Bible Dictionaries
Ammonitoidea

Webster's Dictionary

(n. pl.) An extensive group of fossil cephalopods often very abundant in Mesozoic rocks. See Ammonite.

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