Arizona is home to more than three dozen national parks, sites and monuments. These 10 easy to moderate hikes show off the ...

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.

Arizona's Petrified Forest National Park has done it again. The famed fossil-rich ground has provided paleontologists a remarkable finding, this time the discovery of North America's oldest known ...

A remarkable finding has surfaced in the colorful, fossil-rich badlands of Arizona’s Petrified Forest National Park: North America’s oldest known pterosaur. The newly identified species — a flying ...

PHOENIX — Fossils from the Petrified Forest National Park, in northern Arizona, revealed a new reptile species that thrived during the Triassic Period. Paleontologists and partners with the ...

Archaeologists in Northern Arizona have uncovered a 1,300-year-old village inside Petrified Forest National Park. It’s the second ancient village discovered in as many years at the park. Archaeologist ...

Volunteers working on fossils from a Petrified Forest National Park bonebed in the FossiLab on view to museumgoers in the David H. Koch Hall of Fossils – Deep Time at the Smithsonian’s National Museum ...

Forward [sic] / William G. Parker, David D. Gillette, and Randall B. Irmis -- Dedication to Sidney R. Ash, Ph.D. / David D. Gillette and William G. Parker -- On the shoulders of giants : influential ...

Researchers found North America’s oldest known pterosaur. Arizona’s Petrified Forest National Park has done it again. The famed fossil-rich ground has provided paleontologists a remarkable finding, ...