Mosasaurus ... Mosasaurus (/ ˌmoʊzəˈsɔːrəs /; "lizard of the Meuse River ") is the type genus (defining example) of the mosasaurs, 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 …

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. …

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, …

May 2, 2024 · Mosasaurus was a large generalist predator that pretty much ate anything it could catch in the prehistoric seas, from sharks and large fish to ammonites and other mosasaurs.

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

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 …

Mosasaurus Hoffmannii, commonly known as Mosasaurus, is an extinct species of amphibious reptile that adapted well to the ocean environment and was widespread throughout the …

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.