Now, evidence suggests that some of these spiral-shaped species did manage to persist after all. Recent analysis of ammonite ...

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 ...

Dinosaurs ruled the Earth for over 150 million years. Compared to the mere 4–6 million years that scientists believe humans and their earliest ancestors have been on the planet, it wouldn’t be ...

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

If you’re an animal living through a mass extinction, it’s best to be one that’s found a unique way to make a living. A new analysis of the species that lived or died out in the wake of the asteroid ...

A site in the San Juan Basin of northwestern New Mexico is providing a rare glimpse into the last days of the dinosaurs. Rocks and fossils at the Naashoibito Member site show an ecosystem that was ...

Researchers suggest that ground-based mammals fared better than their arboreal relatives during the end-Cretaceous extinction thanks to their lifestyle. Reading time 2 minutes The end-Cretaceous ...

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 ...

A man has made an unusual discovery in Denmark: a lump of fossilized animal vomit that is thought to be around 66 million years old. These types of fossils are known technically as regurgitalites.

When most people think of massive snakes, the first one that comes to mind is the anaconda. Anacondas might be the largest ...