Bible Dictionaries
Protohippus

Webster's Dictionary

(n.) A genus of fossil horses from the Lower Pliocene. They had three toes on each foot, the lateral ones being small.

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