Multiple Ordovician Brittle Star (Ophiura) Plate - Morocco

This is a slab of limestone with three detailed and brightly colored 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.

Comes with a display stand.