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Comparative taphonomy and phylogenetic signal of phosphatized Weng'an and Kuanchuanpu Biotas
Bottjer, David J.1; Yin, Zongjun2,3; Zhao, Fangchen2,3; Zhu, Maoyan2,3,4
2020-10-01
Source PublicationPRECAMBRIAN RESEARCH
ISSN0301-9268
Volume349Pages:10
Abstract

The Ediacaran-Cambrian is a time with globally enhanced production of phosphorites. This includes perhaps the two most famous deposits with variable cell and soft tissue phosphatization in microfossils, the Ediacaran Doushantuo Formation, which contains the Weng'an Biota, and the lower Cambrian Kuanchuanpu Formation and equivalents, found in China. A wide range of variables is responsible for phosphatization during this interval, including depositional and geochemical conditions and microbial activity. Degree of microfossil phosphatization is widely dependant upon original cell and tissue types. Microfossils with non-diagenetic morphologies that are iconic for modern crown group metazoans have had the highest level of acceptance for their interpreted phylogenetic affinity. Microfossils with these iconic morphologies are rare from the Weng'an Biota, but relatively common from the Kuanchuanpu Biota. Thus metazoan affinity for Doushantuo microfossils has commonly relied on relatively simple and less-well-known morphologic features of embryonic organisms, for which there is not a concensus on the nature of their phylogenetic signal. Differences in the phosphatized microfossil record between the Weng'an and Kuanchuanpu Biotas are due to the combination of a primary signal reflecting the initiation of the Cambrian explosion, and a secondary signal driven by a multitude of taphonomic processes operating at different levels of effectiveness during deposition of these two units.

KeywordPhosphatization Fossil embryo Cambrian explosion Ediacaran Weng'an Biota Kuanchuanpu Biota
DOI10.1016/j.precamres.2019.105408
Indexed BySCI
Language英语
WOS KeywordEMBRYO-LIKE FOSSILS ; DOUSHANTUO FORMATION ; ANIMAL EMBRYOS ; EDIACARAN ; PRESERVATION ; SHAANXI ; CHINA ; SPONGES ; BIOLOGY
Funding ProjectU.S. National Science Foundation[EAR-1338329] ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences (CAS)[XDB 26000000] ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences (CAS)[18000000] ; National Natural Science Foundation of China[41672013] ; Youth Innovation Promotion Association of the CAS[2017360]
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000589422300005
Funding OrganizationU.S. National Science Foundation ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the CAS
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/37592
Collection中国科学院南京地质古生物研究所
Corresponding AuthorBottjer, David J.
Affiliation1.Univ Southern Calif, Dept Earth Sci, Los Angeles, CA 90089 USA
2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
3.Chinese Acad Sci, Ctr Excellence Life & Palaeoenvironm, Nanjing 210008, Peoples R China
4.Univ Chinese Acad Sci, Dept Earth & Planetary Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Bottjer, David J.,Yin, Zongjun,Zhao, Fangchen,et al. Comparative taphonomy and phylogenetic signal of phosphatized Weng'an and Kuanchuanpu Biotas[J]. PRECAMBRIAN RESEARCH,2020,349:10.
APA Bottjer, David J.,Yin, Zongjun,Zhao, Fangchen,&Zhu, Maoyan.(2020).Comparative taphonomy and phylogenetic signal of phosphatized Weng'an and Kuanchuanpu Biotas.PRECAMBRIAN RESEARCH,349,10.
MLA Bottjer, David J.,et al."Comparative taphonomy and phylogenetic signal of phosphatized Weng'an and Kuanchuanpu Biotas".PRECAMBRIAN RESEARCH 349(2020):10.
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