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Earliest human remains in Eurasia: New 40Ar/39Ar dating of the Dmanisi hominid-bearing levels,Georgia |
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| Authors: | Tristan Garcia Gilbert Féraud Christophe Falguères Henry de Lumley Christian Perrenoud David Lordkipanidze |
| Institution: | 1. Département de Préhistoire du Muséum National d''Histoire Naturelle, UMR 7194 du CNRS, 1, rue René Panhard, 75013 Paris, France;2. Géosciences Azur, Université de Nice-Sophia Antipolis, UMR 6526 du CNRS, 06108 Nice Cedex 02, France;3. Institut de Paléontologie Humaine, 1, rue René Panhard, 75013 Paris, France;4. Département de Préhistoire du Muséum National d''Histoire Naturelle UMR 5198 du CNRS, Centre Européen de Recherches Préhistoriques, av. Léon-Jean-Grégory, 66720 Tautavel, France;5. Georgian National Museum, 3, Rustaveli Avenue, 0105 Tbilisi, Georgia |
| Abstract: | Several hominid remains have been discovered in the open-air site of Dmanisi (Georgia), the oldest prehistoric site in Eurasia. Two major arguments prove that this site is close in age to the Plio-Pleistocene boundary: a Villafranchian fauna and the morphological characteristics of hominid remains recently ascribed to Homo georgicus. Direct dating of the lower hominid-bearing level was carried out on volcanic glass and minerals using the 40Ar/39Ar method. The concordant results from two different sampled locations allow the determination of the age of the earliest human presence in Eurasia. This radioisotopic result strengthens the argument that the first dispersal of hominids outside Africa occurred at least 1.8 Ma ago. |
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