Four Ordovician Starfish (Petraster?) Fossils - Morocco

This is an association of four Ordovician aged starfish (Petraster?) from the Tiouririne Formation near Kaid rami, Morocco. The largest starfish measures 1.6" across. The orange coloration is natural and due to the oxidation of iron. The rock has some repaired cracks and all of the starfish have some restoration along these crack repairs.

It comes with an acrylic display stand.