When Owen Vettraino of Birch Run, Michigan grows up, he wants be a builder and create large skyscrapers, but his goals may change due to what he found beneath the ground.

Owen was riding four-wheelers with his cousin at his grandparents' house last weekend when he saw something strange near the pond. He thought he found a dinosaur bone.

It was his dad who figured out what it was a mastodon tooth.

According to the University of Michigan, it appears to be an upper tooth and is 11,000 to 13,000 years old.

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