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New record of organic-walled, morphologically distinct microfossils from the late Paleoproterozoic Changcheng Group in the Yanshan Range, North China
Miao, Lanyun (苗兰云)1,2,3,4; Moczydlowska, Malgorzata4; Zhu, Shixing5; Zhu, Maoyan (朱茂炎)1,2,3
2019-02-01
Source PublicationPRECAMBRIAN RESEARCH
ISSN0301-9268
Volume321Pages:172-198
Abstract

Eukaryotic life has likely existed since the late Paleoproterozoic, yet little is known about its early diversity and phylogenetic relationships. Organic-walled microfossils (OWMs) with conspicuous morphology provide a unique material to investigate the deep evolution of eukaryotic and prokaryotic microbial clades. Here we report a diverse assemblage of OWMs from the lower Changcheng Group (c. 1673-1638 Ma, Changzhougou and Chuanlinggou formations) in the Yanshan Range, North China, which consists of 15 species, including 2 that are newly described. The fossil assemblage is dominated by spheromorphs with less numerous process-bearing vesicles, as are colonial and filamentous forms. Among these, 6 morphologically complex taxa (Dictyosphaera, 2 species of Germinosphaera, Pterospermopsimorpha, Simia, and Valeria) are identified as unambiguous unicellular eukaryotes. Four species (Cucumiforma, Navifusa, Schizofusa and large Leiosphaeridia) with relatively simple morphology but having large size, thick wall, and some showing median-split excystment structures, are of probable eukaryotic affinity. However, various colonial microfossils could be either eukaryotes or prokaryotes. The new record of morphologically disparate OWMs represents one of the earliest occurrences of eukaryotes in both China and the world, and indicates that the eukaryotic life was already well established in the late Paleoproterozoic and was of moderate diversity, similar to that of the Mesoproterozoic.

KeywordOrganic-walled Microfossil Eukaryote Paleoproterozoic Changcheng Group North China
DOI10.1016/j.precamres.2018.11.019
Language英语
WOS KeywordProterozoic Bylot Supergroup ; Mesoproterozoic Ruyang Group ; Pb-pb Age ; Officer Basin ; Gaoyuzhuang Formation ; Vindhyan Supergroup ; Early Evolution ; Neoproterozoic Microfossils ; Biostratigraphic Conundrum ; Changzhougou Formation
Funding ProjectStrategic Priority Research Program (B) of the Chinese Academy of Sciences[XDB18000000] ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Swedish Research Council (Vetenskapsradet, VR)[621-2012-1669]
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000457657500011
Funding OrganizationStrategic Priority Research Program (B) of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; Chinese Academy of Sciences ; Swedish Research Council (Vetenskapsradet, VR)
PublisherELSEVIER SCIENCE BV
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/16035
Collection中国科学院南京地质古生物研究所
其他
Corresponding AuthorMoczydlowska, Malgorzata; Zhu, Maoyan (朱茂炎)
Affiliation1.Chinese Acad Sci, State Key Lab Palaeobiol & Stratig, 39 East Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing Inst Geol & Palaeontol, 39 East Beijing Rd, Nanjing 210008, Jiangsu, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China
4.Uppsala Univ, Dept Earth Sci, Palaeobiol, Villavagen 16, SE-75236 Uppsala, Sweden
5.China Geol Survey, Tianjin Inst Geol & Mineral Resources, Tianjin 300170, Peoples R China
Recommended Citation
GB/T 7714
Miao, Lanyun ,Moczydlowska, Malgorzata,Zhu, Shixing,et al. New record of organic-walled, morphologically distinct microfossils from the late Paleoproterozoic Changcheng Group in the Yanshan Range, North China[J]. PRECAMBRIAN RESEARCH,2019,321:172-198.
APA Miao, Lanyun ,Moczydlowska, Malgorzata,Zhu, Shixing,&Zhu, Maoyan .(2019).New record of organic-walled, morphologically distinct microfossils from the late Paleoproterozoic Changcheng Group in the Yanshan Range, North China.PRECAMBRIAN RESEARCH,321,172-198.
MLA Miao, Lanyun ,et al."New record of organic-walled, morphologically distinct microfossils from the late Paleoproterozoic Changcheng Group in the Yanshan Range, North China".PRECAMBRIAN RESEARCH 321(2019):172-198.
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