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

doi:10.1016/j.gr.2022.10.012

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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
	Wang, Shi-Qi1,2 ; Sun, Jimin 3,4; Li, Chunxiao 1,2,4; Li, Shi-Jie 1,2,4; Fu, Jiao 1,2,4; Jiangzuo, Qigao 5; Xing, Luda 1,2,4; Yang, Rong 6
	2023
发表期刊	GONDWANA RESEARCH
ISSN	1342-937X
卷号	113 页码:102-115
通讯作者	Wang, Shi-Qi(wangshiqi@ivpp.ac.cn)
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/).
关键词	Dwarf antelope Morphometry Microwear Late Miocene Paleoenvironment
DOI	10.1016/j.gr.2022.10.012
关键词[WOS]	RESOLUTION MAGNETO STRATIGRAPHY ; FORELAND-BASIN EVOLUTION ; TECTONIC UPLIFT ; QAIDAM BASIN ; QILIAN SHAN ; BOVIDAE MAMMALIA ; QINGHAI PROVINCE ; LINXIA BASIN ; U-PB ; GROWTH
收录类别	SCI
语种	英语
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]
项目资助者	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
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000916654900003
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/22299
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.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Key Lab Vertebrate Evolut & Human Origins, Beijing 100044, Peoples R China 2.CAS Ctr Excellence Life & Paleoenvironm, Beijing 100101, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Peking Univ, Sch Earth & Space Sci, Key Lab Orogen Belts & Crustal Evolut, Yiheyuan Rd, Beijing 100871, Peoples R China 6.Hezheng Paleozool Museum, Hezheng 731200, 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.