Tucked away in a remote bonebed in Arizona's Petrified Forest National Park laid hundreds of fossils, including a fragile jawbone belonging to one of the oldest-known flying reptiles: the pterosaur.

Researchers at Petrified Forest National Park discovered fossils that revealed a new species, which is 220 million years old. A burrowing reptile called drepanosaur, the new species is named ...

A recent fossil discovery adds a surprising new member to the diverse array of animals that lived in the Petrified Forest 220 million years ago during the Triassic Period: an early mammal relative the ...

Leco's find happened during the first citizens dig at the Petrified Forest The fossil belongs to a fish known to exist more than 220 million years ago Scientists plan to return next summer to find a ...

In the hills outside the small village of Sexi, Peru, a fossil forest holds secrets about South America’s past millions of years ago. When we first visited these petrified trees more than 20 years ago ...

Petrified wood is a fossil that is the remains of ancient vegetation, most commonly ancient trees. It occurs by a natural action known as permineralization, a process in which mineral deposits take on ...