94-million-year-old fossil sea monster is oldest in North America

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Scientists have discovered a never-before-seen species of mosasaur in southern Utah, USA.

Discovery of a new species

Mosasaur fossils are estimated to be about 94 million years old.

Age of Fossil

The fossil was found in southern Utah, which was part of the Western Interior Seaway during the Cretaceous period.

Habitat and Distribution

The Mosasaurs were a group of marine reptiles that flourished and dominated the seas during the Cretaceous period.

Domination of the Mosasaurs

Some mosasaur species could grow up to 56 feet (17 m) in length.

Large size of mosasaurs

The discovery of this new mosasaur species expands our knowledge of the diversity and evolutionary history of these marine reptiles.

Significance of the discovery

The study describing the new species was published in the journal Cretaceous Research.

Publications and Research