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

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

In the badlands of Arizona, a team from the Smithsonian has identified Eotephradactylus mcintireae, a previously unknown ...

In the first and only reconstruction of ocean pH ever carried out, new research from the University of St Andrews and the ...

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

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

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

A rare Triassic fossil site reveals North America's oldest known pterosaur, Eotephradactylus mcintireae, in what was once a ...

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

Smithsonian scientists have uncovered North America’s oldest known pterosaur from a 209-million-year-old bonebed in Arizona’s ...

Researchers were able to date the fossil of the flying reptile, a close cousin of dinosaurs, back to more than 209 million years ago.

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 ...