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Acanthomorphic acritarchs from the Ediacaran Doushantuo Formation at Zhangcunping in South China, with implications for the evolution of early Ediacaran eukaryotes
Ouyang, Qing1,2,3; Zhou, Chuanming (周传明)1,2; Xiao, Shuhai4; Chen, Zhe (陈哲)1,2; Shao, Yefei1,2,5
2019
Source PublicationPRECAMBRIAN RESEARCH
ISSN0301-9268
Volume320Pages:171-192
Abstract

Microfossil assemblages preserved in the Ediacaran Doushantuo Formation phosphorites (i.e., the Weng'an biota) and chert nodules in South China provide key evidence for the diversification of marine eukaryotes in the aftermath of Cryogenian global glaciation. Two biozones (i.e., the lower Tianzhushania spinosa biozone and the upper Hocosphaeridium anozos biozone) have been proposed on the basis of acanthomorphic acritarchs preserved in the Doushantuo Formation chert nodules in the Yangtze Gorges area. Strata containing the Weng'an biota at Weng'an have been correlated either with the upper acritarch biozone based mainly on chemostratigraphic data, or with the lower acritarch biozone according to the occurrence of Tianzhushania spinosa in both assemblages. These alternative correlations need to be resolved in order to improve our understanding of the evolutionary pattern of microscopic eukaryotes after the Marinoan glaciation. To address this problem, we carried out an integrated litho-, bio-, and chemostratigraphic study of the Doushantuo Formation in the Zhangcunping area, where the microfossil assemblage resembles the Weng'an biota at Weng'an in both taxonomic composition and biostratigraphic ranges. Our study supports the litho-and chemostratigraphic correlation of the Doushantuo Formation between the Zhangcunping and Yangtze Gorges areas. Thus, the Doushantuo Formation at Zhangcunping provides a link between the Weng'an and Yangtze Gorges areas. Together with published paleontological and stratigraphic data, the present study favors a correlation between the fossiliferous strata at Zhangcunping and the upper part of the T. spinosa biozone recognized in the Yangtze Gorges area. The strata yielding the Weng'an biota at Weng'an can be at least partially correlated with the T. spinosa biozone, supporting the idea that the Weng'an microfossil assemblage is biostratigraphically transitional between the lower and upper acanthomorphic assemblages. This correlation is consistent with the fact that several taxa that used to be regarded characteristic of the H. anozos biozone may actually range downsection into the T. spinosa biozone, thus supporting an earlier diversification of Doushantuo acanthomorphs. These results call for more detailed investigation on the taxonomic composition and biostratigraphic ranges of acanthomorphs in the T. spinosa biozone, and re-consideration of acanthomorphic biozonation of the Doushantuo Formation in the Yangtze Gorges area.

KeywordEdiacaran Biostratigraphy Weng'an Biota Doushantuo Formation Carbon Isotopes Yangtze Gorges Area
DOI10.1016/j.precamres.2018.10.012
Language英语
WOS KeywordYangtze Gorges Area ; Upper Slope Section ; Stratigraphic Correlation ; Chemostratigraphic Data ; Vendian Microfossils ; Integrated Carbon ; Lantian Formation ; Methane Seeps ; Chert Nodules ; Russian Plate
Funding ProjectNational Natural Science Foundation of China[41672027] ; Strategic Priority Research Program (B) of Chinese Academy of Sciences[XDB18000000] ; US National Science Foundation[EAR1528553]
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000456899600010
Funding OrganizationNational Natural Science Foundation of China ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; US National Science Foundation
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/16016
Collection中国科学院南京地质古生物研究所
其他
Corresponding AuthorZhou, Chuanming (周传明)
Affiliation1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, CAS Key Lab Econ Stratig & Palaeogeog, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Life & Palaeoenvironm, Nanjing 210008, Jiangsu, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Virginia Tech, Dept Geosci, Blacksburg, VA 24061 USA
5.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
First Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Corresponding Author AffilicationNanjing Institute of Geology and Palaeonotology,CAS
Recommended Citation
GB/T 7714
Ouyang, Qing,Zhou, Chuanming ,Xiao, Shuhai,et al. Acanthomorphic acritarchs from the Ediacaran Doushantuo Formation at Zhangcunping in South China, with implications for the evolution of early Ediacaran eukaryotes[J]. PRECAMBRIAN RESEARCH,2019,320:171-192.
APA Ouyang, Qing,Zhou, Chuanming ,Xiao, Shuhai,Chen, Zhe ,&Shao, Yefei.(2019).Acanthomorphic acritarchs from the Ediacaran Doushantuo Formation at Zhangcunping in South China, with implications for the evolution of early Ediacaran eukaryotes.PRECAMBRIAN RESEARCH,320,171-192.
MLA Ouyang, Qing,et al."Acanthomorphic acritarchs from the Ediacaran Doushantuo Formation at Zhangcunping in South China, with implications for the evolution of early Ediacaran eukaryotes".PRECAMBRIAN RESEARCH 320(2019):171-192.
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