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Discovery of a fossil dwarf antelope outside of Africa and its implications for the late Miocene ecosystem in the northeast margin of the Tibetan Plateau

文献类型：期刊论文

作者Wang, Shi-Qi5,6; Sun, Jimin3,4; Li, Chunxiao3,5,6; Li, Shi-Jie3,5,6; Fu, Jiao3,5,6; Jiangzuo, Qigao2; Xing, Luda3,5,6; Yang, Rong1
刊名GONDWANA RESEARCH
出版日期2023
卷号113页码:102-115
ISSN号1342-937X
关键词Dwarf antelope Morphometry Microwear Late Miocene Paleoenvironment
DOI10.1016/j.gr.2022.10.012
通讯作者Wang, Shi-Qi(wangshiqi@ivpp.ac.cn)
英文摘要As a typical dwarf antelope, the extant Nesotragus is confined to shrub areas of open woodlands and for-ests in Eastern and Central Africa. Molecular phylogenetic reconstructions reveal that Nesotragus, along with Aepyceros (impala), represents the earliest crown group of Antilopinae. However, to our knowledge, fossils in relation to Nesotragus have to date not been found. Here, we report the recent discovery of a fossil dwarf antelope, Linxiatragus dengi gen. et sp. nov., from the early Late Miocene (10-9 Ma) of the Linxia Basin, adjoining the NE Tibetan Plateau. This is the first report of a fossil dwarf antelope outside of Africa and prior to Pliocene. Phylogenetic reconstructions confirm that L. dengi belongs to the clade of extant Nesotragus. Morphometric studies further suggest that the cranial morphology of Linxiatragus is intermediate between the extant Nesotragus and Gazella. A microwear study indicates that unlike extant Nesotragus, L. dengi was possibly a grazer rather than a browser, revealing that extant Nesotragus are secondarily small, an adaptation to a concealing habitat. l. dengi, as well as some other taxa (e.g., Diceros gansuensis) occurring in the NE margin of the Tibetan Plateau in the early Late Miocene, sug-gests a relatively arid and open regional paleoenvironmental condition, which mimicked the African Savannah woodlands ecosystem. This ecological implication is consistent with the relatively open lands in the Linxia Basin prior to the tectonic uplift of the NE Tibetan Plateau, as indicated by geological evi-dence. These findings might provide a new interpretation for the origin and migration of modern Sub-Saharan African Savannah mammalian assemblage through the land-bridge connecting Arabia and Asia after their hard-collision.(c) 2022 The Authors. Published by Elsevier B.V. on behalf of International Association for Gondwana Research. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/ licenses/by-nc-nd/4.0/).
WOS关键词RESOLUTION MAGNETO STRATIGRAPHY ; FORELAND-BASIN EVOLUTION ; TECTONIC UPLIFT ; QAIDAM BASIN ; QILIAN SHAN ; BOVIDAE MAMMALIA ; QINGHAI PROVINCE ; LINXIA BASIN ; U-PB ; GROWTH
资助项目Chinese Academy of Sciences[XDB26000000] ; Chinese Academy of Sciences[XDA20070203] ; Chinese Academy of Sciences[XDA20070301] ; National Natural Science Foundation of China, China[41872001] ; Special Research Program of Basic Science and Technology of the Ministry of Science and Technology[QYZDY-SSW-DQC022] ; [DD20190009]
WOS研究方向Geology
语种英语
出版者ELSEVIER
WOS记录号WOS:000916654900003
资助机构Chinese Academy of Sciences ; National Natural Science Foundation of China, China ; Special Research Program of Basic Science and Technology of the Ministry of Science and Technology
源URL[http://119.78.100.205/handle/311034/22298]  
专题中国科学院古脊椎动物与古人类研究所
通讯作者Wang, Shi-Qi
作者单位1.Hezheng Paleozool Museum, Hezheng 731200, Peoples R China
2.Peking Univ, Sch Earth & Space Sci, Key Lab Orogen Belts & Crustal Evolut, Yiheyuan Rd, Beijing 100871, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
5.CAS Ctr Excellence Life & Paleoenvironm, Beijing 100101, Peoples R China
6.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Shi-Qi,Sun, Jimin,Li, Chunxiao,et al. Discovery of a fossil dwarf antelope outside of Africa and its implications for the late Miocene ecosystem in the northeast margin of the Tibetan Plateau[J]. GONDWANA RESEARCH,2023,113:102-115.
APA Wang, Shi-Qi.,Sun, Jimin.,Li, Chunxiao.,Li, Shi-Jie.,Fu, Jiao.,...&Yang, Rong.(2023).Discovery of a fossil dwarf antelope outside of Africa and its implications for the late Miocene ecosystem in the northeast margin of the Tibetan Plateau.GONDWANA RESEARCH,113,102-115.
MLA Wang, Shi-Qi,et al."Discovery of a fossil dwarf antelope outside of Africa and its implications for the late Miocene ecosystem in the northeast margin of the Tibetan Plateau".GONDWANA RESEARCH 113(2023):102-115.

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