You might know the Cretaceous Period for big animals such as Tyrannosaurus rex and Triceratops, or for being the end of the age of dinosaurs. But what was the world like in the millions of years ...

At the beginning of the Cretaceous Period (145 million to 66 million years ago) sharks were once again widely common and varied in the ancient seas, before experiencing their fifth mass extinction ...

During this period, oceans formed as land shifted and broke out of one big supercontinent into smaller ones. 3 min read Continents were on the move in the Cretaceous, busy remodeling the shape and ...

Digital reconstruction of the Late Cretaceous (~69 million years old) crown bird Vegavis iaai that was completed following ...