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CP | Articles | Volume 16, issue 3
Clim. Past, 16, 1007–1025, 2020
https://doi.org/10.5194/cp-16-1007-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Clim. Past, 16, 1007–1025, 2020
https://doi.org/10.5194/cp-16-1007-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 09 Jun 2020

Research article | 09 Jun 2020

Can morphological features of coccolithophores serve as a reliable proxy to reconstruct environmental conditions of the past?

Giulia Faucher et al.

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Cited articles

Agnini, C., Muttoni, G., Kent, D. V., and Rio, D.: Eocene biostratigraphy and magnetic stratigraphy from Possagno, Italy: The calcareous nannofossil response to climate variability, Earth Planet. Sc. Lett., 241, 815–830, https://doi.org/10.1016/j.epsl.2005.11.005, 2006. 
Agnini, C., Fornaciari, E., Rio, D., Tateo, F., Backman, J., and Giusberti, L.: Responses of calcareous nannofossil assemblages, mineralogy and geochemistry to the environmental perturbations across the Paleocene/Eocene boundary in the Venetian Pre-Alps, Mar. Micropaleontol., 63, 19–38, https://doi.org/10.1016/j.marmicro.2006.10.002, 2007. 
Aloisi, G.: Covariation of metabolic rates and cell size in coccolithophores, Biogeosciences, 12, 4665–4692, https://doi.org/10.5194/bg-12-4665-2015, 2015. 
Arbuckle, K., Bennett, C. M., and Speed, M. P.: A simple measure of the strength of convergent evolution, Methods Ecol. Evol., 5, 685–693, https://doi.org/10.1111/2041-210X.12195, 2014. 
Bach, L. T., Riebesell, U., and Schulz, K. G.: Distinguishing between the effects of ocean acidification and ocean carbonation in the coccolithophore Emiliania huxleyi, Limnol. Oceanogr., 56, 2040–2050, https://doi.org/10.4319/lo.2011.56.6.2040, 2011. 
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We designed five experiments choosing different coccolithophore species that have been evolutionarily distinct for millions of years. If all species showed the same morphological response to an environmental driver, this could be indicative of a response pattern that is conserved over geological timescales. We found an increase in the percentage of malformed coccoliths under altered CO2, providing evidence that this response could be used as paleo-proxy for episodes of acute CO2 perturbations.
We designed five experiments choosing different coccolithophore species that have been...
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