Biogeosciences
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Articles | Volume 22, issue 12
Articles | Volume 22, issue 12
https://doi.org/10.5194/bg-22-3073-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-22-3073-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 22, issue 12
Research article
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01 Jul 2025
Research article | Highlight paper |  | 01 Jul 2025

Phylogeochemistry: exploring evolutionary constraints on belemnite rostrum element composition

Alexander Pohle, Kevin Stevens, René Hoffmann, and Adrian Immenhauser

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The manuscript by Pohle and Co-Workers describes an innovative approach for reconstructing patterns of geochemical data across evolutionary trees of life. The authors combine geochemical information with phylogenetic methods in a way that is new, provocative, and has the potential to open up a new sub-field concerning similar types of analyses on other groups of carbonate-producing organisms.
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Short summary
Belemnite rostrum geochemistry is used as a proxy in palaeoceanography. Evolutionary patterns in element ratios (Mg/Ca, Sr/Ca, Mn/Ca, and Fe/Ca) from belemnite rostra based on a literature dataset are assessed. These proxy data reflect a complex interplay between evolutionary, ontogenetic, environmental, kinetic, and diagenetic effects. We coin the new term “phylogeochemistry” for this interdisciplinary research field.
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