Yohoia tenuis

Cambrian

Burgess Shale, Stephens Formation

Field, British Columbia BC Canada.

20mm rare Burgess Shale arthropod on 38mm slab.  Great appendages and legs are clearly visible.

Yohoia is a genus of extinct arthropod perhaps related to the first chelicerates or even the earliest arthropods.  It is a rare animal the Burgess Shale and is so far known only from that formation.