ArticleGeobiology2020
Free and kerogen-bound biomarkers from late Tonian sedimentary rocks record abundant eukaryotes in mid-Neoproterozoic marine communities.
Article in Geobiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed, 68 citations in OpenAlex.
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- Proterozoic microfossils continue to provide new insights into the rise of complex eukaryotic life.Royal Society open science · 2024Review
- Phylotranscriptomics unveil a Paleoproterozoic-Mesoproterozoic origin and deep relationships of the Viridiplantae.Nature communications · 2023Article
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- Nitrate limitation in early Neoproterozoic oceans delayed the ecological rise of eukaryotes.Science advances · 2023Article
- A case for an active eukaryotic marine biosphere during the Proterozoic era.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Preservation of early Tonian macroalgal fossils from the Dolores Creek Formation, Yukon.Scientific reports · 2022Article
- Strong evidence for a weakly oxygenated ocean-atmosphere system during the Proterozoic.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- A largely invariant marine dissolved organic carbon reservoir across Earth's history.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
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- Geological alteration of Precambrian steroids mimics early animal signatures.Nature ecology & evolution · 2021Article
- The origin of phagocytosis in Earth history.Interface focus · 2020Review
- Niche expansion for phototrophic sulfur bacteria at the Proterozoic-Phanerozoic transition.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- A one-billion-year-old multicellular chlorophyte.Nature ecology & evolution · 2020Article
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Authors and funding
3 authors at 2 institutions in 1 country.
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Abstract
Lipid biomarker assemblages preserved within the bitumen and kerogen phases of sedimentary rocks from the ca. 780-729 Ma Chuar and Visingsö Groups facilitate paleoenvironmental reconstructions and reveal fundamental aspects of emerging mid-Neoproterozoic marine communities. The Chuar and Visingsö Groups were deposited offshore of two distinct paleocontinents (Laurentia and Baltica, respectively) during the Tonian Period, and the rock samples used had not undergone excessive metamorphism. The major polycyclic alkane biomarkers detected in the rock bitumens and kerogen hydropyrolysates consist of tricyclic terpanes, hopanes, methylhopanes, and steranes. Major features of the biomarker assemblages include detectable and significant contribution from eukaryotes, encompassing the first robust occurrences of kerogen-bound regular steranes from Tonian rocks, including 21-norcholestane, 27-norcholestane, cholestane, ergostane, and cryostane, along with a novel unidentified C
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