A rhinocerotid-dominated megafauna at the MIS6-5 transition: The late Middle Pleistocene Coc Muoi assemblage, Lang Son province, Vietnam - Université de Montpellier Accéder directement au contenu
Article Dans Une Revue Quaternary Science Reviews Année : 2018

A rhinocerotid-dominated megafauna at the MIS6-5 transition: The late Middle Pleistocene Coc Muoi assemblage, Lang Son province, Vietnam

Nguyen Anh Tuan
  • Fonction : Auteur
Sam Canh Dung
  • Fonction : Auteur
Truong Huu Nghia
  • Fonction : Auteur
Tran Ngoc Minh
  • Fonction : Auteur
  • PersonId : 1004020
Pham Thanh Son
  • Fonction : Auteur
Nguyen Thi Kim Thuy
  • Fonction : Auteur
Fabrice Demeter
Nguyen Thi Mai Huong
  • Fonction : Auteur
Nguyen Anh Tuan
  • Fonction : Auteur
Sam Canh Dung
  • Fonction : Auteur
Truong Huu Nghia
  • Fonction : Auteur
Tran Thi Minh
  • Fonction : Auteur
Pham Thanh Son
  • Fonction : Auteur
Nguyen Thi Kim Thuy
  • Fonction : Auteur

Résumé

Little is known about the ecosystems in the north of the Indochinese peninsula at the Middle-Late Pleistocene transition. In this paper, we analyzed the new fauna from Coc Muoi cave, Lang Son province , northeast Vietnam. In comparison with other well-documented faunas from the region, that of Coc Muoi is distinguished by the predominance of rhinoceroses among diverse large-bodied herbivores. The results of the OSL and pIR-IRSL dating of the cave sediments and U-series dating of flowstones indicate a potential age range of 148-117 ka for the fauna (MIS6-5). The analysis of age-at-death distributions of rhinoceroses, wild cattle, sambar deer, and wild pig, does not show any apparent selectivity of age classes. We also focused our study on rhinoceroses, tapirs, and wild cattle by analyzing the prevalence of hypoplastic defects on deciduous and permanent teeth, in an attempt to assess the health status of the taxa during their first years of growth. The health status of large-bodied herbivores (kouprey and rhinoceros) reveals the importance of stressors (biotic and abiotic) in the rainforest environment during a period of marked climatic transition (MIS6-5) in comparison with other MIS5-4 well-documented faunas from the region.
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Dates et versions

hal-01922908 , version 1 (14-11-2018)

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Anne-Marie Bacon, Pierre-Olivier Antoine, Nguyen Thi Huong, Kira Westaway, Nguyen Anh Tuan, et al.. A rhinocerotid-dominated megafauna at the MIS6-5 transition: The late Middle Pleistocene Coc Muoi assemblage, Lang Son province, Vietnam. Quaternary Science Reviews, 2018, 186, pp.123 - 141. ⟨10.1016/j.quascirev.2018.02.017⟩. ⟨hal-01922908⟩
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