Abstract
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 sites2 and a probable Homo erectus cranio-facial fragment3 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, KT12 (15°58'10" N, 18°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 afarensis4, documents the presence of an early hominid a considerable distance, 2,500 km, west of the Rift Valley.
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References
Abadie, J., Barbeau, J. & Coppens, Y. C.r. Acad. Sci., Paris 248, 3329–3330 (1959).
Coppens, Y. in Background to Evolution in Africa (eds Bishop, W. W. & Clark, J. D.) 89–97 (Univ, Chicago Press, 1967).
Coppens, Y. C.r. Acad. Sci., Paris 260, 2869–2871 (1965).
Johanson, D. C., White, T. D. & Coppens, Y. Am. J. phys. Anthrop. 57, 545–603 (1982).
Schneider, J. L. thesis, Univ. Avignon (1989).
Schneider, J. L. & Wolff, J. P. Document du BRGM, Orléans 209, (1992).
Beden, M. in L'environnement des Hominidés au Plio-Pléistocène (ed. Fondation Singer Polignac) 21–44 (Masson, Paris, 1985).
Leakey, M. D. et al. Nature 262, 460–466 (1976).
Guérin, C. Bull. Soc. géol. Fr. XXI, 283–288 (1979).
Eisenmann, V. in Koobi Fora Project (ed. Harris, J. M.) 156–214 (Clarendon, Oxford, 1993).
Eisenmann, V. Geobios 9, 577–605 (1976).
Harris, J. M. & White, T. D. Trans. Am. phil. Soc. 69, 1–128 (1979).
Harris, J. M. in Koobi Fora Project (ed. Harris, J. M.) 215–302 (Clarendon, Oxford, 1983).
Cooke, H. B. S. in L'environnement des Hominidés au Plio-Pléistocène (ed. Fondation Singer Polignac) 101–117 (Masson, Paris, 1985).
Geze, R. thesis, Univ. Paris (1980).
Geze, R. in L'environnement des Hominidés au Plio-Pléistocène (ed. Fondation Singer Polignac) 81–100 (Masson, Paris, 1985).
Ruvolo, M. et al. Proc. natn. Acad. Sci. U.S.A. 91, 8900–8904 (1994).
Morin, P. A. et al. Science 265, 1193–1201 (1994).
Uchida, A. Am. J. phys. Anthrop. (suppl.) 16, 198–199 (1993).
Groves, C. P. in Comparative Primate Biology: Systematics, Evolution and Anatomy (eds Swindler, D. R. & Erwin, J.) 187–217 (Liss. New York, 1986).
Braga, J. thesis, Univ. Bordeaux (1995).
Jolly, C. J. in Species, Species Concepts, and Primate Evolution (eds Kimbel, W. H. & Martin, L. B.) 67–108 (Plenum, New York, 1993).
Grubb, P. in Pigs, Peccaries and Hippos Status Survey and Conservation Action Plan (ed. Oliver, W. L R.) 66–75 (IUCN, Gland. Switzerland, 1993).
Wood, B. A. in The Cambridge Encyclopedia of Human Evolution (eds Jones, S., Martin, R. & Pilbeam, D.) 231–240 (Cambridge Univ. Press, 1992).
White, T. D., Suwa, G. & Asfaw, B. Nature 371, 306–312 (1994).
Kortiandt, A. New Perspectives on Ape and Human Evolution, 9–100 (Stichting voor Psychobiologie, Amsterdam, 1972).
Coppens, Y. Le singe, l'Afrique et l'Homme (ed. Jacob, O.) 1–148 (Fayard, Paris, 1983).
Pickford, M. Hum. Evol. 5, 1–20 (1990).
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Brunet , M., Beauvilain, A., Coppens, Y. et al. The first australopithecine 2,500 kilometres west of the Rift Valley (Chad). Nature 378, 273–275 (1995). https://doi.org/10.1038/378273a0
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DOI: https://doi.org/10.1038/378273a0
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