The pelvic morphology of Parayunnanolepis (Placodermi, Antiarcha) revealed by tomographic data
文献类型:期刊论文
作者 | ZHU, You-An4; WANG, Ya-Jing3; QU, Qing-Ming2; LU, Jing1,4; ZHU, Min1,4![]() |
刊名 | Vertebrata Palasiatica
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出版日期 | 2023-04-18 |
卷号 | 61期号:2页码:81-89 |
关键词 | 早泥盆世 成对附肢 腹鳍 盾皮鱼 胴甲鱼类 三维重建 |
DOI | 10.19615/j.cnki.2096-9899.221126 |
英文摘要 | The pelvic morphology, and whether the pelvic fin is present or absent in the earliest jawed vertebrates are key in interpreting the origin of vertebrate paired fins. Parayunnanolepis xitunensis, an antiarch placoderm from the Early Devonian of Yunnan, South China, was previously described to possess the earliest evidence of both dermal and endoskeletal pelvic girdles, presumably for the attachment of the pelvic fins. Here, we redescribe the pelvic region of the holotype based on high-resolution computed tomographic data. Instead of having two large plates previously designated as dermal pelvic girdles, Parayunnanolepis possesses three pairs of lateral pelvic plates, and one large oval median pelvic plate. The paired pelvic plates are flat ventral plates, and differ from other dermal pelvic girdles in lacking a dorsal extension. There is no definitive evidence for the presence of an endoskeletal pelvic girdle in Parayunnanolepis, although the possibility cannot be ruled out. A comparison of the dermal pelvic plates in various jawed stem-gnathostomes suggests the presence of both paired and median pelvic plates is shared by different lineages and might be plesiomorphic. The jawed stem-gnathostomes may have recruited the ventral dermal skeleton of the post-thoracic body into different functional units. |
URL标识 | 查看原文 |
资助项目 | Strategic Priority Research Program of Chinese Academy of Sciences[XDB26000000] ; Strategic Priority Research Programs of Chinese Academy of Sciences[XDA19050102] ; Chinese Academy Sciences[E0CQ010103] |
语种 | 英语 |
源URL | [http://119.78.100.205/handle/311034/22346] ![]() |
专题 | 古脊椎动物与古人类研究所_古低等脊椎动物研究室 |
通讯作者 | ZHU, You-An; ZHU, Min |
作者单位 | 1.University of Chinese Academy of Sciences Beijing 100049 2.State Key Laboratory of Cellular Stress Biology, School of Life Sciences, Xiamen University Xiamen 361005 3.School of Earth Sciences and Engineering, Nanjing University Nanjing 210023 4.Key Laboratory of Vertebrate Evolution and Human Origins of Chinese Academy of Sciences, Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences Beijing 100044 |
推荐引用方式 GB/T 7714 | ZHU, You-An,WANG, Ya-Jing,QU, Qing-Ming,et al. The pelvic morphology of Parayunnanolepis (Placodermi, Antiarcha) revealed by tomographic data[J]. Vertebrata Palasiatica,2023,61(2):81-89. |
APA | ZHU, You-An,WANG, Ya-Jing,QU, Qing-Ming,LU, Jing,&ZHU, Min.(2023).The pelvic morphology of Parayunnanolepis (Placodermi, Antiarcha) revealed by tomographic data.Vertebrata Palasiatica,61(2),81-89. |
MLA | ZHU, You-An,et al."The pelvic morphology of Parayunnanolepis (Placodermi, Antiarcha) revealed by tomographic data".Vertebrata Palasiatica 61.2(2023):81-89. |
入库方式: OAI收割
来源:古脊椎动物与古人类研究所
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