Continents were on the move in the Cretaceous, busy remodeling the shape and tone of life on Earth. At the start of the period, dinosaurs ruled the loosening remnants of the supercontinent Pangaea ...

Unreal Amber Fossils Show ‘Last of Us’ Zombie Fungus Terrorizing Bugs During the Cretaceous Researchers discovered two previously unknown species of parasitic fungi inside ancient amber fossils.

The Cretaceous period was the last and longest segment of the Mesozoic era. It lasted approximately 79 million years, from the minor extinction event that closed the Jurassic period about 145 ...

Kids will love the hands-on activities and indoor Cretaceous diorama, and adults will be equally wowed by the paleontology ...

This photograph of a Field Museum diorama of the ocean floor during the Cretaceous shows many free-swimming, complex organisms, including the large ammonoid ...

This allowed the scientists to create a timeline of nearly 2 million years at the end of the Cretaceous - with a resolution of 100,000 years - representing the period right before extinction.

Exquisitely preserved fossils of a shark that thrived during the Cretaceous period appear to solve a long-standing mystery around how it hunted and where it fits into the shark evolutionary tree ...

In the late Cretaceous, dinosaurs ruled the earth. They were the most diverse and widespread land animals on the planet. “Most major terrestrial niches were occupied by dinosaurs, particularly toward ...

Ducks may have been paddling about in primeval swamps when T. rex was king of the dinosaurs, scientists have announced in the journal Nature. Fossil remains of a bird that lived 70 million years ago ...

In the Cretaceous about 80 million years ago -- well after the end-Permian mass extinction -- the ocean floor was dominated by complex ecosystems that had largely displaced the simple ecosystems.