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Teen finds prehistoric mastodon jaw in southern Iowa

May. 17, 2019 2:22 PM EDT

IOWA CITY, Iowa (AP) — A teen searching for arrowheads in southern Iowa found something much bigger: the prehistoric jawbone of a mastodon. The Iowa City Press-Citizen reports that the 30-inch bone belonged to a juvenile mastodon, an elephant-like animal believed to have roamed Iowa some 34,000 years ago....