An asteroid at the end of the Cretaceous Period ended the dinosaurs, but earlier smaller extinctions dramatically set the ...

When we think of the age of dinosaurs, we often picture huge reptiles like Tyrannosaurus rex or long-necked dinosaurs ...

So many extinction-level events happened in ancient times, it is a wonder anything survived. These the ones that killed the ...

Some grew larger and specialized in eating plants—a ... of the land. The Cretaceous Period, lasting from about 145 to 66 million years ago, was the end of the Mesozoic Era.

For many, it is dinosaurs, the fierce and powerful stars of the Mesozoic ... during the Cretaceous mass extinction (the fifth mass extinction) about 66 million years ago, a new era of “megafauna ...

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 ...

The piece illustrates the disparity of the Northern and Southern hemisphere’s evolution of terrestrial Cretaceous faunas ...