| New Pachyportax fossils from the Late Miocene Shuitangba locality, Yunnan, revealing the early Bovini evolution and radiation | |
| Guo, DG; Abbas, SG; Jiangzuo, QG; Li, CX; Yang, YW; Cao, JY; Zou, B; Wang, SQ; Ji, XP | |
| 2026 | |
| 发表期刊 | Palaeoworld
 |
| ISSN | 1871-174X |
| 卷号 | 35期号:1 |
| 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. |
| 收录类别 | SCIE |
| 语种 | 英语 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.kiz.ac.cn/handle/152453/15065 |
| 专题 | 管理、支撑部门_动物博物馆 |
| 推荐引用方式 GB/T 7714 | Guo, DG,Abbas, SG,Jiangzuo, QG,et al. New Pachyportax fossils from the Late Miocene Shuitangba locality, Yunnan, revealing the early Bovini evolution and radiation[J]. Palaeoworld,2026,35(1). |
| APA | Guo, DG.,Abbas, SG.,Jiangzuo, QG.,Li, CX.,Yang, YW.,...&Ji, XP.(2026).New Pachyportax fossils from the Late Miocene Shuitangba locality, Yunnan, revealing the early Bovini evolution and radiation.Palaeoworld,35(1). |
| MLA | Guo, DG,et al."New Pachyportax fossils from the Late Miocene Shuitangba locality, Yunnan, revealing the early Bovini evolution and radiation".Palaeoworld 35.1(2026). |
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| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| 2026070710.pdf（5932KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | 请求全文 | |
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