4" Detailed Ordovician Brittle Star (Ophiura) - Morocco

This is a large fossil brittle star (Ophiura sp) from the Kataoua Formation of Morocco. It's ordovician in age or approximately 450 million years old. The bright orange coloration is natural and due to the oxidization of iron pyrite. There is one repaired crack at the edge of the rock.

It comes with an acrylic display stand.