BOULDER COUNTY, Colo. (CBS4) – Eighth grader Jonathan Charpentier is the newest dinosaur discoverer for the Denver Museum of Nature and Science. He found a Tyrannosaurus rex tooth while out on a hike in southeast Boulder County.

“I never expected anything like that,” Charpentier told CBS4. “It was shiny, and it caught my eye, so I picked it up, but I had no clue that it would be a dinosaur tooth. When I got home and washed it off, then I knew it was not a rock, but something else.”

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Charpentier turned the tooth over to DMNS dinosaur curator Joe Sertich.

“I couldn’t believe it at first, I thought, ‘There’s no way it could be something that interesting’, but something that I felt said, ‘Send an email to the museum and see if they say anything about it,’” Charpentier said.

Sertich says Colorado is prime T-Rex territory.

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“Based on the area where this tooth came out it’s what we call the ‘Laramie Formation’ which is between about 68 million and 68 and a half million year sold, so it’s about 2 and a half million years before dinosaurs went extinct,” said Sertich. “This is one of the last dinosaurs that lived here in Colorado.”

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Charpentier’s discovery means a bigger dig for more dinosaur bones.

“It’s probably going to kick off a lot of new research, so we’re going to go back out to this area, maybe with Jonathan, and we’re going to collect more bones and hopefully there’s more of a T-Rex out there waiting for us to dig it up,” Sertich said.

Now a part of undigging Colorado’s history, Charpentier has some advice for other people who like to get outdoors.

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“Be on the lookout for these things, because you can really find them anywhere,” Charpentier said.