3" Fossil Aglaspid (Tremaglaspis) - Morocco

This is a large, 3" long Aglaspid (Tremaglaspis sp.) from the Upper Fezouata Formation of Morocco. Aglaspids are a rare type of arthropod which was probably related to trilobites. For a while was regarded as the ancestors to horseshoe crabs, though this theory has fallen out of favor.

There is some restoration along the repaired crack that runs through it's head.