Giant reptiles, masters of the oceans more than 66 million years ago, swimming in rivers? A recent discovery in North America ...

A newly described fossil from northern Australia reveals an 8 meter mega-shark that hunted in the age of dinosaurs, long ...

Fossils reveal that giant predatory sharks existed 15 million years before megalodon and were already top predators in Cretaceous seas.

A near-perfect fossilized skull discovered in Antarctica reveals the bridge between prehistoric and modern birds, a new study has found. The fossil is a specimen of a species called Vegavis iaai, ...

The high seas of the dinosaur era were teeming with a plethora of squids, a new study has found. Using a new technique for analyzing fossils locked away in chunks of rock, paleontologists in Japan and ...

The Cretaceous Period, spanning approximately 145 to 66 million years ago, represents a critical era in Earth’s history when greenhouse conditions, dynamic plate tectonics, and widespread volcanic ...

Global warming. Rising sea levels. Massive volcanic activity around the world. Widespread erosion. It's not a scene from the latest Hollywood disaster film, "The Day After Tomorrow," but Earth as it ...

As nasty as the asteroid impact at the end of the Cretaceous sounds, you wouldn't think scientists would be spending much time asking, "Yeah, but how did things actually die?" It's not just a macabre ...

The climate history of the earth is marked by periodic changes that are usually ascribed to the solar radiation reaching the surface of the earth. This insolation is not constant over geological time ...