KNM ER 992

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KNM ER 992
Fossilized lower jaw of Homo ergaster (catalog number KNM ER 992).jpg
Catalog number KNM ER 992
Species Homo ergaster
Age 1.5 mya
Place discovered Koobi Fora, Kenya
Date discovered 1975
Discovered by Richard Leakey

KNM ER 992 is a 1.5 million years old fossilized lower jaw discovered by Richard Leakey in 1971 at Turkana lake, Kenya. The mandible was considered by C. Groves and V. Mazak to be the holotype specimen for Homo ergaster. [1]

See also[edit]


  1. ^ Heslip, Steven (2001). "Homo ergaster". Michigan State University.  (broken link)

External links[edit]