Articles | Volume 21, issue 11
https://doi.org/10.5194/cp-21-2361-2025
© 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/cp-21-2361-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
21 Nov 2025
Research article |
| 21 Nov 2025
| 21 Nov 2025
Living on the edge: Response of Late Cretaceous rudist bivalves (Hippuritida) to hot and highly seasonal climate in the low-latitude Saiwan site, Oman
Department of Earth Sciences, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
Archaeology, Environmental Changes and Geo-Chemistry, Vrije Universiteit Brussel, Brussels, Belgium
Najat al Fudhaili
Industrial Innovation Academy LLC, Muscat, Oman
Iris Arndt
Institut für Geowissenschaften, Goethe-Universität Frankfurt, Frankfurt, Germany
Philippe Claeys
Archaeology, Environmental Changes and Geo-Chemistry, Vrije Universiteit Brussel, Brussels, Belgium
Pacific Centre for Isotopic and Geochemical Research, Department of Earth, Ocean and Atmospheric Sciences, University of British Columbia, Vancouver, BC, Canada
René Fraaije
Het Nationaal Oertijdmuseum Boxtel, Boxtel, the Netherlands
Steven Goderis
Archaeology, Environmental Changes and Geo-Chemistry, Vrije Universiteit Brussel, Brussels, Belgium
John Jagt
Natuurhistorisch Museum Maastricht, Maastricht, the Netherlands
Matthias López Correa
GeoZentrum Nordbayern, Friedrich-Alexander Universität, Erlangen, Germany
Axel Munnecke
GeoZentrum Nordbayern, Friedrich-Alexander Universität, Erlangen, Germany
Jarosław Stolarski
Institute of Paleobiology, Polish Academy of Science, Warsaw, Poland
Martin Ziegler
Department of Earth Sciences, Utrecht University, Utrecht, the Netherlands
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de Winter, N. J., Goderis, S., Malderen, S. J. M. V., Sinnesael, M., Vansteenberge, S., Snoeck, C., Belza, J., Vanhaecke, F., and Claeys, P.: Subdaily-Scale Chemical Variability in a Torreites Sanchezi Rudist Shell: Implications for Rudist Paleobiology and the Cretaceous Day-Night Cycle, Paleoceanography and Paleoclimatology, 35, e2019PA003723, https://doi.org/10.1029/2019PA003723, 2020a.
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Short summary
To test the tolerance of past shallow marine ecosystems to extreme climates, we collected and compiled stable and clumped isotope data from rudist (Order Hippuritida) bivalves that lived in tropical shallow marine waters in present-day Oman during the Campanian (75 million years ago). Our dataset shows that these animals were able to withstand exceptionally warm temperatures, exceeding 40 °C, during hot summers. Our finding highlights how seasonal climate extremes impact marine biodiversity.
To test the tolerance of past shallow marine ecosystems to extreme climates, we collected and...
