A giant marine predator, once believed to roam only the seas, may have also inhabited ancient rivers 66 million years ago.
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 research based on analyses of a mosasaur tooth found in ...
A mosasaur tooth has been found at one of the most famous Late Cretaceous fossil sites in the world. That means the famous ...