Skip to main content
institutional access

You are connecting from
Lake Geneva Public Library,
please login or register to take advantage of your institution's Ground News Plan.

Published loading...Updated

Well-Preserved Tooth From Pacific Mastodon Found in a Creek in San Francisco Bay Area

The 9-inch fossil will be studied for its exact age and copied in 3D for public outreach, researchers said.

  • Earlier this year, geomorphologist Brigid Lynch discovered a fossilized Pacific mastodon tooth while working on a habitat restoration project in a San Mateo County creek.
  • The Midpeninsula Regional Open Space District, which manages over 70,000 acres in the Santa Cruz Mountains, announced the find this week as part of its land preservation mission.
  • Chrissy Garcia, curator and manager of the Doerr School of Sustainability's specimen collections, said the fossil is about 9 inches long and noted it is in great condition with both crown and root intact.
  • Stanford University's Doerr School received the fossil donation, while the district will create a 3D copy for public education to demonstrate the value of protecting open spaces, said spokesperson Ryan McCauley.
  • Mastodon fossils appear with some frequency depending on location, said Ron Tykoski, vice president of science at the Perot Museum of Nature and Science in Dallas, as multiple species roamed North America until 10,000 to 12,000 years ago.
Insights by Ground AI

22 Articles

Winnipeg Free PressWinnipeg Free Press
+15 Reposted by 15 other sources
Center

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

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.

·Winnipeg, Canada
Read Full Article
Think freely.Subscribe and get full access to Ground NewsSubscriptions start at $9.99/yearSubscribe

Bias Distribution

  • 52% of the sources are Center
52% Center

Factuality Info Icon

To view factuality data please Upgrade to Premium

Ownership

Info Icon

To view ownership data please Upgrade to Vantage

OUTDOORS.COM broke the news on Friday, September 11, 2026.
Too Big Arrow Icon
Sources are mostly out of (0)

Similar News Topics

News
Feed Dots Icon
For You
Search Icon
Search
Blindspot LogoBlindspotLocal