Earlier Established Forms
- found: Walker mam. world: p. 474.
- found: Web. 3.
- found: Corbet world list mam. spec.: p. 105.
- found: ITIS, Jan. 7, 2014 (Genus Pongo, Family Hominidae)
- found: Mammal species of the world, via Smithsonian Institution National Museum of Natural History website, Jan. 7, 2014 (Genus Pongo, Family Hominidae. Synonyms: Faunus Oken, 1816; Lophotus Fischer, 1813; Macrobates Bilberg, 1828; Satyrus Lesson, 1840)
- found: Animal diversity web, Jan. 7, 2014 (Pongo abelii (Sumatran orangutan); Pongo pygmaeus (Bornean orangutan). Genus Pongo - orangutan, Family Hominidae - great apes and humans)
- found: Wikipedia, Jan. 7, 2014 (under Orangutan: The orangutans are the two exclusively Asian species of extant great apes. Native to Indonesia and Malaysia, orangutans are currently found in only the rainforests of Borneo and Sumatra. Classified in the genus Pongo, orangutans were considered to be one species. However, since 1996, they have been divided into two species: the Bornean orangutan (P. pygmaeus) and the Sumatran orangutan (P. abelii).)
- found: Pearson, E. Conservation psychology and its application to the survival of orangutans (Pongo abelii and Pongo pygmaeus), 2012: p. 2 (Orangutans are a member of the primate order and belong to the Great Ape family (Hominidae), along with humans, chimpanzees, bonobos, and gorillas; orangutans are placed in the subfamily Ponginae and belong to the genus Pongo; Bornean Orangutan, Pongo pygmaeus; Sumatran Orangutan, Pongo abelii) p. 3 (Although there was once debate as to whether Sumatran and Bornean orangutans were different species (as opposed to only sub- species), it is now commonly accepted they are in fact two distinct species. Support for this classification includes the finding that molecular differences between these populations are similar to those between chimpanzees and bonobos which are regarded as different species.)
- found: OCLC, Jan. 8, 2014 (in titles: Bornean and Sumatran orang-utans; orang-utans (Pongo spp.))
- 1990-11-06: new
- 2014-04-11: revised
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