A mosasaur tooth has been found at one of the most famous Late Cretaceous fossil sites in the world. That means the famous ...

Learn how chemical clues reveal a mosasaur was hunting in freshwater rivers as the Cretaceous seaway receded.

Most of us know at least a handful of dinosaur names such as T-rex and raptor, but few are probably familiar with the dinosaur species known as mosasaur. A mosasaur is a marine animal. A newly ...

Mosasaurs are best known as fearsome marine reptiles that ruled the oceans at the end of the dinosaur era. But new research suggests these giant predators were not limited to the sea. Evidence from a ...

Until now, these terrifying giant aquatic reptiles with a bulky skull and powerful jaws were thought to be sea-dwelling ...

Mosasaurs, giant marine reptiles that existed more than 66 million years ago, lived not only in the sea but also in rivers. This is shown by new ...