After years of analysis, the animal turned out to be an entirely new species — one that lived millions of years longer than ...

In a dry riverbed in Brazil, in a dense forest near the Amazon, a team of paleontologists found a fossilized jawbone from an ...

Scientists have described Tanyka amnicola, a newly identified species of prehistoric creature that lived 275 million years ...

In paleontology, lineages that drop out of the fossil record and then re-emerge after long periods are termed ‘Lazarus taxa.’ ...

Researchers discovered that a 215-million-year-old reptile started life on four legs and switched to two as an adult.

"It's a really strange animal, and the weird twist in the jaw drove us crazy trying to figure it out." ...

With its uniquely twisted jaw and sideways-facing teeth, the new species was a relic of an earlier and more experimental time in the evolution of life on Earth. Fossils discovered in Brazil show that ...

“Living fossil” is often misused, but chitons really haven’t changed much in about 300 million years.

Scientists discovered a bizarre 275-million-year-old aquatic animal with sideways teeth and a twisted jaw in Brazil, revealing a rare “living fossil” lineage from the Permian period.

518-million-year-old fossil reveals vertebrates once had four eyes and extra organs that later shaped evolution.

Based only on jawbones, scientists have described a new salamander-like animal that would have been a “living fossil” for its ...

The remains of a "weird" creature with a twisted jaw and sideways-facing teeth have been discovered in the Amazon jungle.