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

Mosasaurs were enormous reptiles best known for ruling ancient oceans more than 66 million years ago, but new evidence suggests some also lived in rivers. Scientists reached this conclusion after ...

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When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Mosasaurs went extinct 65.5 million years ago in the same mass extinction event that wiped out ...

The Dinosaur Train arrives in Laramidia, the Dinosaur Big City, and Buddy and the Pteranodon family explore the crowded “dinosaur metropolis.” At the Theropod Convention, our kids reunite with Annie ...

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