Jormungandr walhallaensis, which lived about 80 million years ago, has been deemed a new species and genus of mosasaur, an ancient lineage of marine reptile predators that dwelled the Earth’s ...

A new species of mosasaur — Jormungandr walhallaensis — is unusual, displaying a mix of traits from other creatures of its kind. Challenging what’s known about these ancient giants, it could ...

Jormungandr walhallaensis was like a giant Komodo dragon with flippers. It was more than 20 feet long when it stalked the Cretaceous seas.

The newly described mosasaur is Jormungandr walhallaensis, a 24-foot-long 7.3-meter-long) lizard with sharp teeth and a stumpy tail that inhabited the Western Interior Seaway, a body of water ...

The whole name is Norse in theme, with Zietlow and her colleagues selecting the first part, Jormungandr, to reference the massive monste r that the ancient Norse imagined to usher in the end of the ...

A new species of mosasaur — Jormungandr walhallaensis — is unusual, displaying a mix of traits from other creatures of its kind. Challenging what’s known about these ancient giants, it could ...