KMS Nanjing Institute of Geology and Palaeonotology,CAS
The origin of crustaceans: new evidence from the Early Cambrian of China | |
Chen, JY (陈均远); Vannier, J; Huang, DY (黄迪颖) | |
2001-11-07 | |
发表期刊 | PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES |
ISSN | 0962-8452 |
卷号 | 268期号:1482页码:2181-2187 |
摘要 | One of the smallest arthropods recently discovered in the Early Cambrian Maotianshan Shale Lagerstatte is described. Ercaia gen. nov. has an untagmatized trunk bearing serially repeated biramous appendages (long and segmented endopods and flap-like exopods), a head with an acron bearing stalked lateral eyes and a sclerite and two pairs of antennae. The position of this 520 million-year-old tiny arthropod within the Crustacea is supported by several anatomical features: (i) a head with five pairs of appendages including two pairs of antennae, (ii) highly specialized antennae (large setose fans with a possible function in feeding), and (iii) specialized last trunk appendages (segmented pediform structures fringed with setae). The segmentation pattern of Ercaia (5 head and 13 trunk) is close to that of Maxillopocia but lacks the trunk tagmosis of modern representatives of the group. Ercaia is interpreted as a possible derivative of the stem group Crustacea. Ercaia is likely to have occupied an ecological niche similar to those of some Recent meiobenthic organisms (e.g. copepods living in association with sediment). This new fossil evidence supports the remote ancestry of crustaceans well before the Late Cambrian and shows, along with other fossil data (mainly Early Cambrian in China), that a variety of body plans already coexisted among the primitive crustacean stock. |
关键词 | Arthropoda Crustacea Maxillopoda Early Cambrian Lagerstatte |
语种 | 英语 |
关键词[WOS] | Appendages ; Kunmingella ; Arthropoda ; Bradoriida ; Evolution ; Ostracoda ; Phylogeny ; Sweden |
WOS研究方向 | Life Sciences & Biomedicine - Other Topics ; Environmental Sciences & Ecology ; Evolutionary Biology |
WOS类目 | Biology ; Ecology ; Evolutionary Biology |
WOS记录号 | WOS:000172101600001 |
出版者 | ROYAL SOC |
文献类型 | 期刊论文 |
条目标识符 | http://ir.nigpas.ac.cn/handle/332004/819 |
专题 | 中国科学院南京地质古生物研究所 其他 |
通讯作者 | Chen, JY (陈均远) |
作者单位 | 1.Acad Sinica, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China 2.Early Life Res Ctr, Chengjiang 652500, Yunnan, Peoples R China 3.Univ Lyon 1, UFR Sci Terre, UMR PEPS, F-69622 Villeurbanne, France |
推荐引用方式 GB/T 7714 | Chen, JY ,Vannier, J,Huang, DY . The origin of crustaceans: new evidence from the Early Cambrian of China[J]. PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,2001,268(1482):2181-2187. |
APA | Chen, JY ,Vannier, J,&Huang, DY .(2001).The origin of crustaceans: new evidence from the Early Cambrian of China.PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,268(1482),2181-2187. |
MLA | Chen, JY ,et al."The origin of crustaceans: new evidence from the Early Cambrian of China".PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES 268.1482(2001):2181-2187. |
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