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Tubular microfossils from the Ediacaran Weng' an Biota (Doushantuo Formation, South China) are not early animals
Sun, Wei-Chen (孙玮辰)1,2,3; Yin, Zong-Jun (殷宗军)1,2; Donoghue, Philip4; Liu, Peng-Ju5; Shang, Xiao-Dong5; Zhu, Mao-Yan (朱茂炎)1,2,6
2019-12-01
Source PublicationPALAEOWORLD
ISSN1871-174X
Volume28Issue:4Pages:469-477
Abstract

The early Ediacaran Weng' an Biota (ca. 609 Ma) of the Doushantuo Formation (Guizhou Province, China) encompasses an abundant and exquisitely preserved assemblage of phosphatic microfossils that have provided unique insight into the origin and early evolution of multicellular eukaryotes. However, the affinities of these early organisms are far from certain, including the tubular microfossils Crassitubulus, Quadratitubus, Ramitubulus, and Sinocyclocylcicus. These taxa have been widely accepted as stem-cnidarians or, alternatively, interpreted as filamentous cyanobacteria, or multicellular algae. We use high-resolution X-ray tomographic microscopy to analyse the structure and development of the four taxa. Our data and analysis allow us to conclude that these four taxa were not biomineralized. Crassitubulus, Quadratitubus, and Sinocyclocylcicus, may be grouped on the basis that they exhibit alternating complete and incomplete cross walls, and bipolar growth; which makes them favourably comparable to filamentous cyanobacteria. In contrast, Ramitubulus exhibits only complete cross walls, unipolar growth and dichotomous branching. These features are difficult to reconcile with a cyanobacterial interpretation. They are, instead, more indicative of multicellular algae-like Cambrian Epiphyton. Thus, the Weng'an tubular microfossils constitute a disparate assemblage of cyanobacteria and algae, but none represents early Ediacaran animals. (C) 2019 Elsevier Ireland Ltd Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. Published by Elsevier B.V. All rights reserved.

KeywordEdiacaran Doushantuo Formation Weng'an Biota Tubular microfossils Microtomography
DOI10.1016/j.palwor.2019.04.004
Language英语
WOS KeywordEPIPHYTON ; RENALCIS ; FOSSILS
Funding ProjectStrategic Priority Research Program (B) of the Chinese Academy of Sciences (CAS)[XDB26000000] ; Strategic Priority Research Program (B) of the Chinese Academy of Sciences (CAS)[18000000] ; National Natural Science Foundation of China[41672013] ; National Natural Science Foundation of China[41572016] ; Youth Innovation Promotion Association of the CAS[2017360] ; Royal Society Newton Advanced Fellowship
WOS Research AreaPaleontology
WOS SubjectPaleontology
WOS IDWOS:000499969100005
Funding OrganizationStrategic Priority Research Program (B) of the Chinese Academy of Sciences (CAS) ; National Natural Science Foundation of China ; Youth Innovation Promotion Association of the CAS ; Royal Society Newton Advanced Fellowship
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/29443
Collection中国科学院南京地质古生物研究所
Corresponding AuthorYin, Zong-Jun (殷宗军); Liu, Peng-Ju
Affiliation1.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Jiangsu, Peoples R China
2.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironm, Nanjing 210008, Jiangsu, Peoples R China
3.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
4.Univ Bristol, Sch Earth Sci, Life Sci Bldg, Bristol BS8 1TQ, Avon, England
5.Chinese Acad Geol Sci, Inst Geol, Beijing 100037, Peoples R China
6.Univ Chinese Acad Sci, Coll Earth 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
Sun, Wei-Chen ,Yin, Zong-Jun ,Donoghue, Philip,et al. Tubular microfossils from the Ediacaran Weng' an Biota (Doushantuo Formation, South China) are not early animals[J]. PALAEOWORLD,2019,28(4):469-477.
APA Sun, Wei-Chen ,Yin, Zong-Jun ,Donoghue, Philip,Liu, Peng-Ju,Shang, Xiao-Dong,&Zhu, Mao-Yan .(2019).Tubular microfossils from the Ediacaran Weng' an Biota (Doushantuo Formation, South China) are not early animals.PALAEOWORLD,28(4),469-477.
MLA Sun, Wei-Chen ,et al."Tubular microfossils from the Ediacaran Weng' an Biota (Doushantuo Formation, South China) are not early animals".PALAEOWORLD 28.4(2019):469-477.
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