'''Australopithecus bahrelghazali''' is a
fossil hominin that was first discovered in
1993 1by the
paleontologist Michel Brunet in the
Bahr el Ghazal valley near
Koro Toro, in
Chad, that Brunet named
Abel. The find consists of a mandibular fragment, a lower second incisor, both lower canines, and all four of its premolars, still affixed within the
dental alveoli. The specimen's proper name is KT-12/H1; "Abel" is the informal name, a dedication to Brunet's deceased colleague
Abel (hominid) Brillanceau. The specimen located roughly 2,500
kilometers West from the
East African Great Rift Valley and were only a few teeth and a partial jaw found in deposits thought to be 3.0 to 3.5 million years old.
The mandible KT-12/H1 discovered has similar features to the dentition of ''
Australopithecus afarensis''; this has brought researchears like William Kimbel to argue that Abel is not an exemplar of a separate
species, but "falls within the range of variation" of the ''Australopithecus afarensis''. By 1996, Brunet and his team classified KT 12/H1 as the holotype specimen for ''Australopithecus bahrelghazali''
2. This claim is difficult to substantiate,as the describers have kept KT 12/H1 locked away from the general paleoanthropological community, contrary to the ''International Code of Zoological Nomencalture'' 1999
3. This species is a mystery to some as it is the only
australopithecine fossil found in
Central Africa. It is also of great importance as it was the first fossil to show that geographically there is a "a third window" of early hominid evolution.
References
1. Brunet, Michel, Beauvilain, Alain, Coppens, Yves, Heintz, Emile, Moutaye, Aladji H.E.,
and
David Pilbeam. 1995 The first australopithecine 2,500 kilometres west of the Rift Valley (Chad).''Nature'' 378: 273-275.
2.Brunet, M., A. Beauvilain, Y. Coppens, E. Heintz, A.H.E. Moutaye, and D. Pilbeam. 1996. "Australopithecus bahrelghazali, une nouvelle espece d'Hominide ancien de la region de Koro Toro (Tchad)." In ''Comptes Rendus des seances de l'Academie des Sciences'', vol. 322, pp. 907-913.
3. Schwartz, Jeffrey H., and Ian Tattersal. 2005 The Human Fossil Record, vol.4: Craniodental Morphology of Early Hominids (Genra Australopithecus, Paranthropus, Orrorin) and Overview. John Wiley and Sons, New Jersey.
See also
★
List of fossil sites ''(with link directory)''
★
List of hominina (hominid) fossils ''(with images)''
External links
★ http://www.msu.edu/~heslipst/contents/ANP440/bahrelghazali.htm
★ http://www.columbia.edu/itc/anthropology/v1007/2002projects/web/australopithecus/austro.html