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Abstract

Summary

The role of an expanding Paleozoic terrestrial biosphere, fueled by the radiation of early land plants, may have significantly influenced ocean chemistry and biology by altering the global biogeochemical cycling of redox-sensitive elements and essential nutrients. Our detailed lipid biomarker records, used in conjunction with inorganic redox proxies and biostratigraphy, are helping to constrain how the composition of paleotropical marine communities evolved through the Ordovician-Silurian-Devonian transition. Sterane records strongly suggest that 24-n-propylcholestane (24-npc), sourced from marine pelagophytes and their algal ancestors, first appeared as a common ancient marine algal signal during the Silurian Period. Our study helps to untangle the cryptic influence of progressive continental greening on perturbing the Paleozoic marine biosphere and driving increasing oxygenation over protracted timescales.

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2025-09-07
2026-02-11

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References

  1. Harrison, J. & Morris, J. (2018) Phil. Trans. R. Soc. B, 373, 20160496.
     [Google Scholar]
  2. Algeo, T. J., Scheckler, S. E., Beerling, D. J., Chaloner, W. G. & Woodward, F. I. (1998) Phil. Trans. R. Soc. B, 353, 113–130.
     [Google Scholar]
  3. Dahl, T.W. & Arens, S. K. M. (2020) Chem. Geol., 547, 119665.
     [Google Scholar]
  4. Mills, B. J. W., Krause, A. J., Jarvis, I., & Cramer, B. D. (2023) Annu. Rev. Earth Planet. Sci., 51, 253–276.
     [Google Scholar]
  5. Stockey, R. G., Cole, D. B., Farrell, U. C. et al., (2024) Nat. Geosci. 17, 667–674.
     [Google Scholar]
  6. Martinez, A. M., Boyer, D. L., Droser, M. L., Barrie, C. & Love, G. D. (2019) Geobiology, 17, 27–42.
     [Google Scholar]
  7. Romero-Sarmiento, M.-F., Riboulleau, A., Vecoli, M. & Versteegh, G. J.-M. (2010) Org. Geochem., 41, 302–306.
     [Google Scholar]
  8. Romero-Sarmiento, M.-F., Riboulleau, A., Vecoli, M. & Versteegh, G. J.-M. (2011) Org. Geochem., 42, 605–617.
     [Google Scholar]
  9. Akinsanpe, O. T., BowdenA. S., & Parnell, J., (2024) Palaeogeogr. Palaeoclimatol. Palaeoecol., 640, 112101.
     [Google Scholar]
  10. Akinsanpe, O. T., Akinsanpe, A. O., Adekola, S. A., Oyetade, O. P., Akande, W. G., Usman, M. B., Bello, A. M., Benjamin, U. K., Olusanya, A. O., & Emele, C., (2025) Org. Geochem., 201, 104948.
     [Google Scholar]
  11. Killops, S. D., Bishop, A. N., Tegelaar, E. W., Urdal, K., Ghammari, M. R. K., & Weijers, J. W. H., (2023) Front. Geochem., 1, 1241784.
     [Google Scholar]
  12. Moldowan, J. M., Fago, F. J., Lee, C. Y., Jacobson, S. R., Watt, D. S., Slougui, N.-E., Jeganathan, A., & Young, D. C. (1990) Science, 247, 309–312.
     [Google Scholar]
  13. Rohrssen, M., Gill, B. C., & Love, G. D., (2015) Org. Geochem., 80, 1–7.
     [Google Scholar]
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