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 ...

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 ...

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

A Smithsonian-led team of researchers have discovered North America's oldest known pterosaur, the winged reptiles that lived ...

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

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

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

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

As climate change threatens tropical forests, a new study shows how the loss of those forests can be devastating to life on ...

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