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古脊椎动物学报

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滇西北香格里拉叶卡地点早更新哺乳动物化石

张立民1,4    常美静1,4    鲁 丹1,4    巩  皓1,4    秦  超1,4    高  峰2   潘高原3   李 钢3    邓 涛1,4   史静耸5   倪喜军1,4     李  强1,4   

  1. (1 中国科学院古脊椎动物与古人类研究所,脊椎动物演化与人类起源重点实验室  北京 100044)
    (2 云南省文物考古研究所  昆明 650118)
    (3 云南省迪庆藏族自治州文物管理所  香格里拉 674400)
    (4 中国科学院大学  北京 100049)
    (5 中国科学院动物研究所  北京 100101)

Early Pleistocene mammals from Yeka locality in Shangri-La, northwestern Yunnan

ZHANG Li-Min1,4    CHANG Mei-Jing1,4      LU Dan1,4    GONG Hao1,4     QIN Chao1,4   GAO Feng2     PAN Gao-Yuan3     LI Gang3     DENG Tao1,4    SHI Jing-Song5   NI Xi-Jun1,4*       LI Qiang1,4*#br#   

  1. (1 Key Laboratory of Vertebrate Evolution and Human Origins, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences  Beijing 100044)
    (2 Yunnan Institute of Cultural Relics and Archaeology  Kunming 650118)
    (3 Yunnan Diqing Tibetan Autonomous Prefecture Institute of Cultural Administration  Shangri-La 674400)
    (4 University of Chinese Academy of Sciences  Beijing 100049)
    (5 Institute of Zoology, Chinese Academy of Sciences  Beijing 100101)
    *Corresponding authors: nixijun@ivpp.ac.cn; liqiang@ivpp.ac.cn

摘要:

早更新世叶卡动物群最早发现于20世纪80年代的横断山科学考察中。第二次青藏高原科学考察期间,2020和2024年两次采集到的新的哺乳动物化石标本,经鉴定包含了5目、12科、15属、15种。与中国典型的早更新世哺乳动物群的对比表明,香格里拉地区的化石哺乳动物组合在组成上最接近于元谋人动物群。香格里拉化石哺乳动物组合在动物地理上以南北混合为显著特征,这种模式与横断山现代动物地理格局高度相似。动物组成分析结果反映出早更新世时期,香格里拉地区呈现中等海拔森林和草原镶嵌的环境。

关键词: 香格里拉, 早更新世, 叶卡动物群, 横断山, 古环境

Abstract:

The Early Pleistocene Yeka Fauna was first identified during the Hengduan Mountains Scientific Expedition in the 1980s. New mammal fossil remains were collected during the execution of the Second Tibetan Plateau Scientific Expedition and Research Project (STEP) in 2020 and 2024. The most recent findings have been identified as 5 orders, 12 families, 15 genera, and 15 species. The updated Shangri-La fossil mammal combination (Yeka and Zhongdian faunas) has been compared to several Early Pleistocene faunas in China. It has been found to be most closely correlated to the Yuanmou Man Fauna. The faunal composition of the Shangri-La fossil mammal combination is distinguished by the co-occurrence of boreal and austral elements, a pattern that is analogous to the modern biogeography observed in the Hengduan Mountains. Faunal analysis suggests that during the Early Pleistocene, the Shangri-La region was characterized by a moderate-elevation forest intermingled with open grassland.

Key words: Shangri-La, Early Pleistocene, Yeka Fauna, Hengduan Mountains, Paleoenvironment