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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Toumaï', Late Miocene of Chad, the new earliest member of the human branch
Comptes Rendus - Palevol, Volume 3, No. 4, Year 2004
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Description
The new Chadian hominid Sahelanthropus tchadensis Brunet et al., 2002, nicknamed 'Toumaï', recovered by the MPFT ( Mission paléoanthropologique franco-tchadienne, scientific collaboration between the University of Poitiers, University of N'Djamena and CNAR, National Center for the support of Science of N'Djamena) from the Late Miocene of Toros-Menalla (Djurab desert) is associated with a vertebrate fauna (more than 45 species) for which the mammalian component (at least 25 species) indicates a biochronological age close to 7 Ma. The fauna comprises vertebrates that are aquatic (fish, turtles, crocodiles) and amphibious (anthracotheriids, hippopotamids) but also species adapted to the gallery and islet forests (monkeys), wooded savanna (proboscideans, giraffids, suids, etc) and grassland (bovids, tridactyl equids). Sedimentological data (aeolian sandstones, perilacustrine sandstones, diatomites) agree with this mosaic of environments and indicate a vegetated perilacustrine belt between lake and desert. The new hominid is probably temporally close to the common ancestor of chimpanzees and humans but displays a unique combination of primitive and derived characters that clearly shows a close relationship with later hominids rather than with chimpanzees or gorilla. The geographic location of Toumaï, 2500 km west of the Rift Valley, along with its great antiquity, suggest an early widespread hominid distribution (Sahel and East Africa, at least by 6 Ma), and a somewhat earlier chimpanzee-human divergence (at least by 7 Ma ago) than previously indicated by many molecular studies. © 2004 Académie des sciences. Publié par Elsevier SAS. Tous droits réservés.
Authors & Co-Authors
Brunet, Michel
France, Poitiers
Universite de Poitiers
Guy, Franck
France, Poitiers
Universite de Poitiers
United States, Cambridge
Harvard University
Boisserie, Jean Renaud
France, Poitiers
Universite de Poitiers
United States, Berkeley
University of California, Berkeley
Djimdoumalbaye, Ahounta
France, Poitiers
Universite de Poitiers
Lehmann, Thomas
France, Poitiers
Universite de Poitiers
Lihoreau, Fabrice
France, Poitiers
Universite de Poitiers
Louchart, Antoine
France, Villeurbanne
Université Claude Bernard Lyon 1
Schuster, Mathieu
France, Strasbourg
Université de Strasbourg
Tafforeau, Paul
France, Montpellier
Institut Des Sciences de L’evolution de Montpellier
Likius, Andossa
Chad, N'djamena
Universite de N'djamena
MacKaye, Hassan Taïsso
Chad, N'djamena
Universite de N'djamena
Blondel, Cécile
France, Poitiers
Universite de Poitiers
Bocherens, Hervé
France, Montpellier
Institut Des Sciences de L’evolution de Montpellier
de Bonis, Louis
France, Poitiers
Universite de Poitiers
Coppens, Yves
France, Paris
Collège de France
Denis, Christiane
France, Paris
Museum National D'histoire Naturelle
Duringer, Philippe
France, Strasbourg
Université de Strasbourg
Eisenmann, Véra
France, Paris
Museum National D'histoire Naturelle
Flisch, Alexander
Switzerland, Dubendorf
Labs for Materials Testing
Geraads, Denis
France, Paris
Cnrs Centre National de la Recherche Scientifique
López-Martínez, Nieves
Spain, Madrid
Universidad Complutense de Madrid
Otero, Olga
France, Poitiers
Universite de Poitiers
Peláez-Campomanes, Pablo
Spain, Madrid
Csic - Museo Nacional de Ciencias Naturales Mncn
Pilbeam, David R.
United States, Cambridge
Harvard University
de León, Marcia Silvia Ponce
Switzerland, Zurich
Universität Zürich
Vignaud, Patrick
France, Poitiers
Universite de Poitiers
Viriot, Laurent
France, Poitiers
Universite de Poitiers
Zollikofer, Christoph Peter Eduard
Switzerland, Zurich
Universität Zürich
Statistics
Citations: 28
Authors: 28
Affiliations: 14
Identifiers
Doi:
10.1016/j.crpv.2004.04.004
ISSN:
16310683
Study Locations
Multi-countries
Chad