KNM-ER 992 explained

Catalog Number:	KNM ER 992
Species:	Homo ergaster
Age:	1.5 mya
Place Discovered:	Koobi Fora, Kenya
Date Discovered:	1971
Discovered By:	Richard Leakey
Footnotes:	Originally thought to be Homo habilis; reclassified as Homo ergaster in 1975

KNM ER 992 is a old fossilized lower jaw discovered by Richard Leakey in 1971 at Lake Turkana, Kenya. The mandible was considered by C. Groves and V. Mazak to be the holotype specimen for Homo ergaster.^{[1] [2] [3]}

See also

• List of fossil sites (with link directory)
• List of hominina (hominin) fossils (with images)

External links

• • Web site: Homo ergaster lower jaw cast. Australian Museum . 2001. March 13, 2011.
• Web site: Images of KNM ER 992 . The Smithsonian Institution . 2006-07-14 . dead . https://web.archive.org/web/20060711040555/http://www.mnh.si.edu/anthro/humanorigins/ha/ER992.html . July 11, 2006 .

Notes and References

1. Groves . C. P. . Mazak . V. . An Approach to the Taxonomy of the Hominidae: Gracile Villafranchian Hominids of Africa . Casopis Pro Mineralogii a Geologii . 1975 . 20 . 225–247.
2. Book: Tattersall . Homo ergaster and Its Contemporaries . Henke . W. . Tattersall . I. . Handbook of Paleoanthropology . 1634–1653. 2015 . Berlin, Heidelberg . 10 Homo ergaster and Its Contemporaries.
3. Web site: Heslip . Steven. Homo ergaster . 2001. Michigan State University. (broken link)