Journal article
Virtual cranial reconstruction of Sahelanthropus tchadensis.
- Zollikofer CP Anthropologisches Institut/MultiMedia Laboratorium, Universität Zürich-Irchel, Winterthurerstrasse 190, 8057 Zürich, Switzerland.
- Ponce de León MS
- Lieberman DE
- Guy F
- Pilbeam D
- Likius A
- Mackaye HT
- Vignaud P
- Brunet M
- 2005-04-09
Published in:
- Nature. - 2005
Animals
Brain
Chad
Computer Simulation
Face
Fossils
History, Ancient
Hominidae
Humans
Pan troglodytes
Phylogeny
Skull
English
Previous research in Chad at the Toros-Menalla 266 fossiliferous locality (about 7 million years old) uncovered a nearly complete cranium (TM 266-01-60-1), three mandibular fragments and several isolated teeth attributed to Sahelanthropus tchadensis. Of this material, the cranium is especially important for testing hypotheses about the systematics and behavioural characteristics of this species, but is partly distorted from fracturing, displacement and plastic deformation. Here we present a detailed virtual reconstruction of the TM 266 cranium that corrects these distortions. The reconstruction confirms that S. tchadensis is a hominid and is not more closely related to the African great apes. Analysis of the basicranium further indicates that S. tchadensis might have been an upright biped, suggesting that bipedalism was present in the earliest known hominids, and probably arose soon after the divergence of the chimpanzee and human lineages.
- Language
-
- English
- Open access status
- closed
- Identifiers
-
- DOI 10.1038/nature03397
- PMID 15815628
- Persistent URL
- https://sonar.ch/global/documents/243721
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