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.

Researchers are calling for CT scans to confirm the authenticity of a Cretaceous period fossil that led to the identification of a new mosasaur species. Reading time 3 minutes In 2021, scientists ...

Scientists have discovered a new species of mosasaur, a giant sea-dwelling lizard that dates back to the age of the dinosaurs, that stands out because of its unique, star-shaped teeth. It’s thought ...

Scientists have discovered a new species of mosasaur, a sea-dwelling lizard from the age of the dinosaurs, with strange, ridged teeth unlike those of any known reptile. Along with other recent finds ...

A fossil once hailed as evidence of a unique mosasaur species, Xenodens calminechari, may be a forgery, a new study claims. The 72-million-year-old fossil, described in 2021, includes a partial ...

A giant ocean predator that terrorised the seas during the time of the dinosaurs may have also hunted in rivers, a tooth fossil discovered in North Dakota suggests. The extinct lizard-like reptile ...

In 2021, a groundbreaking study published in the Cretaceous Research journal unveiled the discovery of a new mosasaur species in Morocco. This marine lizard, described as having «shark teeth», was ...

The ancient seas of the Late Cretaceous period would’ve been scary places to swim. Between 66 million and 100 million years ago, the world’s waterways were chock-full of real-life sea monsters. Not ...

Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. An illustration of Xenodens ...

Fossils of a giant killer mosasaur have been discovered, along with the fossilized remains of its prey. At the end of the Cretaceous period, 66 million years ago, sea monsters really existed. While ...

Nicholas R. Longrich does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations ...