A new dichobunoid artiodactyl from the middle Eocene of Yunnan, China | |
Wang, SQ; Ji, XP; Zhang, CX; Wang, Y; Chen, GY; Hu, ZG; Yang, HF | |
2025 | |
发表期刊 | PALAEOWORLD
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ISSN | 1871-174X |
卷号 | 34期号:2 |
摘要 | Dichobunoids were the most basal artiodactyl group, widely distributed throughout the Eocene of Eurasia and North America, but were rarely reported from southern China. In this paper, we report the first dichobunoid artiodactyl, Shilinhyus chowi n. gen. n. sp., from the middle Eocene of Lunan Basin (Shilin County), China. Shilinhyus is characterized by its relatively large size, bunoselenodont tooth morphology with a highly developed p4 metaconid, and a mesially interrupted paracristid formed by a weak premetacristid and a strong preprotocristid. This morphology distinguishes Shilinhyus from all known dichobunoid artiodactyls. Within dichobunoids, Shilinhyus resembles Pakkokuhyus from the Eocene of Southeast Asia and Gobiohyus yuanchuensis from the Eocene of Shanxi, China, by the relatively large size, the absence of the paraconid, and the well-development of the hypolophid. However, Shilinhyus still differs from Pakkokuhyus and Gobiohyus yuanchuensis in the complete interruption of the paracristid and in the alignment of the entoconid and hypoconid as well as the protoconid and metaconiod. Shilinhyus, Pakkokuhyus, and Gobiohyus yuanchuensis might have derived from the Eocene Gobiohyus from northern China, constituting a distinct group. The discovery of Shilinhyus chowi enhances our understanding of the early evolution of dichobunoid artiodactyls, especially in southern China. (c) 2024 Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. |
收录类别 | SCI |
语种 | 英语 |
文献类型 | 期刊论文 |
条目标识符 | http://ir.kiz.ac.cn/handle/152453/14643 |
专题 | 管理、支撑部门_动物博物馆 |
推荐引用方式 GB/T 7714 | Wang, SQ,Ji, XP,Zhang, CX,et al. A new dichobunoid artiodactyl from the middle Eocene of Yunnan, China[J]. PALAEOWORLD,2025,34(2). |
APA | Wang, SQ.,Ji, XP.,Zhang, CX.,Wang, Y.,Chen, GY.,...&Yang, HF.(2025).A new dichobunoid artiodactyl from the middle Eocene of Yunnan, China.PALAEOWORLD,34(2). |
MLA | Wang, SQ,et al."A new dichobunoid artiodactyl from the middle Eocene of Yunnan, China".PALAEOWORLD 34.2(2025). |
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