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New palaeontological assemblage, sedimentological and chronological data from the Pleistocene Ma U'Oi cave (northern Vietnam) |
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| Authors: | Anne-Marie Bacon, Fabrice Demeter, St phane Rouss , Vu The Long, Philippe Duringer, Pierre-Olivier Antoine, Nguyen Kim Thuy, Bui Thi Mai, Nguyen Thi Mai Huong, Yukio Dodo, Hirofumi Matsumura, Mathieu Schuster,Tomoko Anezaki |
| Affiliation: | aUPR 2147 du CNRS, 44, rue de l'Amiral Mouchez, 75014 Paris, France bUnité d'Ecoanthropologie et Ethnobiologie, Espace UMR 5145, Musée de l'Homme, 17, place du Trocadéro, 75116 Paris et Laboratoire de Paléoanthropologie et Préhistoire du Collège de France, 11, place Marcellin Berthelot, 75005 Paris, France cUniversité Louis Pasteur, Institut de Géologie (EOST-CGS), UMR 7517, 1, rue Blessig, 67084 Strasbourg cedex, France dNational Center for Social Sciences and Humanities of Vietnam, Institute of Archaeology, 61, Phan Chu Trinh, Hanoi, Vietnam eEquipe de Géodynamique, Laboratoire des Mécanismes de Transfert en Géologie, Avenue Edouard Belin, F-31400 Toulouse, France fCentre d'études Préhistoire, Antiquité, Moyen Age, UMR6130, 250 rue Albert Einstein, Sophia Antipolis, 06560 Valbonne, France gDepartment of Anatomy and Anthropology, Tohoku University School of Medecine, 2-1 Seiryo-machi Aoba-ku, Sendai 980-8575, Japan hDepartment of Anatomy, Sapporo Medical University, S1, W17, Chuou-Ku, Sapporo 060-8556, Japan iUniversité de Bretagne Occidentale, Institut Universitaire Européen de la Mer, CNRS UMR 6538 Domaines Océaniques, Place Nicolas Copernic, 29280 Plouzané, France jSystematics and Phylogeny Section, Primate Research Institute, Kyoto University, Inuyama, Aichi, 484-8506, Japan |
| Abstract: | This paper describes recent material gathered during the second fieldwork at Ma U'Oi in November 2002 by a Vietnamese–French–Japanese team. The Ma U'Oi cave, located in the province of Hoà Binh (60 km SW from Hanoi), northern Vietnam, belongs to a karstic network developed in Triassic dark-grey limestones. The cave is filled with coarse-grained breccias containing numerous fossil remains, partially preserved at several loci inside the cave (wall, vault and ground). We describe new teeth which confirm the occurrence of mammal taxa already mentioned at Ma U'Oi (Bacon et al., 2004)[Bacon, A-M., Demeter, F., Schuster, M., Long, V.T., Thuy, N.K., Antoine, P-O., Sen, S., Nga, H.H., Huong, N.T.M., 2004. The Pleistocene Ma U'Oi cave, northern Vietnam: palaeontology, sedimentology and palaeoenvironments. Geobios 37, 305–314], while others, mainly microvertebrates, emphasize the occurrence of new species for the Pleistocene of Vietnam. We report here, for the first time, the occurrence of these microvertebrates of different groups (primates, rodents, insectivores, small reptiles and amphibians) in the faunal assemblage. Among mammal taxa, the presence of one more hominid affiliated to archaic Homo is also attested by our findings. U/Th dating carried out on 2 samples extracted from breccia speleothems confirms the biochronological estimate, with fossiliferous fillings ranging from late Middle Pleistocene to Late Pleistocene. |
| Keywords: | Vietnam Pleistocene Karst U/Th dating Microvertebrate assemblage Archaic Homo |
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