Thoralocystis sp.
Early Ordovician (Arenigian)
Upper Fezouata Formation
Zagora, Draa Valley
Morocco

The Fezouata Formation is one of the world’s most important Ordovician fossil deposits, preserving an extraordinary diversity of marine life including trilobites, arthropods, echinoderms, and soft-bodied organisms. Cornute echinoderm fossils provide valuable insight into the diversity of early echinoderms more than 470 million years ago.
18mm on 63mm matrix.