Cretaceous climate crisis with extreme heat and ocean anoxia led to the extinction of powerful marine predators.

By studying 140-million-year-old oyster fossils, a joint team of Chinese and international scientists has uncovered clues about Earth’s climate during the Early Cretaceous period, challenging the ...

The sudden heat altered oceans' chemical composition, which affected some top aquatic reptilian predators more than some ...

The researchers found that during the Early Cretaceous, winter ocean temperatures ... temperature differences in that region today. Climate simulations further suggested that seasonal glacial ...

The highest trophic niches in Mesozoic oceans were filled by diverse marine reptiles, including ichthyosaurians, plesiosaurians, and thalattosuchians, dominating food webs during the Jurassic and ...

Climate modeling and clumped isotopes both revealed that winter temperatures in the Southern Hemisphere's mid-latitudes were ...

The prehistoric crocodile relative may have tolerated both freshwater and saltwater habitats, allowing it to conquer North ...

Late Jurassic and Early Cretaceous oceans are known for enormous ... it was likely a period of ocean anoxia and climate volatility related to the hottest interval of the last 541 million years.

Yet during the mid-Cretaceous, ichthyosaurs ... it was likely a period of ocean anoxia and climate volatility related to the hottest interval of the last 541 million years. This interval, known ...