22438 - Top Beautiful 3.98 Inch OPHIURA SP Brittlestar Upper Ordovician Ktaoua Fm Petraster and visible cusps on the

and visible cusps on the roots

The exact taxonomic classification is complex given that there are very few published studies that refer to the rests of the Pterosaurs in the North African Upper Cretaceous

Confertisulcites

Beautiful preserved and well prepared specimen

22438 - Top Beautiful 3.98 Inch OPHIURA SP Brittlestar Upper Ordovician Ktaoua Fm Petraster and visible cusps on theBeautiful preserved and well prepared specimen. This type of brittlestar is quite representative of the Ordovician of the South of Morocco. Its orange colors come from the limonite (iron oxide) that is the product of the oxidation of the original pyrite that mineralized these fossils.