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.

The upper jawbone and partial cheek bone represent a mysterious unknown species that lived in present-day Spain between 1.1 million and 1.4 million years ago, according to a new study

The fragmentary facial bones belong to Homo affinis erectus, an esoteric offshoot of our family tree that inhabited Spain more than one million years ago.