Mosasaur evolution represents one of the most striking examples of evolutionary innovation among marine reptiles. Emerging in the mid-Cretaceous, these marine squamates rapidly diversified to occupy a ...

Add Yahoo as a preferred source to see more of our stories on Google. Mosasaurs, extinct marine reptiles that dominated Earth's oceans during the Late Cretaceous period, have fascinated scientists ...

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 ...