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 B. Ngeneo in 1971. The mandible was considered by C. Groves and V. Mazak Koobi Fora, Kenya to be the holotype specimen for Homo ergaster. [1]