中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Development of eodiscinid trilobites

文献类型:期刊论文

作者Dai, Tao1; Zhang, Xingliang2,3,4
刊名BIOLOGICAL REVIEWS
出版日期2024-11-10
页码24
关键词trilobite Cambrian eodiscinids body patterning ontogeny development life cycle
ISSN号1464-7931
DOI10.1111/brv.13159
通讯作者Zhang, Xingliang(xzhang69@nwu.edu.cn)
英文摘要A comprehensive review of a full developmental sequence of eodiscinid trilobites reported in recent decades from Cambrian Series 2 and 3 strata is presented. These mostly articulated specimens exhibit detailed morphologies with preservation of even delicate structures at different growth stages, such as the bacculae, axial pores, spine pores, pygidial marginal spines and line coaptative structures. Their trunk segmentation schedules displayed a consistent developmental mode in segment generation and liberation, that is tagmosis and somitogenesis occurred heterochronously after each moulting event, providing clues regarding the potential developmental strategy in isopygous and even macropygous trilobites. The fact that the rate of segmentation obviously exceeds that of articulation results in a seemingly prolonged process of the formation of thoracic segments, which might explain why eodiscinid trilobites have a fixed and limited number of thoracic segments. In addition, the relationship between enrollment mechanism and trunk segmentation during eodiscinid ontogeny confirms this highly unusual growth pattern among the Trilobita, revealing why these early-diverging trilobites controlled the rate of segment increase and release during their life cycles, and is thus of interest with regard to the evolution of arthropod body patterning.
WOS关键词CAMBRIAN EODISCOID TRILOBITE ; GARDEN-CITY FORMATION ; TRUNK SEGMENTATION ; POSTEMBRYONIC DEVELOPMENT ; DUYUNASPIS-DUYUNENSIS ; ENROLLED TRILOBITES ; LOWER ORDOVICIAN ; SERIES 2 ; ONTOGENY ; MORPHOLOGY
资助项目Natural Science Foundation of China[42072021] ; The 111 Project[D17013] ; Key Scientific and Technological Innovation Team Project in Shaanxi Province
WOS研究方向Life Sciences & Biomedicine - Other Topics
语种英语
WOS记录号WOS:001354186400001
出版者WILEY
资助机构Natural Science Foundation of China ; The 111 Project ; Key Scientific and Technological Innovation Team Project in Shaanxi Province
源URL[http://ir.nigpas.ac.cn/handle/332004/44555]  
专题中国科学院南京地质古生物研究所
通讯作者Zhang, Xingliang
作者单位1.Hanjiang Normal Univ, Coll Chem & Environm Engn, Shiyan 442000, Peoples R China
2.Northwest Univ, State Key Lab Continental Dynam, Taibaibeilu 229, Xian 710069, Peoples R China
3.Northwest Univ, Dept Geol, Shaanxi Key Lab Early Life & Environm, Taibaibeilu 229, Xian 710069, Peoples R China
4.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
推荐引用方式
GB/T 7714
Dai, Tao,Zhang, Xingliang. Development of eodiscinid trilobites[J]. BIOLOGICAL REVIEWS,2024:24.
APA Dai, Tao,&Zhang, Xingliang.(2024).Development of eodiscinid trilobites.BIOLOGICAL REVIEWS,24.
MLA Dai, Tao,et al."Development of eodiscinid trilobites".BIOLOGICAL REVIEWS (2024):24.

入库方式: OAI收割

来源:南京地质古生物研究所

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