"Welcome to the Black Triangle," said paleobiologist Cindy Looy as our van slowed to a stop in the gentle hills of the northern Czech Republic, a few miles from the German and Polish borders.

A new species of ancient reptile has been named after spending more than 200 million years buried in the ground. Threordatoth chasmatos was one of the last survivors of the procolophonids, a group ...

The Early Permian dissorophid Cacops displays its fearsome dentition as it preys on the hapless reptile Captorhinus. (Credit: Illustration by Brian Engh (dontmesswithdinosaurs.com)) The dissorophid ...

The mass extinction that ended the Permian geological epoch, 252 million years ago, wiped out most animals living on Earth. Huge volcanoes erupted, releasing 100,000 billion metric tons of carbon ...

The Triassic Period was a time of great change. Bookended by extinctions, this era saw huge shifts in the diversity and dominance of life on Earth, ushering in the appearance of many well-known groups ...