A prehistoric carbon spike turned oceans deadly and wiped out marine life. Scientists say today’s CO₂ rise could cause the ...

By simulating the movement of two continent-sized Big Lower-Mantle Basal Structures, or BLOBs, researchers may have uncovered ...

A vertebrate fossil discovered in a rock from the Late Triassic period (approximately 220 million years ago) in Takahashi ...

Paleontologists know the bone bed as PFV 393. The late fossil preparator Bill Amaral found the site in 2011 on a field trip ...

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 ...

Smithsonian researchers have linked discoveries within Arizona’s Petrified Forest National Park with a previously unknown ...

Scientists have unearthed in Arizona fossils from an assemblage of animals, including North America's oldest-known flying ...

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

Paleontologists have uncovered in Arizona a Triassic treasure trove of fossils dating back 209 million years ago.

Eotephradactylus mcintireae’ is the oldest-known flying reptile from the continent and roamed the skies 209 million years ago.

Explore Arizona’s Painted Desert: colorful badlands, easy hikes, cultural gems, and top visiting tips for a one‑of‑a‑kind ...