Well-preserved tooth from Pacific mastodon found in a creek in San Francisco Bay Area

10,000-year-old mastodon tooth fossil discovered in California creek bed

A fossilized Pacific mastodon tooth believed to be at least 10,000 years old was found in “immaculate condition” in a California creek bed, according to local officials.

While surveying a California creek for threatened red-legged frogs, a scientist spotted what looked like a rock; it was an intact mastodon…