Fossil Starfish (Petraster?) & Edrioasteroids (Spinadiscus) - Morocco

This is a 2.5" wide, Ordovician aged starfish (Petraster?) that's associated with two edrioasteroids (Spinadiscus lefebvrei). It comes from the Tioririne Formation near El Kaid Rami, Morocco. The specimen shows an amazing amount of detail and the natural, orange coloration is due to the oxidization of iron pyrite. There are a few areas of restoration on the starfish.