Articles | Volume 21, issue 18
https://doi.org/10.5194/bg-21-4119-2024
https://doi.org/10.5194/bg-21-4119-2024
Peer-reviewed comment
 | 
20 Sep 2024
Peer-reviewed comment |  | 20 Sep 2024

Reply to Head's 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)

Gerhard Franz, Vladimir Khomenko, Peter Lyckberg, Vsevolod Chournousenko, and Ulrich Struck

Related authors

The Volyn biota (Ukraine) – indications of 1.5 Gyr old eukaryotes in 3D preservation, a spotlight on the “boring billion”
Gerhard Franz, Vladimir Khomenko, Peter Lyckberg, Vsevolod Chournousenko, Ulrich Struck, Ulrich Gernert, and Jörg Nissen
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Fossilization of Precambrian microfossils in the Volyn pegmatite, Ukraine
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40Ar/39Ar dating of a hydrothermal pegmatitic buddingtonite–muscovite assemblage from Volyn, Ukraine
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Geochronology of granites of the western Korosten AMCG complex (Ukrainian Shield): implications for the emplacement history and origin of miarolitic pegmatites
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Geochemistry and paleogeographic implications of Permo-Triassic metasedimentary cover from the Tauern Window (Eastern Alps)
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Related subject area

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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)
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Ecological evolution in northern Iberia (SW Europe) during the Late Pleistocene through isotopic analysis on ungulate teeth
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Revised manuscript accepted for BG
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Cited articles

Barton, M. D. and Young, S.: Non-pegmatitic deposits of beryllium: Mineralogy, geology, phase equilibria and origin, Rev. Mineral. Geochem., 50, 591–691, 2002. 
Cartigny, P.: Stable isotopes and the origin of diamond, Elements, 1, 79–84, 2005. 
Ciarniello, M., Moroz, L. V., Poch, O., Vinogradoff, V., Beck, P., Rousseau, B., Istiqomah, I., Sultana, R., Raponi, A., Schroeder, S., Kappel, D., Quirico, E., Filacchione, G., Pommerol, A., Mennella, V., and Pilorget, C.: VIS-IR spectroscopy of mixtures of ice, organic matter and opaque minerals in support of minor bodies remote sensing observations, EPSC Abstracts, 13, 1467–1468, 2019. 
Durand, B.: Sedimentary organic matter and kerogen, Definition and qualitative importance of kerogen, in: Kerogen – Insoluble Organic Matter from Sedimentary Rocks, edited by: Durand, B., 13–34, Editions Technip, Paris, 1980. 
Ensikat, H.-J., Mustafa, A., and Weigend, M.: Complex patterns of multiple biomineralization in single-celled plant trichomes of the Loasaceae, Amer. J. Bot., 104, 195–206, 2017. 
Short summary
The Volyn biota (Ukraine), previously assumed to be an extreme case of natural abiotic synthesis of organic matter, is more likely a diverse assemblage of fossils from the deep biosphere. Although contamination by modern organisms cannot completely be ruled out, it is unlikely, considering all aspects, i.e., their mode of occurrence in the deep biosphere, their fossilization and mature state of organic matter, their isotope signature, and their large morphological diversity.
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