4.3" Ordovician Brittle Star (Ophiura) Fossil - Morocco

This is a large Ophiura brittle star fossils from the Kataoua Formation of Morocco. These Ophiura brittle stars are Ordovician in age, or approximately 450 million years. The dark orange coloration is due to the oxidization of iron pyrite. There is one repaired crack in the rock.

Comes with a display stand.