07174 - Superb 3.31 Inch OPHIURA SP Brittlestar Upper Ordovician Ktaoua Fm Symphysops Leiostegina

Leiostegina

The size of this fragment of Onchopristis rostral bone is probably only about a third of its original length

Mosasauridae Gervais

V -shaped anteriorly and U-shaped posteriorly

This is a small rarity coming from the Paleocene phosphate quarries of the sedimentarian basin of Oulad Abdoun (Morocco)

07174 - Superb 3.31 Inch OPHIURA SP Brittlestar Upper Ordovician Ktaoua Fm Symphysops LeiosteginaBeautiful 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.