An Iowa teen searching for arrowheads found something much older and rarer – a jawbone from a prehistoric mastodon.

Mastodons are elephant-like creatures who roamed the area about 34,000 years ago. Researchers say the bone fragment likely belonged to a young mastodon who stood about 7 feet tall.

The owners of the farm where it was found have donated the remains to the University of Iowa, but are staying anonymous so more fossil hunters don’t trespass on their property.

Source: https://www.kcci.com/article/teen-finds-prehistoric-mastodon-jaw-in-southern-iowa/27507656