Pacific Mastodon Fossil Tooth Found in San Mateo

Thairath•International•1h ago

Reader Briefing

A well-preserved Pacific mastodon tooth fossil was discovered in a stream in San Mateo County near San Francisco.

•A geomorphologist found a Pacific mastodon tooth fossil measuring nearly 9 inches long in a San Mateo County stream.
•The discovery was announced by scientists on September 16, 2026.
•The fossil has been handed over to the Doerr School of Sustainability at Stanford University for research.

•A geomorphologist discovered a large tooth fossil embedded in a stream in San Mateo County near San Francisco.
•The tooth fossil measures nearly 9 inches or approximately 23 centimeters in length.
•The fossil is described as being in remarkably complete condition, including both the tooth and the root.
•Bridget Lynch from Balance Hydrologic found the fossil while working on a habitat restoration project.
•The fossil was located in an area under the care of the Midpeninsula Regional Open Space District.
•The fossil was delivered to the Doerr School of Sustainability at Stanford University for study and research.
•Scientists plan to verify the age of the fossil and create a 3D model for public education.

Full article content is available on the original source.

San Mateo(ซานมาเทโอ)

A county near San Francisco where a mastodon tooth fossil was found in a stream.

San Francisco(ซานฟรานซิสโก)ℹ️

A city near where the mastodon tooth fossil was discovered.

Bridget Lynch(บริดจิด ลินช์)

A geomorphologist from Balance Hydrologic who discovered the fossil tooth.

Balance Hydrologic(บาลานซ์ ไฮโดรลอจิกส์)

The company where geomorphologist Bridget Lynch is employed.

Midpeninsula Regional Open Space District(เขตอนุรักษ์พื้นที่เปิดโล่งภูมิภาคมิดเพนนินซูลา)ℹ️

The organization overseeing the land where the fossil was discovered.

Doerr School of Sustainability, Stanford University(คณะวิชาความยั่งยืนดูเออร์ มหาวิทยาลัยสแตนฟอร์ด)

The institution that received the fossil for further study and research.