The Internal Anatomy and Water Current System of Cambrian Archaeocyaths of South China

doi:10.3390/life14020167

	The Internal Anatomy and Water Current System of Cambrian Archaeocyaths of South China
	Wang, Jiayue 2; Song, Baopeng 2; Liang, Yue 2; Liang, Kun 1; Zhang, Zhifei 2
刊名	LIFE-BASEL
	2024-02-01
卷号	14 期号:2 页码:15
关键词	archaeocyaths morphology anatomy water current system lower Cambrian
DOI	10.3390/life14020167
通讯作者	Liang, Yue(yue.liang@nwu.edu.cn) ; Zhang, Zhifei(elizf@nwu.edu.cn)
英文摘要	Archaeocyaths are a group of extinct filter feeders that flourished in the early Cambrian period and occupied an important position in the evolution of basal fauna and the early marine ecosystem. However, the detailed morphological and anatomical information of this group are still unclear due to insufficient fossil material and limited experimental analyses. Here, we report exquisitely preserved phosphatized archaeocyathan fossil cups, ca. 515 million years old, from the top of the Shuijingtuo Formation (Series 2, Stage 3) and the Xiannudong Formation (Series 2, Stage 3) of the Yangtze Platform, South China. Detailed observation of their external morphology via scanning electron microscopy (SEM) and micro-computed tomography (Micro-CT) analysis revealed detailed information of their internal structure. They have a typical double-walled cup, with the perforated inner and outer walls concentrically distributed, but the structure between the two walls differs. The inverted cone-shaped cups have radially distributed septa between the walls. Perforated septa connect the two walls. The low and columnar cups have canals between the two walls, forming the network. These pores and cavities constitute an important component of the water current system (pumping and filtering water with a network of canals and chambers) and influence the process of filtration in the cup. In comparison to traditional thin-section analysis, the combination of SEM and Micro-CT analysis on phosphatized archaeocyaths presented in this study further explored the detailed internal structure and finely reconstructed the microscopic overall morphology and anatomy, which provide important information to help us understand the systematic taxonomy, anatomy, and morphology of archaeocyaths during the Cambrian period.
资助项目	National Key Research and Development Program of China ; Shaanxi Key Laboratory of the Early Life and Environments, Northwest University of Xi'an
WOS关键词	PASSIVE FLOW ; FAUNA ; DEMOSPONGES ; DIVERSITY ; ERRATICS ; ISLAND ; REEFS
WOS研究方向	Life Sciences & Biomedicine - Other Topics ; Microbiology
语种	英语
出版者	MDPI
WOS记录号	WOS:001170151800001
资助机构	National Key Research and Development Program of China ; Shaanxi Key Laboratory of the Early Life and Environments, Northwest University of Xi'an
内容类型	期刊论文
源URL	[http://ir.nigpas.ac.cn/handle/332004/43436]
专题	中国科学院南京地质古生物研究所
通讯作者	Liang, Yue; Zhang, Zhifei
作者单位	1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 2.Northwest Univ, Dept Geol, State Key Lab Continental Dynam, Shaanxi Key Lab Early Life & Environm, Xian 710069, Peoples R China
推荐引用方式 GB/T 7714	Wang, Jiayue,Song, Baopeng,Liang, Yue,et al. The Internal Anatomy and Water Current System of Cambrian Archaeocyaths of South China[J]. LIFE-BASEL,2024,14(2):15.
APA	Wang, Jiayue,Song, Baopeng,Liang, Yue,Liang, Kun,&Zhang, Zhifei.(2024).The Internal Anatomy and Water Current System of Cambrian Archaeocyaths of South China.LIFE-BASEL,14(2),15.
MLA	Wang, Jiayue,et al."The Internal Anatomy and Water Current System of Cambrian Archaeocyaths of South China".LIFE-BASEL 14.2(2024):15.