Home · Science · Sep 16 archive

Rare Fossil Tooth Unveiled in California Creek

Confirmed

Science Desk

In Short: A massive fossilized tooth discovered in a California preserve is giving scientists a rare glimpse into the Ice Age and the prehistoric creatures that once roamed the San Francisco Bay Area.

A rare fossil tooth, believed to belong to a Pacific mastodon, has been discovered in a California creek, providing scientists with a unique insight into the Ice Age and the prehistoric fauna of the region.

According to geomorphologist Brigid Lynch, who found the fossil while surveying rocks as part of a project to improve habitat for the threatened California red-legged frog, the tooth is about 8.5 inches long, 3 inches wide, and 7 inches deep, and is in immaculate condition.

The discovery was made at a Midpeninsula Regional Open Space District preserve, where Lynch, with Balance Hydrologics, was surveying rocks. She initially thought the tooth was oddly shaped, only to realize its significance later.

The fossil is giving researchers a rare opportunity to study past biodiversity, as Christine Garcia, curator of the Geoscience Specimen Collection at Stanford, explained. Scientists believe the ancestors of current local wildlife, such as mountain lions and bobcats, may have hunted alongside now-extinct animals like dire wolves or saber-tooth cats.

The tooth is not only a scientific marvel but also a testament to the rich prehistoric history of the San Francisco Bay Area, potentially offering clues about the diet and behavior of early American humans who relied heavily on large mammals for sustenance.

What's confirmed

What's still developing

Sources