A surprising fossil find shows that some mosasaurs lived in ancient rivers as oceans changed near the end of the Cretaceous.

Mosasaurs, an extinct group of aquatic squamate reptiles, adapted to a very different environment during the Late Cretaceous period, as discovered by a group of scientists. These marine predators have ...

Giant mosasaurs, once thought to be strictly ocean-dwelling predators, may have spent their final chapter prowling freshwater ...

The size of the tooth testifies to an impressive creature that could grow up to 11 metres long. Reconstruction by Christopher ...

At the end of the Cretaceous Period, a type of giant reptile called mosasaurs occupied and dominated oceanic food webs.

Researchers have dated vertebrae from a massive prehistoric shark thought to have ruled the waves off northern Australia back ...

The remarkable skull will be on display from December 22 through December 28. After spending the next few years behind the ...

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 ...

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