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Electron microscopy reveals evidence for simple multicellularity in the Proterozoic fossil Chuaria
Tang, Qing (唐卿); Pang, Ke (庞科); Yuan, Xunlai (袁训来); Xiao, Shuhai (肖书海)
2017
Source PublicationGeology
ISSN0091-7613
Volume45Issue:1Pages:75–78
AbstractMulticellularity arose multiple times in the evolutionary history of eukaryotes, and simple multicellularity may have a deep history tracing back to the Paleoproterozoic. However, complex multicellular organisms with cellular and tissue differentiation did not appear in the fossil record until the Mesoproterozoic, and it is not until the Ediacaran Period (635-541 Ma) when diverse assemblages of complex multicellular eukaryotes evolved. In the intervening Tonian Period (ca. 1000-720 Ma), the fossil record of multicellular organisms is poorly documented. To address this knowledge gap, we investigated Chuaria and associated carbonaceous compression fossils from the Tonian Liulaobei Formation in North China. These fossils have been variously interpreted as unicellular or multicellular organisms. Our analysis using backscattered-electron scanning electron microscopy (BSE-SEM) revealed direct evidence for simple multicellularity in some of these fossils and suggests that Chuaria may have had a multicellular vegetative stage in its life cycle. This study demonstrates that BSE-SEM has the potential to unveil the hidden diversity of multicellular organisms in the Tonian Period, thus enriching our knowledge about the multiple origins of multicellularity in this critical geological period before Cryogenian glaciations.
DOI10.1130/G38680.1
Indexed BySCI
Language英语
WOS Research AreaGeology
WOS SubjectGeology
WOS IDWOS:000396124000021
PublisherGEOLOGICAL SOC AMER, INC
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/12793
Collection中国科学院南京地质古生物研究所
其他
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GB/T 7714
Tang, Qing ,Pang, Ke ,Yuan, Xunlai ,et al. Electron microscopy reveals evidence for simple multicellularity in the Proterozoic fossil Chuaria[J]. Geology,2017,45(1):75–78.
APA Tang, Qing ,Pang, Ke ,Yuan, Xunlai ,&Xiao, Shuhai .(2017).Electron microscopy reveals evidence for simple multicellularity in the Proterozoic fossil Chuaria.Geology,45(1),75–78.
MLA Tang, Qing ,et al."Electron microscopy reveals evidence for simple multicellularity in the Proterozoic fossil Chuaria".Geology 45.1(2017):75–78.
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