At the end of the Cretaceous Period, a type of giant reptile called mosasaurs occupied and dominated oceanic food webs. Mosasaurs had long bodies and were related to both snakes and monitor lizards.

The Western Interior Seaway, which existed roughly 80 million years ago, split North America into North and South. It was a ...

What we see is that it was an active hunter, which tells us a lot about how we can compare it, for example, to modern-day ...

The Hell Creek Mosasaur, reconstruction by Christopher DiPiazza. Please note that more images and a short video are available at this link: https://springernature-my ...

A mosasaur tooth discovered alongside a T. rex tooth and a freshwater crocodilian jaw in North Dakota raised new questions about the final days of the Western Interior Seaway. Stable isotope analysis ...

Some 66 million years ago, a city bus-sized terrifying predator prowled a prehistoric river in what is now North Dakota. This finding is based on the analysis of a single mosasaur tooth conducted by ...

Researchers have revealed a previously unknown species of "giant sea lizard" with a fearsome set of "dagger-like" teeth that lived during the age of the dinosaurs. The new species, described in a ...

STARKVILLE, Miss.—Scientists with Mississippi State University are playing a key role in an exciting new fossil discovery that’s close to campus, a discovery that may represent the largest mosasaur ...

The remnants of a mosasaur show a sea predator that was ill equipped for slashing bites, and likely preferred to swallow its prey whole. Reading time 2 minutes Whoever said everything is bigger in ...

The mosasaur tooth that was found in 2022 in the Bismarck Area, North Dakota. Please note that more images and a short video are available at this link: https ...

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