The mammal assemblage of the hominid site TM266 (Late Miocene, Chad Basin): ecological structure and paleoenvironmental implications
| Autor: | Patrick Vignaud, Michel Brunet, Soizic Le Fur, Emmanuel Fara, Hassane Taïsso Mackaye |
|---|---|
| Přispěvatelé: | Institut International de Paléoprimatologie, Paléontologie Humaine : Evolution et Paléoenvironnement ( IPHEP ), Université de Poitiers-Centre National de la Recherche Scientifique ( CNRS ), Biogéosciences [Dijon] ( BGS ), Université de Bourgogne ( UB ) -AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique ( CNRS ), Departement de Paleontologie, Université de N'Djaména, Chaire de Paléoanthropologie et de Préhistoire, Collège de France ( CdF ), ANR 05-BLAN-0235,ANR 05-BLAN-0235, Institut International de Paléoprimatologie, Paléontologie Humaine : Evolution et Paléoenvironnement (IPHEP), Université de Poitiers-Centre National de la Recherche Scientifique (CNRS), Biogéosciences [UMR 6282] [Dijon] (BGS), Centre National de la Recherche Scientifique (CNRS)-Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Chaire Paléoanthropologie et Préhistoire, Collège de France (CdF (institution)), ANR-05-BLAN-0235,Evol. Humaine,EVOLUTION HUMAINE : DE L'ORIGINE DES PREMIERS PRIMATES ANTHROPOÏDES A L'EMERGENCE DES HOMINIDES. EVOLUTIONS ET PALEOENVIRONNEMENTS(2005), Université de Bourgogne (UB)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: |
0106 biological sciences
010506 paleontology Chad Climate Context (language use) Mandible Late Miocene Environment Paleoenvironments 010603 evolutionary biology 01 natural sciences Swamp Bone and Bones Evolution Molecular Early hominids Paleontology Water Supply Assemblage (archaeology) Animals Ecology Evolution Behavior and Systematics Ecosystem 0105 earth and related environmental sciences [ SDU.STU.PG ] Sciences of the Universe [physics]/Earth Sciences/Paleontology Mammals Population Density geography geography.geographical_feature_category biology Ecology [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] Body Weight Skull Genetic Variation Hominidae General Medicine 15. Life on land biology.organism_classification Diet Taxon Mammal paleocommunity [ SDV.BID.EVO ] Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] Habitat Mammal [SDU.STU.PG]Sciences of the Universe [physics]/Earth Sciences/Paleontology Sahelanthropus Tooth Locomotion |
| Zdroj: | Die Naturwissenschaften Die Naturwissenschaften, 2009, 96 (5), pp.565-574. 〈10.1007/s00114-008-0504-7〉 Die Naturwissenschaften, 2009, 96 (5), pp.565-574. ⟨10.1007/s00114-008-0504-7⟩ |
| DOI: | 10.1007/s00114-008-0504-7〉 |
| Popis: | 10 pages; International audience; Characterizing the paleoenvironmental context of the first hominids is a key issue for understanding their behavioral and morphological evolution. The present study aims at reconstructing the paleoenvironment of the TM266 vertebrate assemblage (Toros-Menalla, Northern Chad) that yielded the earliest known hominid Sahelanthropus tchadensis (7 Ma). For the first time, a quantitative analysis is carried out on the fossil mammal assemblage associated with that hominid. Two complementary approaches were applied: (1) the analysis of the relative abundances of taxa and their habitat preferences; and (2) the study of the distribution of taxa within three meaningful ecovariables: locomotion, feeding preferences, and body mass. The resulting taxonomic and paleoecological structures are used to reconstruct the diversity and the relative extent of the habitats in that part of northern Chad seven million years ago. The paleoenvironment was composed of open areas with dry and humid grasslands, prevailing over wooded habitats. Water was also widely available as freshwater bodies and certainly swamps. It appears that the high habitat diversity of the landscape is a common feature among paleoenvironments associated with early hominids. |
| Databáze: | OpenAIRE |
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