marine dinosaur, 1830, from Latin Mosa "the river Meuse" + -saurus. the fossils of the ancient reptile were first discovered 1780 near Maastricht, on the Meuse.
Examples from the Web for mosasaurus
In respect to the Crocodiles, the Mosasaurus resembles them in so far as they all belong to the same class of Reptiles.The World Before the Deluge|Louis Figuier
This suborder includes Mosasaurus and its allies, a group of enormous extinct marine reptiles found in beds of Cretaceous age.The Vertebrate Skeleton|Sidney H. Reynolds
The teeth are quite reptilian, being not unlike miniature teeth of Mosasaurus.Dragons of the Air|H. G. Seeley
Mosasaurus princeps is computed to have been seventy-five to eighty feet long.Extinct Monsters|H. N. Hutchinson
One great marine form, however, the Mosasaurus, was added to their number.Omphalos|Philip Henry Gosse