A timeline-driven account based on rock-core drilling and global sediment layers: the initial fireball, tsunami and shock ...

Science has advanced not just through steady progress, but often through the perseverance of individuals whose ideas were ...

Earth, triggering one of the most devastating mass extinctions in history. In a single moment, life on the planet changed ...

The presence of driftwood and lake sediments has long been known in Stanton's Cave in Marble Canyon of eastern Grand Canyon. The mouth of the cave is 150 feet above the river, so geologists wondered ...

Fossils of the pterosaur were discovered in Petrified Forest National Park. The fossils date back 209 million years.

Scientists have unearthed in Arizona fossils from an assemblage of animals, including North America's oldest-known flying reptile, that reveal a time of transition when venerable lineages that were ...

Imagine the sound of a dinosaur roaring... Super loud, right? Wrong... It turns out the giant prehistoric creatures almost certainly didn't roar. You might be surprised to hear that some scientists ...

The dinosaurs were not in decline before the asteroid hit, a new study finds. Instead, poor fossilization conditions and unexposed late Cretaceous rock layers mean they're either not preserved or ...

An analysis of North America’s fossil record for the 18 million years before dinosaurs disappeared suggests the prehistoric creatures’ extinction wasn’t inevitable.

A new study challenges the belief that dinosaurs were declining before the asteroid impact that ended their reign. Analysing 18 million years of fossil data, researchers argue that apparent drops ...