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The San Antonio

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

Well-preserved tooth from Pacific mastodon found in a creek in San Francisco Bay Area
Photo: KSAT 12 (ABC affiliate) · view original

Brigid Lynch was working along a wooded creek in a mountainous part of the San Francisco Bay Area when something that didn't look like the rocks she'd been studying caught her eye. It turned out to be the fossilized tooth of a Pacific mastodon. “I keep joking it wasn’t hard to find,” Lynch, a geo...

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