Bible Dictionaries
Eurypteroidea

Webster's Dictionary

(n. pl.) An extinct order of Merostomata, of which the genus Eurypterus is the type. They are found only in Paleozoic rocks.

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