The tempo of Ediacaran evolution
Open accessAbstract
New radio-isotopic data bracket the age of late Ediacaran fossil assemblages and two negative carbon isotope excursions.
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Both the Avalon and White Sea paleocommunities largely disappeared by ~550.5 Ma.
“Both the Avalon and White Sea paleocommunities largely disappeared by ~550.5 Ma (25, 27, 28)”
From Sea level controls on Ediacaran-Cambrian animal radiations (2024) · cites this paper as [28]
The Discussion (‘A refined record of Ediacaran biotic evolution’; page unavailable) places a postulated first extinction pulse of Ediacaran taxa at the White Sea–Nama transition after the ~550 Ma carbon-isotope excursion. That broadly supports a decline around the claimed date, but the paper does not say that both the Avalon and White Sea paleocommunities largely disappeared by ~550.5 Ma; it also presents the extinction as postulated, not established. (LLM, conf=0.82)
Experimental — accuracy not yet measuredThis age model is currently permissible as radiometric data that could constrain global δ13Ccarb are conspicuously absent between approximately 555 and 550 Ma from all carbonate-dominated successions, and major sequence boundaries or erosional surfaces are ubiquitous from <555 Ma to approximately >550.5 Ma in radiometrically dated carbonate-dominated successions.
“This age model is currently permissible as radiometric data that could constrain global δ13Ccarb are conspicuously absent between approximately 555 and 550 Ma from all carbonate-dominated successions, and major sequence boundaries or erosional surfaces are ubiquitous from <555 Ma [e.g., (68)] to approximately >550.5 Ma (28) in radiometrically dated carbonate-dominated successions”
From Sea level controls on Ediacaran-Cambrian animal radiations (2024) · cites this paper as [28]
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Evans, S. D., Tu, C., Rizzo, A., Surprenant, R. L., Boan, P. C., McCandless, H., Marshall, N., Xiao, S., & Droser, M. L. (2022) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.2207475119 · Cited by 90 · see citing works
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Sea level controls on Ediacaran-Cambrian animal radiations
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- Authors
- Yang, C., Rooney, A. D., Condon, D. J., Li, X.-H., Grazhdankin, D. V., Bowyer, F. T., Hu, C., Macdonald, F. A., & Zhu, M.
- Affiliations
- British Geological Survey (GB)
- Yale University (US)
- Chinese Academy of Sciences (CN)
- Novosibirsk State University (RU)
- University of Leeds (GB)
- University of California, Santa Barbara (US)
- Corresponding author
- Yang, Chuan
- Rooney, Alan D.
- Zhu, Maoyan
- ORCID
- Venue
- Science Advances
- Published
- 2021-11-05
- Volume
- 7
- Issue
- 45
- Pages
- eabi9643-eabi9643
- ISSN
- 2375-2548 (ISSN-L)
- PMC
- PMC8565906
- OpenAlex
- W3208430661
- Cited by
- 202
- References
- 20
- Citations by year
- 2026: 38 · 2025: 43 · 2024: 44 · 2023: 48 · 2022: 27 · 2021: 2
- FWCI
- 22.72
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- cc-by-nc
- Locations
- Science Advances (publishedVersion, cc-by-nc)
- PubMed Central (publishedVersion, cc-by-nc)
- PubMed (publishedVersion)
- White Rose Research Online (University of Leeds, The University of Sheffield, University of York) (acceptedVersion)
- NERC Open Research Archive (Natural Environment Research Council) (acceptedVersion)
- eScholarship (California Digital Library) (submittedVersion, cc-by-nc)
- Funders
- National Science Foundation (2021319)
- National Natural Science Foundation of China (41921002, 41802029)
- Chinese Academy of Sciences (26000000, XDB18030300, 2021319)
- Russian Science Foundation (20‐67‐46028)
- Natural Environment Research Council (bgs06001, NE/P013775/1)
- Topics
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Stratigraphy of Fossils
- Physical Sciences › Earth and Planetary Sciences › Geophysics › Geological and Geochemical Analysis
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Evolution and Paleontology Studies
- Keywords
- origin of complex life, carbon isotope excursion, Shuram excursion, carbon cycle perturbation, biostratigraphic correlation, chronostratigraphy
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