. 1995
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Description edit
Pongo hooijeri is only known from isolated teeth. In its initial description, it was distinguished from other organutan species by its generally larger tooth size than living organgutans, as well as a number of morphological characters of the teeth, differing from Pongo pygmaeus "in lacking significant crenulation 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."[2]
Taxonomy edit
Harrison et al. 2014 argued that the species should be considered a junior synonym of the more widespread extinct species Pongo weidenreichi.[3]
References edit
- ^ Grehan; Schwartz (2009). "Evolution of the second orangutan: phylogeny and biogeography of hominid origins". Journal of Biogeography. 36 (10): 1823–1844. Bibcode:2009JBiog..36.1823G. doi:10.1111/j.1365-2699.2009.02141.x. S2CID 26154219.
- ^ a b Schwartz, J.H.; Vu The Long; Nguyen Lan Cuong; Le Trung Kha; Tattersall, I (1995). "A review of the Pleistocene hominoid fauna of the Socialist Republic of Vietnam (excluding Hylobatidae)". Anthropological Papers of the American Museum of Natural History (76): 1–24. hdl:2246/259.
- ^ Harrison, Terry; Jin, Changzhu; Zhang, Yingqi; Wang, Yuan; Zhu, Min (December 2014). "Fossil Pongo from the Early Pleistocene Gigantopithecus fauna of Chongzuo, Guangxi, southern China". Quaternary International. 354: 59–67. Bibcode:2014QuInt.354...59H. doi:10.1016/j.quaint.2014.01.013. ISSN 1040-6182.
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