Mosasaurus: Lizard King of the Ancient Ocean

Don’t believe everything you see in the movies.

Mosasaurs were huge marine reptiles that lived in the Late Cretaceous, alongside dinosaurs–but they were not dinosaurs themselves.

Find out all about mosasaurs—including what scientists are still trying to learn—from Museum graduate student Amelia Zietlow, who recently scanned two mosasaur fossils on display in the Museum’s Hall of Vertebrate Origins as part of her Ph.D. degree at the Museum’s Richard Gilder Graduate School, and her advisor, Curator Meng Jin from the Division of Paleontology.