Intraspecific variation of trunk segmentation in the oryctocephalid trilobite Duyunaspis duyunensis from the Cambrian (Stage 4, Series 2) of South China
Dai, T1,2,3; Zhang, XL1,2,3; Peng, SC (彭善池)4; Yao, XY5
2017-10
发表期刊Lethaia
ISSN0024-1164
卷号50期号:4页码:527-539
摘要

A detailed exploration of growth and trunk segmentation of the oryctocephalid trilobite, Duyunaspis duyunensis Chang & Chien in Zhou et al. 1977, from the lower Cambrian (Stage 4, Series 2) Balang Formation in western Hunan Province, South China, is presented. Because of the excellent preservation, the complete post-protaspid ontogenetic series from merapsid degree 0 to the holaspid phase is described. The ontogenetic series reveals new information on morphological changes such as the migration of the posterior branch of the facial sutures (from proparian to opisthoparian) and contraction of the posteromedial notch in the pygidium. The abundance of articulated specimens available from a narrow stratigraphical interval makes this material singularly useful for studying the morphogenesis and post-embryonic growth of D. duyunensis in comparison with other oryctocephalids. Strong evidence that multiple numbers of pygidial segment are recognized in each meraspid degree as well as in the holaspid period showed unusual intraspecific variability in the rate of trunk segmentation, providing insights into how Cambrian subisopygous trilobites controlled their body patterning, including size, shape and trunk segment number in both thorax and caudal plate during growth.. Cambrian, China, Corynexochida, ontogeny, segmentation, Trilobita.

DOI10.1111/let.12208
收录类别SCI
语种英语
WOS研究方向Paleontology
WOS类目Paleontology
WOS记录号WOS:000410680200007
出版者WILEY
文献类型期刊论文
条目标识符http://ir.nigpas.ac.cn/handle/332004/13304
专题中国科学院南京地质古生物研究所
作者单位1.State Key Lab Continental Dynam, Xian 710069, Shaanxi, Peoples R China;
2.Dept Geol, Shaanxi Key Lab Early Life & Environm, Xian 710069, Shaanxi, Peoples R China;
3.Northwest Univ Xian, Xian 710069, Shaanxi, Peoples R China;
4.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Jiangsu, Peoples R China;
5.Changan Univ, Sch Earth Sci & Land Resources, Key Lab Western Chinas Mineral Resources & Geol E, Minist Educ, Xian 710054, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714
Dai, T,Zhang, XL,Peng, SC ,et al. Intraspecific variation of trunk segmentation in the oryctocephalid trilobite Duyunaspis duyunensis from the Cambrian (Stage 4, Series 2) of South China[J]. Lethaia,2017,50(4):527-539.
APA Dai, T,Zhang, XL,Peng, SC ,&Yao, XY.(2017).Intraspecific variation of trunk segmentation in the oryctocephalid trilobite Duyunaspis duyunensis from the Cambrian (Stage 4, Series 2) of South China.Lethaia,50(4),527-539.
MLA Dai, T,et al."Intraspecific variation of trunk segmentation in the oryctocephalid trilobite Duyunaspis duyunensis from the Cambrian (Stage 4, Series 2) of South China".Lethaia 50.4(2017):527-539.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
Dai_et_al-2017-Letha(5185KB)期刊论文出版稿开放获取CC BY-NC-SA请求全文
个性服务
查看访问统计
谷歌学术
谷歌学术中相似的文章
[Dai, T]的文章
[Zhang, XL]的文章
[Peng, SC (彭善池)]的文章
百度学术
百度学术中相似的文章
[Dai, T]的文章
[Zhang, XL]的文章
[Peng, SC (彭善池)]的文章
必应学术
必应学术中相似的文章
[Dai, T]的文章
[Zhang, XL]的文章
[Peng, SC (彭善池)]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。