Articles | Volume 22, issue 4
https://doi.org/10.5194/bg-22-1095-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-22-1095-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
28 Feb 2025
Research article |
| 28 Feb 2025
| 28 Feb 2025
Exploring macroevolutionary links in multi-species planktonic foraminiferal Mg∕Ca and δ18O from 15 Ma to recent
Flavia Boscolo-Galazzo
CORRESPONDING AUTHOR
Bremen University, MARUM, Center for Marine Environmental Sciences, Bremen, Germany
David Evans
School of Ocean and Earth Science, University of Southampton, Southampton, UK
Elaine M. Mawbey
Department of Earth Sciences, University College London, London, UK
William R. Gray
Laboratoire des Sciences du Climat et de l'Environnement (LSCE/IPSL), Université Paris-Saclay, Gif-sur-Yvette, France
Paul N. Pearson
Department of Earth Sciences, University College London, London, UK
School of Earth and Environmental Sciences, Cardiff University, Cardiff, UK
Bridget S. Wade
Department of Earth Sciences, University College London, London, UK
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Short summary
Here we compare the Mg / Ca and oxygen isotope signatures for 57 recent to fossil species of planktonic foraminifera for the last 15 Myr. We find the occurrence of lineage-specific offsets in Mg / Ca conservative between ancestor-descendent species. Taking into account species kinship significantly improves temperature reconstructions, and we suggest that the occurrence of Mg / Ca offsets in modern species results from their evolution when ocean properties were different from today's.
Here we compare the Mg / Ca and oxygen isotope signatures for 57 recent to fossil species of...
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