Living on the edge: Response of Late Cretaceous rudist bivalves (Hippuritida) to hot and highly seasonal climate in the low-latitude Saiwan site, Oman
Niels J. de Winter,Najat al Fudhaili,Iris Arndt,Philippe Claeys,René Fraaije,Steven Goderis,John Jagt,Matthias López Correa,Axel Munnecke,Jarosław Stolarski,and Martin Ziegler
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
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...