The prehistoric facial bones were found buried in 50 feet of mud and silt, and are believed to be 1.1 to 1.4 million years old, researchers said.

A blast from the past! Archeologists unearthed fossilized bone fragments in a cave in Spain that may represent a previously unknown species — making it the oldest-known human fossil ever discovered in Western Europe.

Researchers in Spain have discovered pieces of a fossilized face belonging to an ancient human ancestor. The fragments cannot be conclusively identified as any particular species.