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Oldest hominid skeleton unveiled

LMU researcher studies Ardipithecus’ environment

Munich, 10/01/2009

These results open a new chapter on human evolution by giving insights into a previously poorly understood period, only a few million years after the human line diverged from that leading to chimpanzees. As part of a large international team under the lead of professor Tim White, Berkeley, USA, LMU researcher Ioannis Giaourtsakis participated in the study of fossils that have been discovered close to the remains of Ardipithecus ramidus, the earliest skeleton known from the human branch of the primate family tree. Ardipithecus is older and more primitive than Australopithecus, which is known by several species – including the famous skeleton of “Lucy”. The results provide surprising insights into the anatomy, behaviour, evolutionary relationship and ecological preferences of the early hominid. LMU palaeontologist Ioannis Giaourtsakis and his international collegues analyzed with a variety of methods the morphological and chemical properties of animal fossils to reconstruct the environmental setting in which Ardipithecus found his habitat. They have concluded that on the ground the hominid was able to walk on two legs but as a capable climber preferred the wooded habitats: Bipedality therefore developed before hominids spread to the savannah and adopted a different lifestyle.

 

Publication:
Science Special Issue, Vol 326; 2 October 2009
Doi: 10.1126/Science.1175822
Website: www.sciencemag.org/ardipithecus

Contact:
Dipl.-Geol. Ioannis Giaourtsakis
Department of Earth and Environmental Sciences, Division of Paleonthology
Phone: +49 (0) 89 / 2180 – 2706
Websites: www.en.palaeontologie.geowissenschaften.uni-muenchen.de; www.lrz-muenchen.de/~NatSamm/english/sammlung/pale_geo/paleo_geo.htm

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