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.

Along Interstate 40 in Northern Arizona, Petrified Forest National Park is just a few hours east of Grand Canyon Nation ...

Learn how fossils from Arizona’s Petrified Forest National Park revealed that a Late Triassic crocodile relative may have ...

Newly-Named Prehistoric Reptile Roamed Ancient Arizona 215 Million Years Ago In A Nutshell Scientists discovered a new ...

Petrified Forest National Park is the only national park in the U.S. with a section of old Route 66. The park is also home to a "rainbow" forest, which has colorful tree fossils that are more than 200 ...

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 ...

If you thought that crocodiles were menacing enough, be glad that you didn’t live in Arizona some 225–201 million years ...

Researchers report three distinct tanystropheid taxa from the upper Blue Mesa Member of the Chinle Formation in the Petrified Forest National Park in Arizona, including a new genus and species, ...

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 ...