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StatushevStat1990 2024-03-03 10:01:02 UTCStatushevStat1990
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Mosasaurus 3D model
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 from about 82 to 66 million years ago during the Campanian and Maastrichtian stages of the Late Cretaceous. The earliest fossils of Mosasaurus known to science were found as skulls in a chalk quarry near the Dutch city of Maastricht in the late 18th century, which were initially thought to have been the bones of crocodiles or whales.