The first report of epipunctae in non-plaesiomyid brachiopods from the lowest Silurian of southeastern China | |
Huang, Bing(黄冰)1; Jin, Jisuo2 | |
刊名 | PALAEOWORLD |
2021-12-01 | |
卷号 | 30期号:4页码:643-648 |
关键词 | epipunctae Plaesiomys Cathaysiorthis preservation |
ISSN号 | 1871-174X |
DOI | 10.1016/j.palwor.2020.11.002 |
英文摘要 | Epipunctae are microscopic perforations that do not penetrate the shell but are confined to the outer layers of the shell. They have been known previously only in the orthidine family Plaesiomyidae. The striated walls of epipunctae are considered unique to brachiopods and thus of significance for the study of stem-group brachiopod. In this study, we report the first occurrence of epipunctae in a nonplaesiomyid brachiopod based on a well-preserved external mould of Cathaysiorthis yushanensis from the lower Silurian Shiyang Formation of Jiangxi, southeastern China. The species belongs to the Family Cathaysiorthidae which differs from the Family Plaesiomyidae in many aspects especially in dorsal internal structures. The new data imply that epipunctae may be more widespread in orthide brachiopods than previously thought, strengthening the notion that this is a plesiomorphic character of the brachiopod shell. The discovery of epipunctae, however, depends on excellent preservation of the outer surface of the shells as well as careful cleaning and observation. (c) 2020 Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. All rights reserved. |
资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDB26000000] |
WOS关键词 | STEM GROUP BRACHIOPOD ; ANTICOSTI ISLAND ; ORDOVICIAN ; SHELLS ; FAUNA |
WOS研究方向 | Paleontology |
语种 | 英语 |
出版者 | ELSEVIER |
WOS记录号 | WOS:000712265800005 |
资助机构 | Strategic Priority Research Program of the Chinese Academy of Sciences |
内容类型 | 期刊论文 |
源URL | [http://ir.nigpas.ac.cn/handle/332004/40106] |
专题 | 中国科学院南京地质古生物研究所 |
通讯作者 | Huang, Bing(黄冰) |
作者单位 | 1.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, 39 East Beijing Rd, Nanjing 210008, Peoples R China 2.Univ Western Ontario, Dept Earth Sci, London, ON N6A 5B7, Canada |
推荐引用方式 GB/T 7714 | Huang, Bing,Jin, Jisuo. The first report of epipunctae in non-plaesiomyid brachiopods from the lowest Silurian of southeastern China[J]. PALAEOWORLD,2021,30(4):643-648. |
APA | Huang, Bing,&Jin, Jisuo.(2021).The first report of epipunctae in non-plaesiomyid brachiopods from the lowest Silurian of southeastern China.PALAEOWORLD,30(4),643-648. |
MLA | Huang, Bing,et al."The first report of epipunctae in non-plaesiomyid brachiopods from the lowest Silurian of southeastern China".PALAEOWORLD 30.4(2021):643-648. |
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