Cambrian Fossil Embryos from Western Hunan, South China

doi:10.1111/j.1755-6724.2009.00066.x

	Cambrian Fossil Embryos from Western Hunan, South China
	Dong Xiping 1,2
	2009
发表期刊	ACTA GEOLOGICA SINICA-ENGLISH EDITION
ISSN	1000-9515
卷号	83 期号:3 页码:429-439
摘要	The exquisitely preserved fossil embryos of Markuelia recovered from the limestones of the Middle Cambrian Haoqiao Formation and Upper Cambrian Bitiao formation in western Hunan, South China are described and illustrated in detail for the first time. A new species Markuelia elegans sp. nov. is established based mainly on embryos from the Upper Cambrian. A few of animal's resting eggs, which are comparable with those of the Ediacaran Doushantuo Formation, have been also found in the Upper Cambrian of western Hunan. The membrane of one egg from the uppermost Cambrian has been replaced by pyrite and the overgrowth of the pyrite crystals exhibits a unique inorganic pattern termed herein 'Pseudoembryo'. The taphonomic setting in deeper water with possible strong reducing conditions promoted the excellent preservation for the Markuelia specimens. The study of Markuelia provides not only constraint on the anatomy, affinity, embryonic development and phylogenetic significance of this wormlike animal and but also opens a new window onto the evolution and development of the earliest animals.
关键词	Markuelia fossil embryos resting eggs pseudoembryo taxonomy taphonomy Cambrian Hunan China
DOI	10.1111/j.1755-6724.2009.00066.x
语种	英语
关键词[WOS]	ANIMAL EMBRYOS ; EXPERIMENTAL TAPHONOMY ; SHELLY FOSSILS ; SOFT-TISSUE ; MIDDLE ; PRESERVATION ; MARKUELIA ; RECORD ; EGGS
资助项目	National Natural Science Foundation of China[40772008] ; National Natural Science Foundation of China[40572003] ; Research Fund for Doctoral Program of High Education[20060001059] ; State Key Laboratory of Paleobiology and Stratigraphy ; Nanjing Institute of Geology and Palaeontology ; Chinese Academy of Sciences[083101]
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000266594900001
项目资助者	National Natural Science Foundation of China ; Research Fund for Doctoral Program of High Education ; State Key Laboratory of Paleobiology and Stratigraphy ; Nanjing Institute of Geology and Palaeontology ; Chinese Academy of Sciences
出版者	WILEY-BLACKWELL PUBLISHING, INC
引用统计
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/194
专题	中国科学院南京地质古生物研究所
通讯作者	Dong Xiping
作者单位	1.Peking Univ, Dept Geol, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Paleobiol & Stratig, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Dong Xiping. Cambrian Fossil Embryos from Western Hunan, South China[J]. ACTA GEOLOGICA SINICA-ENGLISH EDITION,2009,83(3):429-439.
APA	Dong Xiping.(2009).Cambrian Fossil Embryos from Western Hunan, South China.ACTA GEOLOGICA SINICA-ENGLISH EDITION,83(3),429-439.
MLA	Dong Xiping."Cambrian Fossil Embryos from Western Hunan, South China".ACTA GEOLOGICA SINICA-ENGLISH EDITION 83.3(2009):429-439.