A plant that lived 47 million years ago in what is now Utah is like nothing that lives on planet Earth today. The discovery ...

Fossils of the pterosaur were discovered in Petrified Forest National Park. The fossils date back 209 million years.

In the remote reaches of Arizona s Petrified Forest National Park, scientists have unearthed North America's oldest known pterosaur a small, gull-sized flier that once soared above Triassic ecosystems ...

The well-preserved fossils show a variety of animals, plants, and leaves, with 83 different types of foliage. Plant-insect ...

Measuring shells and skeletons encased in thousands of limestone samples has revealed that the sheer amount of living stuff ...