Mosasaur fossils excavated in Osaka in the 1990s and stored for 30 years include a bone which may represent a new species entirely.

The curious minds at What If examine the hypothetical deep-sea clash between the massive Megalodon and the apex marine reptile Mosasaurus to determine which prehistoric giant would dominate the ocean.

You wouldn’t want to swim in Late Cretaceous seas. If you’ve seen the first Jurassic World movie, you’ll recognize a mosasaur as the creature that leapt from the water to eat a great white shark. That ...

The curious minds at What If explore the terrifying possibility of the prehistoric Mosasaurus surviving into the modern era ...

Researchers said they had discovered a new line of mosasaur, a giant sea-dwelling creature that lived alongside the dinosaurs. Its name, Jormungandr walhallaensis, draws on Norse mythology. By Orlando ...

An enormous sea snake from Norse legend that was fathered by the trickster god Loki and grew big enough to circle the globe is now the namesake for a different type of “monster” — a newly discovered ...

No aquatic reptiles today can match mosasaurs, ocean-dwelling creatures of the Cretaceous period that looked something like a cross between a whale and a shark. Now, a group of researchers have ...

Researchers at the University of Cincinnati identified a new species of mosasaur—an 18-foot-long fish-eating monster that lived 80 million years ago. UC assistant professor-educator Takuya Konishi and ...

Researchers at the University of Cincinnati identified a new species of mosasaur — an 18-foot-long fish-eating monster that lived 80 million years ago. UC assistant professor-educator Takuya Konishi ...