New research has identified the face, structures, and orientation of an ancient creature called Hallucigenia whose ambiguous body had long puzzled the scientific community.

Finding the face usually isn’t the main problem when studying an ancient creature, but one in particular had scientists baffled until recently. 

According to a new study, the head of the 508-million-year old worm-like arthropod has been identified by newly located teeth and eyes. 

The orientation of the body had previously been a mystery, as it had spikes protruding from one side, tentacle