Everyone knows that dinosaurs are extinct, and most people have some idea about how it might have occurred. But the exact periods in history when it happened are less well known. Was it a single ...

Learn how egg size may help explain why ammonites didn’t survive the end-Cretaceous extinction 66 million years ago, while ...

The Cretaceous Era—roughly 145 to 66 million years ago—was the last hurrah of the dinosaurs. A massive asteroid impact brought them to a violent end, but there’s more to the story. The Cretaceous ...

Yale University ecologists reveal a lizard lineage that rode out the dinosaur-killing asteroid event with unexpected evolutionary survival traits. Night lizards (family Xantusiidae) survived the ...

For 350 million years, ammonites were the resilient masterpieces of the ancient seas. They survived the Great Dying of the ...

When dinosaurs vanished, Earth did not fall silent but entered a turbulent period of ecological collapse and renewal Evidence ...

Los Angeles, CA (June 27, 2024) —A new study published in the journal Nature Communications led by paleontologists at the University of Bristol along with a team of international researchers, ...

Learn about a small rodent-like mammal whose descendants survived the extinction event that killed all non-avian dinosaurs.

The Cretaceous–Paleogene (K–Pg) mass extinction event, marking the boundary between the Cretaceous and Paleogene periods approximately 66 million years ago, stands as one of the most profound ...

Late Jurassic and Early Cretaceous oceans are known for enormous and fierce predators like pliosaurids with 2-meter-long jaws, toothy thalattosuchia crocodyliforms, and fast, fish-like ichthyosaurians ...

Some of the most beautiful creatures to grace the ancient seas, the ammonites, disappeared in the end-Cretaceous mass ...