Large, 7.7" Wide Ophiura Brittle Star Fossil

This is a very large Ophiura brittle star fossils from the Kataoua Formation of Morocco. It's 7.7" wide and nicely centered an a solid slab of limestone. 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 appears to be some restoration to the tips on two of the arms.

Comes with a display stand.