Bible Dictionaries
Ichthyosaurus

Webster's Dictionary

(n.) An extinct genus of marine reptiles; - so named from their short, biconcave vertebrae, resembling those of fishes. Several species, varying in length from ten to thirty feet, are known from the Liassic, Oolitic, and Cretaceous formations.

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