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paleoanthropology, genetics and evolution

A new hominid from the Upper Miocene of Chad, Central Africa.

Mon, 2012-02-20 03:30 -- John Hawks
TitleA new hominid from the Upper Miocene of Chad, Central Africa.
Publication TypeJournal Article
Year of Publication2002
AuthorsBrunet, M, Guy, F, Pilbeam, D, Mackaye, HT, Likius, A, Ahounta, D, Beauvilain, A, Blondel, C, Bocherens, H, Boisserie, J-R, de Bonis, L, Coppens, Y, Dejax, J, Denys, C, Duringer, P, Eisenmann, V, Fanone, G, Fronty, P, Geraads, D, Lehmann, T, Lihoreau, F, Louchart, A, Mahamat, A, Merceron, G, Mouchelin, G, Otero, O, Pelaez Campomanes, P, Ponce De Leon, M, Rage, J-C, Sapanet, M, Schuster, M, Sudre, J, Tassy, P, Valentin, X, Vignaud, P, Viriot, L, Zazzo, A, Zollikofer, C
JournalNature
Volume418
Issue6894
Pagination145-51
Date Published2002 Jul 11
ISSN0028-0836
Keywordsafrica, Chad, early hominins, hominin origins, North Africa, S. tchadensis, sahelanthropus, West Africa
Abstract

The search for the earliest fossil evidence of the human lineage has been concentrated in East Africa. Here we report the discovery of six hominid specimens from Chad, central Africa, 2,500 km from the East African Rift Valley. The fossils include a nearly complete cranium and fragmentary lower jaws. The associated fauna suggest the fossils are between 6 and 7 million years old. The fossils display a unique mosaic of primitive and derived characters, and constitute a new genus and species of hominid. The distance from the Rift Valley, and the great antiquity of the fossils, suggest that the earliest members of the hominid clade were more widely distributed than has been thought, and that the divergence between the human and chimpanzee lineages was earlier than indicated by most molecular studies.

DOI10.1038/nature00879
Alternate JournalNature
Citation KeyBrunet:2001
PubMed ID12110880

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