Four Ordovician Starfish (Petraster?) Fossil - Morocco

This is a plate containing four Ordovician aged starfish (Petraster?) from the Tiouririne Formation near Kaid rami, Morocco. There are two starfish on one side and the other two appear on the reverse side of the rock. The orange coloration is natural and due to the oxidation of iron. Some of the rock has undergone glue stabilization for lasting integrity.

It comes with an acrylic display stand.