New<i> Pachyportax</i> fossils from the Late Miocene Shuitangba locality, Yunnan, revealing the early Bovini evolution and radiation

doi:10.1016/j.palwor.2025.200996

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	New Pachyportax fossils from the Late Miocene Shuitangba locality, Yunnan, revealing the early Bovini evolution and radiation
	Guo, Ding-Ge 1,2; Abbas, Sayyed Ghyour 3; Jiangzuo, Qi-Gao 1; Li, Chun-Xiao 1,2; Yang, Yan-Wu 4; Cao, Jia-Yong 4; Zou, Bin 5; Wang, Shi-Qi1 ; Ji, Xue-Ping 6
	2026-02-01
发表期刊	PALAEOWORLD
ISSN	1871-174X
卷号	35 期号:1 页码:17
通讯作者	Wang, Shi-Qi(wangshiqi@ivpp.ac.cn) ; Ji, Xue-Ping(jxpchina@foxmail.com)
摘要	As a small-sized Bovini, Pachyportax, originated in the Late Miocene Siwaliks and subsequently dispersed to neighbouring regions in Southeast Asia and the Arabian Peninsula, and eventually reached Yunnan, China. However, no fossil material of this genus had been discovered in China prior to this study. Here we report a new species Pachyportax zhaotongensis n. sp., from an important fossil ape locality, the Shuitangba site in Zhaotong, Yunnan, China, dated at approximately 6.2 Ma. The new species displays the diagnostic characteristics of Pachyportax, such as a robust horn core that extends laterally and backward, with a slightly convex medial side and a flatter lateral side, featuring anterior and posterior keels; the cheek teeth are hypsodont, with moderately developed ribs, folds and basal pillars. It also shows some differences from the known species: the horn core insertion is distant from the orbit and shows no significant torsion, and the anterior and posterior keels on the horn core are less pronounced. These advanced characteristics indicated that Pachyportax zhaotongensis n. sp. represents a late evolutionary stage of Pachyportax. This is also the first report of Pachyportax in China. In addition, based on a phylogenetic analysis, we clarify the relationship of Selenoportax and Pachyportax, and briefly explore the evolution and geographical distribution of the two genera. (c) 2025 Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. All rights are reserved, including those for text and data mining, AI training, and similar technologies.
关键词	Zhaotong Late Miocene Selenoportax Pachyportax Phylogenetic analysis Biogeography
DOI	10.1016/j.palwor.2025.200996
关键词[WOS]	BOVIDAE ; MAMMALIA ; ARTIODACTYLA ; NEOGENE ; PLEISTOCENE ; CALIBRATION ; RUMINANTIA ; SIWALIKS ; IMPACT ; RECORD
收录类别	SCI
语种	英语
资助项目	National Key Research and Development Program of China[2023YFF0804501]###2752 ; National Natural Science Foundation of China[42430207]###3143 ; National Natural Science Foundation of China[42472004]###3250 ; National Natural Science Foundation of China[42402025]###3251 ; National Science Foundation of China[U23A26161]###3618 ; National Science Foundation of China[42072209]###3619
项目资助者	National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Science Foundation of China
WOS研究方向	Paleontology
WOS类目	Paleontology
WOS记录号	WOS:001664235100001
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/311034/25278
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; Ji, Xue-Ping
作者单位	1.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origins, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Univ Sialkot, Sialkot 51040, Punjab, Pakistan 4.Zhaotong Inst Cultural Rel Protect & Archaeol, Zhaotong 657000, Peoples R China 5.Zhaoyang Museum, Zhaotong 657000, Peoples R China 6.Chinese Acad Sci, Kunming Inst Zool, Nat Hist Museum Zool, Kunming 650201, Peoples R China
推荐引用方式 GB/T 7714	Guo, Ding-Ge,Abbas, Sayyed Ghyour,Jiangzuo, Qi-Gao,et al. New Pachyportax fossils from the Late Miocene Shuitangba locality, Yunnan, revealing the early Bovini evolution and radiation[J]. PALAEOWORLD,2026,35(1):17.
APA	Guo, Ding-Ge.,Abbas, Sayyed Ghyour.,Jiangzuo, Qi-Gao.,Li, Chun-Xiao.,Yang, Yan-Wu.,...&Ji, Xue-Ping.(2026).New Pachyportax fossils from the Late Miocene Shuitangba locality, Yunnan, revealing the early Bovini evolution and radiation.PALAEOWORLD,35(1),17.
MLA	Guo, Ding-Ge,et al."New Pachyportax fossils from the Late Miocene Shuitangba locality, Yunnan, revealing the early Bovini evolution and radiation".PALAEOWORLD 35.1(2026):17.