Existing from 100 to 66 million years ago, mosasaurs were apex predators, alongside the Tyrannosaurus rex, facing extinction due to an asteroid
Mosasaurs evolved from squamate reptiles, transitioning from land to sea with elongated bodies, up to 50 feet in length, and powerful tails
Inhabiting diverse marine environments, mosasaurs faced extinction 66 million years ago due to an asteroid impact, contributing to our understanding of prehistoric marine