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Organic biomorphs may be better preserved than microorganisms in early Earth sediments

Abstract:

The Precambrian rock record contains numerous examples of microscopic organic filaments and spheres, commonly interpreted as fossil microorganisms. Microfossils are among the oldest traces of life on Earth, making their correct identification crucial to our understanding of early evolution. Yet, spherical and filamentous microscopic objects composed of organic carbon and sulfur can form in the abiogenic reaction of sulfide with organic compounds. Termed organic biomorphs, these objects form u...

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Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1130/G48152.1

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Institution:
University of Oxford
Division:
MPLS
Department:
Earth Sciences
Role:
Author
Publisher:
Geological Society of America
Journal:
Geology More from this journal
Volume:
49
Issue:
6
Pages:
629-634
Publication date:
2021-01-28
Acceptance date:
2020-11-23
DOI:
EISSN:
1943-2682
ISSN:
0091-7613
Language:
English
Keywords:
Pubs id:
1184505
Local pid:
pubs:1184505
Deposit date:
2021-09-27

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