The End-Cretaceous (K-Pg) Extinction: The Final Curtain Around 66 million years ago, Earth endured a mass extinction event that marked the end of the Cretaceous and the start of the Paleogene period.

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 ...

Cretaceous-tertiary cloud chamber / Niles Eldredge -- Palynological change across the Cretaceous-Tertiary boundary on Seymour Island, Antarctica : environmental and depositional factors / Rosemary A.

Add Yahoo as a preferred source to see more of our stories on Google. An artist's impression of the last dinosaurs from southern North America features a long-necked Alamosaurus. - Natalia Jagielska A ...

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 ...

A new study using advanced artificial intelligence (AI) has revealed that the asteroid strike that wiped out the dinosaurs 66 ...

Sixty-six million years ago, the dinosaurs had a really bad day when a colossal asteroid impact spurred their extinction. But ...

Violent supernovas may have caused two of Earth’s largest mass extinctions that have never been completely explained, according to a theory put forward in new research.During the final stages of a ...