KMS Nanjing Institute of Geology and Palaeonotology,CAS
Anatomy and lifestyles of Early Cambrian priapulid worms exemplified by Corynetis and Anningvermis from the Maotianshan Shale (SW China) | |
Huang, DY (黄迪颖)![]() ![]() | |
2004-03-01 | |
发表期刊 | LETHAIA
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ISSN | 0024-1164 |
卷号 | 37期号:1页码:21-33 |
摘要 | Accurate information on the anatomy and ecology of worms from the Cambrian Lagerstatten of SW China is sparse. The present study of two priapulid worms Anningvermis n. gen. and Corynetis Lou & Hu, 1999 from the Lower Cambrian Maotianshan Shale biota brings new information concerning the anatomical complexity, functional morphology and lifestyles of the Early Cambrian priapulids. Comparisons are made with Recent priapulids from Sweden (live observations, SEM). The cuspidate pharyngeal teeth of Anningvermis (circumoral pentagons) and the most peculiar radiating oral crown of Corynetis added to the very elongate pharynx of these two forms are interpreted as two different types of grasping apparatus possibly involved in the capture of small prey. Corynetis and Anningvermis are two representative examples of the Early Cambrian endobenthic communities largely dominated by priapulid worms (more than ten species in the Maotianshan Shale biota) and to a much lesser extent by brachiopods. Corynetis and Anningvermis were probably active mud-burrowers and predators of small meiobenthic animals. Likewise predator priapulid worms exploited the interface layer between the seawater and bottom sediment, where meiobenthic organisms were abundant and functioned as prey. This implies that complex prey-predator relationship between communities already existed in the Early Cambrian. This study also shows that the circumoral pentagonal teeth and caudal appendage were present in the early stages of the evolutionary history of the group and were important features of the priapulid body plan already in the Early Cambrian. Two new families, one new genus and new species are introduced and described in the appendix. |
关键词 | Anningvermis China Corynetis Early Cambrian Endobenthic Maotianshan Shale Lagerstatte Priapulida Worms |
DOI | 10.1080/00241160410005088 |
语种 | 英语 |
关键词[WOS] | Palaeoscolecid Worms ; Evolution ; Seticoronaria ; Arthropods ; Morphology ; Chordate ; Caudatus ; Fossils |
WOS研究方向 | Paleontology |
WOS类目 | Paleontology |
WOS记录号 | WOS:000221262800002 |
出版者 | TAYLOR & FRANCIS AS |
文献类型 | 期刊论文 |
条目标识符 | http://ir.nigpas.ac.cn/handle/332004/989 |
专题 | 中国科学院南京地质古生物研究所 其他 |
通讯作者 | Huang, DY (黄迪颖) |
作者单位 | 1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China 2.Univ Lyon 1, UFR Sci Terre, UMR PEPS, F-69622 Villeurbanne, France |
推荐引用方式 GB/T 7714 | Huang, DY ,Vannier, J,Chen, JY . Anatomy and lifestyles of Early Cambrian priapulid worms exemplified by Corynetis and Anningvermis from the Maotianshan Shale (SW China)[J]. LETHAIA,2004,37(1):21-33. |
APA | Huang, DY ,Vannier, J,&Chen, JY .(2004).Anatomy and lifestyles of Early Cambrian priapulid worms exemplified by Corynetis and Anningvermis from the Maotianshan Shale (SW China).LETHAIA,37(1),21-33. |
MLA | Huang, DY ,et al."Anatomy and lifestyles of Early Cambrian priapulid worms exemplified by Corynetis and Anningvermis from the Maotianshan Shale (SW China)".LETHAIA 37.1(2004):21-33. |
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