Biogeosciences
Biogeosciences
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Articles | Volume 21, issue 7
Articles | Volume 21, issue 7
https://doi.org/10.5194/bg-21-1773-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-21-1773-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 21, issue 7
Peer-reviewed comment
 | 
09 Apr 2024
Peer-reviewed comment |  | 09 Apr 2024

Comment on “The Volyn biota (Ukraine) – indications of 1.5 Gyr old eukaryotes in 3D preservation, a spotlight on the `boring billion' ” by Franz et al. (2023)

Martin J. Head, James B. Riding, Jennifer M. K. O'Keefe, Julius Jeiter, and Julia Gravendyck

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Latest update: 09 Jun 2026
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Short summary
A diverse suite of “fossils” associated with the ~1.5 Ga Volyn (Ukraine) kerite was published recently. We show that at least some of them represent modern contamination including plant hairs, pollen, and likely later fungal growth. Comparable diversity is shown to exist in moderm museum dust, calling into question whether any part of the Volyn biota is of biological origin while emphasising the need for scrupulous care in collecting, analysing, and identifying Precambrian microfossils.
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