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.
Online Etymology Dictionary, © 2010 Douglas Harper
Examples from the Web for mosasaurus
Mosasaurus princeps is computed to have been seventy-five to eighty feet long.
One great marine form, however, the Mosasaurus, was added to their number.Omphalos
Philip Henry Gosse
The teeth are quite reptilian, being not unlike miniature teeth of Mosasaurus.Dragons of the Air
H. G. Seeley
In size, the vertebr of this enormous sea-serpent exceed those of Mosasaurus brumbyi.
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