Complex hierarchical microstructures of Cambrian mollusk Pelagiella: insight into early biomineralization and evolution

doi:10.1038/s41598-017-02235-9

	Complex hierarchical microstructures of Cambrian mollusk Pelagiella: insight into early biomineralization and evolution
	Li, LY; Zhang, XL; Yun, H; Li, GX (李国祥)
	2017
发表期刊	Scientific Reports
ISSN	2045-2322
卷号	7 页码:文献号：1935 （11页）
摘要	Shell microstructure and mineralogy of Pelagiella madianensis Zhou & Xiao, 1984, a globally distributed Cambrian micromollusk, are investigated based on abundant and extraordinarily wellpreserved specimens from Xinji Formation, Longxian, Shaanxi, North China. Five types of aragonitic microstructures have been recognized. The lamello- fibrillar microstructure, previously known from Pelagiella, constructs the outermost shell layer, while the remaining four types are reported here for the first time in this genus. They include fibrous foliated, foliated aragonite, crossed foliated lamellar and isolated tablets. The animal constructs these five types of microstructures to build its shell in a complex hierarchical pattern with four orders: crystallite columns, laths, folia and lamellae. These findings demonstrate that the capability of building complex shell microstructures had already evolved by the Cambrian explosion. In addition, this work shows that early aragonitic shells were constructed with fibers, laths, folia and isolated tablets, indicating increased controls over biomineralization by the animal.
DOI	10.1038/s41598-017-02235-9
收录类别	SCI
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000401406700010
出版者	NATURE PUBLISHING GROUP
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/13633
专题	中国科学院南京地质古生物研究所其他
通讯作者	Zhang, XL
推荐引用方式 GB/T 7714	Li, LY,Zhang, XL,Yun, H,et al. Complex hierarchical microstructures of Cambrian mollusk Pelagiella: insight into early biomineralization and evolution[J]. Scientific Reports,2017,7:文献号：1935 （11页）.
APA	Li, LY,Zhang, XL,Yun, H,&Li, GX .(2017).Complex hierarchical microstructures of Cambrian mollusk Pelagiella: insight into early biomineralization and evolution.Scientific Reports,7,文献号：1935 （11页）.
MLA	Li, LY,et al."Complex hierarchical microstructures of Cambrian mollusk Pelagiella: insight into early biomineralization and evolution".Scientific Reports 7(2017):文献号：1935 （11页）.