In a groundbreaking study, new fossil evidence has shed light on the mysterious 5-million-year heatwave that followed Earth’s ...

Fossils from the Petrified Forest National Park, in northern Arizona, revealed the discovery of a new reptile species that ...

Paleontologists with the Petrified Forest National Park have named and described a new reptile within the park that lived in ...

By revisiting a fossil unearthed decades ago, paleontologists identified a new type of modified skin jutting out from the ...

During the Triassic period nearly 250 million years ago, a small reptile scurried after insects in the canopy of a lush ...

It suggests that such complex appendages already evolved among reptiles before the origin of birds and their closest ...

Mirasaura teaches us that a feather is only one of the many wondrous things that reptiles evolved to grow out of their skin,” ...

Preserved in tan stone, the fossil of Mirasaura included much of the ancient reptile’s skeleton and a feather-like fan that ...

A 247-million-year-old fossil reptile boasted an enormous crest on its back made from feather-like appendages, long before ...

A strange crest found on ancient reptile fossils suggests birds and dinosaurs may not have the exclusive lock on feather-like ...

“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 ...

It was big and burly, but don’t call this Triassic-era beast a dinosaur. More closely related to mammals, this oversized herbivore is rocking the paleontological world—and changing what we ...