Bible Dictionaries
Mosasaurus

Webster's Dictionary

(n.) A genus of extinct marine reptiles allied to the lizards, but having the body much elongated, and the limbs in the form of paddles. The first known species, nearly fifty feet in length, was discovered in Cretaceous beds near Maestricht, in the Netherlands.

Bibliography Information
Webster, Noah. Entry for 'Mosasaurus'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​m/mosasaurus.html. 1828.