A large extinct marine reptile in the family Mosasauridae, dominant marine predator of the Cretaceous. Mosasaurs are considred to be in squmata, the same group that includes lizards and snakes.

plural of mosasaur

Any member of the Mosasauroidea, an extinct superfamily of Late Cretaceous lizards including the mosasaurs and aigialosaurs.

plural of mosasaurid

Any extinct aquatic reptile of the superfamily Mosasauroidea, variously interpreted as related to or belonging to the lizards or the snakes.

plural of mosasauroid

plural of mosasaurine

Any extinct squamate mosasaur of subfamily Mosasaurinae