The aquatic reptile, a superpredator of the mosasaur family, inhabited the seas of what is now the northeast of the country ...

A team of researchers has identified a new species of mosasaur, an extinct aquatic reptile that dominated the oceans during the late Cretaceous period. This discovery, named Jormungander walhallaensi ...

Imagine swimming in the ocean and suddenly spotting a creature larger than any shark, faster than any human can sprint, and more vicious than any predator alive today. Meet the Mosasaurus, a marine ...

At the end of the Cretaceous Period, a type of giant reptile called mosasaurs occupied and dominated oceanic food webs. Mosasaurs had long bodies and were related to both snakes and monitor lizards.