Mosasaurus hoffmannii was the apex predator of the Late Cretaceous oceans, reaching 11 metres (36 ft) in length and 3.8 metric tons (4.2 short tons) in body mass.

Dive into the fascinating world of the Mosasaurus, one of the most formidable predators to ever rule the ancient seas. This video explores the real history and science behind this incredible ...

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.

Aug 8, 2025 · Discover Mosasaurus with our interactive fossil map and geographical timeline chart.

Feb 25, 2025 · Mosasaurus is one of the most fascinating creatures from the seas of the Late Cretaceous period. This massive marine reptile, which reached lengths of over 56 feet, was a …

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, …

Mar 26, 2022 · The Mosasaurus was a genus of small to monstrous sea-dwelling reptiles that lived in the waters of the Late Cretaceous oceans during the Maastrichtian geologic timescale.

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. …

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 …

Feb 1, 2025 · Mosasaurus was one of the most fascinating marine reptiles of the Late Cretaceous period. This powerful predator ruled the ancient oceans, boasting an impressive size that …