IS TURKANA BOY HOMO ERECTUS OR HOMO ERGASTER?
Turkana Boy (Homo erectus or homo ergaster) named after the discovery of Kamoya Kimeu in 1984 at Nariokotome near Lake Turkana in Kenya. He discovered a skeleton of 11 to 12 years old boy and the only major exclusion on the skeleton was the hands and feets. It was exposed to be dated 1.6 million years and the brain size was estimated to be 880cc (at adulthood 910cc). It was found that the boy was 160 cm tall (estimated at adulthood might have been about 185 cm. Anatomically, the H. ergaster and H.erectus are similar the difference comes in the higher cranial vault, lighter frame, and facial structure ( http://www.msu.edu/~heslipst/contents/ANP440/ergaster.htm ).
The theory is currently a great deal of discussion as to whether Homo erectus and Homo ergaster were separate species. H.erectus remains still remains an important hominine since it is believed to be the oldest representation of early human migration, but the recent analysis indicate that H.erectus may be the Asia H. neanderthalensis, in that its linage did not give rise to later variants of H.sapiens. The arguments rotate around the interpretation of morphological differences between early African fossils (H.ergester) and those found in Asia (H.erectus and African sites). Since Erst Mayr is biological species definition cannot be tested, then this issue will never be fully resolved.
1) http://en.wikipedia.org/wiki/Homo_erectus#Description (29/03/2006 ; 15:35)
2) http://www.msu.edu/~heslipst/contents/ANP440/ergaster.htm (19/03/2006;12:09 )
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