The earliest animals may have evolved hundreds of millions of years before their first unmistakable fossils appear in the ...

For nearly 30 years, a small fossil from Scotland has been celebrated as one of the earliest known reptiles. A new study out ...

Scientists thought Lizzie was an early reptile for more than 30 years. But advanced X-ray scans of the 345-million-year-old ...

Unlike most modern mammals, which get just two sets of teeth in their lifetime, an ancient species from the Cretaceous, found ...

Fossilised teeth across Europe had been wrongly identified until the latest find in south Wales.

Paleontologists suggested that zhelestids represented an unknown group of hoofed mammals—now known to be rather far from the ...

What do you do when your entire identity is snatched away from you? Probably not much when you’ve been dead for 345 million ...

An Illinois fossil was reclassified as Jeanerpeton mazonensis, revealing diversity among early amphibian relatives 309 ...

Four fossils from China put the starfish ancestor on the seabed with feathery feeding arms instead of a burrow and gill slits ...

Jeanerpeton mazonensis, an early ancestor of modern amphibians, looked like a salamander with the squat, chubby build of a ...