Mosasaurs were a diverse group of marine lizards which, much like whales and other cetaceans, adapted to life in the oceans. And though we’ve been digging them up for 200 years now, new species are ...

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.