But as the continents spread, the ocean currents churned with ever more vigor. After a temperature spike in the mid-Cretaceous, the climate began to cool, and the tenor changed. Other creatures ...

The UK's famous White Cliffs of Dover are just one of many Late Cretaceous chalk deposits. Chalk is laid down in marine environments, and the fossils within it can tell us about the creatures that ...

Xiphactinus trolled an ancient ocean called the Western Interior Seaway, which covered much of central North America during the Cretaceous. Though long extinct, if alive today the bony fish would ...

For most of the Cretaceous, Canada’s prairie provinces ... connecting the Arctic Ocean with the Gulf of Mexico. It essentially cut the continent in two, separating two large land masses ...

As continents heaved upward, pushed by the movement of tectonic plates, ocean currents were redirected ... years leading up to the end of the Cretaceous. Sea Level The presence of 65- to 70 ...

This was the birth of the North Atlantic Ocean. Coelophysis lived towards the end of the ... Explore other dinosaurs from the Late Jurassic. During the Cretaceous the land separated further into some ...