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 ...

The discovery of nearly 20 alligator-size amphibians that died together during the Triassic in what is now Wyoming is ...

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

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

“Over the past two decades, about 30 new species have been described from Triassic beds of Brazil, including forerunners to mammals and representatives of distinct lineages of archosaurs ...

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

Scientists have discovered a new lizard-like species that lurked in shallow water to pick off its prey – with the help of a short, flat tail used as a float. Some 240 million years ago, the ...

Bite marks on Triassic fossils show signs of bloody dino decapitation. Aquatic dinosaurs evolved long, inflexible necks—an asset for foraging, but also a liability. By Sara Kiley Watson.

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