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 ...

Geologists have uncovered the fossil of a mosasaur, an ancient aquatic predator, in Mississippi. Often referred to as a “sea dragon” due to its imposing size and fearsome appearance, this ...

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.

Mosasaurs, extinct marine reptiles that dominated Earth’s oceans during the Late Cretaceous period, have fascinated scientists since their discovery in 1766 near Maastricht, Netherlands. These ...

Science | May 2, 2024. Massive Mosasaurs May Have Evolved More Than Once. The predators, which were made famous in the “Jurassic World” franchise, likely arose at least three times ...

Although aquatic, mosasaurs breathed air and needed to sometimes surface to draw breath like whales or sea turtles. Their diet consisted largely of marine life that included turtles, fish, sea ...

Twenty-two years after John Hammond’s ill-fated attempt to open a dinosaur theme park, the world finally got its first look at a functioning park filled with prehistoric creatures and thousands ...

Geologists recently discovered the fossil of a Cretaceous-era mosasaur vertebra near Starkville, Mississippi. The experts believe the apex predator of the ancient seas could have weighed 20,000 ...

Scientists have discovered a new species of mosasaur, ... The Museum’s scientists draw on a world-class permanent collection of more than 34 million specimens and artifacts, ...

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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 ...