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Late Ediacaran cavi...
Late Ediacaran cavity-dwelling filamentous microorganisms accommodated in a valve-like organism from the uppermost Dengying Formation in eastern Yunnan of South China
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Fang, Ruisen (författare)
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- Liang, Yue (författare)
- Uppsala universitet,Paleobiologi
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Chen, Yanlong (författare)
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Liu, Fan (författare)
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Hua, Hong (författare)
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- Holmer, Lars E., 1960- (författare)
- Uppsala universitet,Paleobiologi
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Zhang, Zhifei (författare)
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(creator_code:org_t)
- Elsevier, 2022
- 2022
- Engelska.
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Ingår i: Precambrian Research. - : Elsevier. - 0301-9268 .- 1872-7433. ; 379
- Relaterad länk:
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https://doi.org/10.1...
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https://www.scienced...
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https://uu.diva-port... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The EdiacaranâCambrian transition, one of the major turning points in Earthâs history, is characterized by an epoch-making change in biosphere. In South China, the late Ediacaran Dengying Formation (ca. 551â538Â Ma) is an important stratigraphic unit yielding trace fossils, tubular skeletal fossils and some complex forms that represent possible bilateral animals. The fossil-bearing Ediacaran strata of eastern Yunnan is hitherto known from the Jiucheng Member containing the Jiangchuan Biota, together with the enigmatic cosmopolitan taxon Shaanxilithes. Here, we present for the first time cavity-dwelling filamentous microorganisms accommodated within a valve-like fossil from the upper Baiyanshao Member of the Dengying Formation at the Sujiawa Section in Huize County, eastern Yunnan of China. SEM scanning and Micro-CT reconstruction indicate that the well-preserved filaments were characterized by mycelial network structures with abundant branching pattern. Preservation of filamentous microorganisms might result from the decay process of soft parts that were originally accommodated and enclosed within the valve-like organism, and subsequently preserved by early diagenetic phosphatization, which obscures their original organic identity and chemical composition. This paper potentially presents the first fossil evidence of a saprophytic relationship between microorganisms as decomposers and a valve-like organism prior to the eve of the Cambrian Explosion of metazoan animals.
Ämnesord
- HUMANIORA -- Historia och arkeologi -- Arkeologi (hsv//swe)
- HUMANITIES -- History and Archaeology -- Archaeology (hsv//eng)
Nyckelord
- Ediacaran
- Uppermost Dengying Formation
- Eastern Yunnan
- Cavity-dwelling filamentous microorganisms
- Saprophytic relationship
- Earth Science with specialization in Historical Geology and Palaeontology
- Geovetenskap med inriktning mot historisk geologi och paleontologi
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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