The first australopithecine 2,500 kilometres west of the Rift Valley (Chad)
Nature
; 378(6554): 273-5, 1995 Nov 16.
Article
en En
| MEDLINE
| ID: mdl-7477344
The first sites with Pliocene and Pleistocene mammals west of the Rift Valley in Central Africa in northern Chad were reported in 1959 (ref. 1), and documented the presence of mixed savannah and woodland habitats. Further sites and a probable Homo erectus cranio-facial fragment were subsequently discovered. In 1993 a survey of Pliocene and Pleistocene formations in the Borkou-Ennedi-Tibesti Province of Chad (B.E.T.) led to the discovery of 17 new sites in the region of Bahr el Ghazal (classical Arabic for River of the Gazelles) near Koro Toro. One site, KT 12 (15 degrees 58'10"N, 18 degrees 52'46"E) yielded an australopithecine mandible associated with a fauna biochronologically estimated to be 3.0-3.5 Myr old. Australopithecine species described since 1925 are known from southern Africa and from sites spread along the eastern Rift Valley from Tanzania to Ethiopia (Fig. 1). This new find from Chad, which is most similar in morphology to Australopithecus afarensis, documents the presence of an early hominid a considerable distance, 2,500 km, west of the Rift Valley.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Hominidae
/
Evolución Biológica
/
Fósiles
Límite:
Adult
/
Animals
/
Humans
País/Región como asunto:
Africa
Idioma:
En
Revista:
Nature
Año:
1995
Tipo del documento:
Article
País de afiliación:
Francia
Pais de publicación:
Reino Unido