Topic summary
Mosasauridae
Extracted from the Wikipedia article Mosasaur.
Mosasaurs (from LatinMosa meaning the 'Meuse', and Greekσαύροςsauros meaning 'lizard') are an extinct group of large aquatic reptiles within the family Mosasauridae that lived during the Late Cretaceous. Their first fossil remains were discovered in a limestone quarry at Maastricht on the Meuse in 1764. They belong to the order Squamata, which includes lizards and snakes.