Brachial supporting structure of Spiriferida (Brachiopoda)
文献类型：期刊论文
| 作者 | Yuan, Zhiwei5; Guo, Wen3,4; Lyu, Dan1,2; Sun, Yuanlin5; Guo, Wen（郭文）
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| 刊名 | JOURNAL OF PALEONTOLOGY
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| 出版日期 | 2021-05-01 |
| 卷号 | 95期号:3页码:553-567 |
| ISSN号 | 0022-3360 |
| DOI | 10.1017/jpa.2020.106 |
| 通讯作者 | Sun, Yuanlin(ylsun@pku.edu.cn) |
| 英文摘要 | The filter-feeding organ of some extinct brachiopods is supported by a skeletal apparatus called the brachidium. Although relatively well studied in Atrypida and Athyridida, the brachidial morphology is usually neglected in Spiriferida. To investigate the variations of brachidial morphology in Spiriferida, 65 species belonging to eight superfamilies were analyzed. Based on the presence/absence of the jugal processes and normal/modified primary lamellae of the spiralia, four types of brachidium are recognized. Type-I (with jugal processes) and Type-II (without jugal processes), both having normal primary lamellae, could give rise to each other by losing/re-evolving the jugal processes. Type-III, without jugal processes, originated from Type-II through evolution of the modified lateral-convex primary lamellae, and it subsequently gave rise to Type-IV by evolving the modified medial-convex primary lamellae. The evolution of brachidia within individual evolutionary lineages must be clarified because two or more types can be present within a single family. Type-III and Type-IV are closely associated with the prolongation of the crura, representing innovative modifications of the feeding apparatus in response to possible shift in the position of the mouth towards the anterior, allowing for more efficient feeding on particles entering the mantle cavity from the anterior gape. Meanwhile, the modified primary lamellae adjusted/regulated the feeding currents. The absence of spires in some taxa with Type-IV brachidium might suggest that they developed a similar lophophore to that in some extant brachiopods, which can extend out of the shell. |
| WOS关键词 | LATE ORDOVICIAN ; MISSISSIPPIAN BRACHIOPODS ; EVOLUTION ; LOPHOPHORE ; MORPHOLOGY ; GENERA ; CHINA ; GENUS |
| 资助项目 | National Natural Science Foundation of China (NSFC)[41772015] |
| WOS研究方向 | Paleontology |
| 语种 | 英语 |
| WOS记录号 | WOS:000641079200006 |
| 出版者 | CAMBRIDGE UNIV PRESS |
| 资助机构 | National Natural Science Foundation of China (NSFC) |
| 源URL | [http://ir.nigpas.ac.cn/handle/332004/38129]  |
| 专题 | 中国科学院南京地质古生物研究所 |
| 通讯作者 | Sun, Yuanlin |
| 作者单位 | 1.China Natl Petr Corp, Key Lab Oil & Gas Reservoir, Beijing 100083, Peoples R China 2.PetroChina, Res Inst Petr Explorat & Dev, Beijing 100083, Peoples R China 3.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, 39 East Beijing Rd, Nanjing 210008, Peoples R China 4.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, 39 East Beijing Rd, Nanjing 210008, Peoples R China 5.Peking Univ, Sch Earth & Space Sci, Key Lab Orogen Belts & Crustal Evolut, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan, Zhiwei,Guo, Wen,Lyu, Dan,et al. Brachial supporting structure of Spiriferida (Brachiopoda)[J]. JOURNAL OF PALEONTOLOGY,2021,95(3):553-567. |
| APA | Yuan, Zhiwei,Guo, Wen,Lyu, Dan,Sun, Yuanlin,&Guo, Wen.(2021).Brachial supporting structure of Spiriferida (Brachiopoda).JOURNAL OF PALEONTOLOGY,95(3),553-567. |
| MLA | Yuan, Zhiwei,et al."Brachial supporting structure of Spiriferida (Brachiopoda)".JOURNAL OF PALEONTOLOGY 95.3(2021):553-567. |
入库方式： OAI收割
来源：南京地质古生物研究所
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