Scientists in Australia have identified the oldest known fossil footprints of a reptile-like animal, dated to around 350 million years ago. The discovery suggests that after the first animals emerged ...

Some 247 million years ago, a bizarre, six-inch-long reptile crept down a branch, its prehensile tail and feet clutching the bark like a monkey, and its narrow, birdlike face scanning its surroundings ...

Amateur palaeontologists have found the earliest-known footprints of a reptile-like creature called an amniote. The tracks are about 356 million years old, pushing back the origin of reptiles and ...

The discovery, in a bizarre animal not closely related to birds, could change how scientists think about the origin of feathers. The holotype fossil of Mirasaura, which was found in 1939 in ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Distinct clawed ...

The fossil of a previously unknown reptile that had snake-like fangs and lived about 167 million years ago has been discovered on Skye. Experts said their research had revealed it to be a new species ...

Body coverings such as hair and feathers have played a central role in evolution. They enabled warm-bloodedness by insulating the body, and were used for courtship, display, deterrence of enemies and, ...

Paleontologists from Petrified Forest National Park and the Smithsonian National Museum of Natural History named and described a new species of "unusual, long-necked reptile" after microfossils of the ...

A reptile from the Middle Triassic had a spectacular crest made from feather-like structures, around 100 million years before the first feathered dinosaurs. Its remains comprise two fossils with the ...