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Silicified Polybessurus from the Ediacaran Doushantuo Formation records microbial activities within marine sediments
Ouyang, Qing(欧阳晴)1,2; Zhou, Chuan-Ming(周传明)1,2,3; Pang, Ke (庞科)1,2,3; Chen, Zhe (陈哲)1,2,3
2022-03-01
Source PublicationPALAEOWORLD
ISSN1871-174X
Volume31Issue:1Pages:1-13
Abstract

Polybessurus, as a common element of the late Mesoproterozoic to early Neoproterozoic microfossil assemblages, has yet no confirmed record from post-Cryogenian strata. In this study, we report Polybessurus sp. from the Ediacaran Doushantuo Formation chert nodules in western Hubei Province, South China. Polybessurus specimens from the Doushantuo Formation are identical to their preCryogenian counterparts in morphology (stacked concave lamellae), composition (organic matter), and preservational mode (silicification). The Doushantuo specimens generally have large tubes (average diameter -157 lm, maximum diameter -450 lm), and are often preserved separately and parallel to the bedding plane, whereas the pre-Cryogenian specimens have relatively small tubes (mostly thinner than 100 lm in diameter), and are often preserved gregariously and perpendicular to the bedding plane. Polybessurus may be formed by a variety of benthic micro-organisms, mainly cyanobacteria, e.g., stalk forming taxa like Cyanostylon and endolithic taxa like Solentia, that are capable of secreting EPS (extracellular polymeric substance) unidirectionally to push itself forward in the sediment. The producers of Polybessurus may have played a role in the benthic microbial community by making microburrows, affecting textures and microenvironments of inshore sediments. As the first unambiguous record of Polybessurus from Ediacaran strata, our new findings extend its distribution from the late Mesoproterozoic-early Neoproterozoic to the late Neoproterozoic. (c) 2021 Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. All rights reserved.

KeywordNeoproterozoic microbenthos cyanobacterial activity permineralized EPS upper Yangtze Block
DOI10.1016/j.palwor.2021.03.001
Indexed BySCI
Language英语
WOS KeywordLIMESTONE-DOLOMITE SERIES ; SOUTH CHINA ; ACANTHOMORPHIC ACRITARCHS ; DRAKEN CONGLOMERATE ; LESSER HIMALAYA ; WENGAN BIOTA ; TIME-SCALE ; MICROFOSSILS ; PALEOBIOLOGY ; CARBONATES
Funding ProjectNational Key R&D Program of China[2017YFC0603101] ; National Natural Science Foundation of China[41902006] ; National Natural Science Foundation of China[41921002] ; National Natural Science Foundation of China[41972005] ; Strategic Priority Research Program (B) of Chinese Academy of Sciences[XDB26000000] ; Youth Innovation Promotion Association of Chinese Academy of Sciences[2021307]
WOS Research AreaPaleontology
WOS SubjectPaleontology
WOS IDWOS:000750607800001
Funding OrganizationNational Key R&D Program of China ; National Natural Science Foundation of China ; Strategic Priority Research Program (B) of Chinese Academy of Sciences ; Youth Innovation Promotion Association of Chinese Academy of Sciences
PublisherELSEVIER
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/40405
Collection中国科学院南京地质古生物研究所
Corresponding AuthorOuyang, Qing(欧阳晴)
Affiliation1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing 210008, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, 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, Chuan-Ming,Pang, Ke ,et al. Silicified Polybessurus from the Ediacaran Doushantuo Formation records microbial activities within marine sediments[J]. PALAEOWORLD,2022,31(1):1-13.
APA Ouyang, Qing,Zhou, Chuan-Ming,Pang, Ke ,&Chen, Zhe .(2022).Silicified Polybessurus from the Ediacaran Doushantuo Formation records microbial activities within marine sediments.PALAEOWORLD,31(1),1-13.
MLA Ouyang, Qing,et al."Silicified Polybessurus from the Ediacaran Doushantuo Formation records microbial activities within marine sediments".PALAEOWORLD 31.1(2022):1-13.
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