Mosasaurus ... Mosasaurus (/ ˌmoʊzəˈsɔːrəs /; "lizard of the Meuse River ") is the type genus (defining example) of the Mosasauridae, an extinct group of aquatic squamate reptiles. It lived …

Many mosasaurs of the Late Cretaceous were large. The longest mosasaurs, based on a specimen of Mosasaurus hoffmanni, are estimated to have been 17 meters (about 56 feet) in …

Aug 6, 2021 · Mosasaurus What Is A Mosasaurus? Mosasaurus is an extinct aquatic reptile that lived at the very end of the Cretaceous Period, from around 82.7 to 66 million years ago. …

Nov 10, 2020 · What is a mosasaur? Mosasaurs are a group of marine lizards that would have lived in the Badlands area from about 75-69 million years ago. When they were alive, …

Oct 19, 2023 · Mosasaurs were Earth's last great marine reptiles. Learn about the surprising places they'd hunt, how some species dwarfed even the Tyrannosaurus rex, and how key …

Dec 31, 2025 · Mosasaurs were the apex predators of the oceans during the reign of the dinosaurs, but new research reveals dinosaurs weren't safe from them in rivers either.

Sep 23, 2025 · Large aquatic lizards used to populate the planet's oceans–and you can find their fossils in suburban New Jersey.

Aug 18, 2025 · Mosasaurus was a genus of large aquatic reptiles, not dinosaurs, that dominated the oceans during the Late Cretaceous period. They were apex predators, characterized by …

Explore the fascinating world of the Mosasaurus with this comprehensive guide filled with illustrations, facts, and more from the late Cretaceous period.

Discover the fascinating world of Mosasaurus, the giant marine reptile of the Late Cretaceous. Learn about its size, diet, habitat, and unique adaptations that made it one of the ocean's top …