22075 - Superb 5.88 Inch OPHIURA SP Brittlestar Upper Ordovician Ktaoua Fm Mawsonia (Coelacanth) United States (4: Missouri

United States (4: Missouri

o Digital camera: Photometrics CoolSNAPcf

These are two quadrate bones of the Cretaceous Coelacanth Mawsonia lavocati

it is known that both the Abelisauridae and the Dromaeosauridae are present there

Parent taxon: Micrasteridae according to A

22075 - Superb 5.88 Inch OPHIURA SP Brittlestar Upper Ordovician Ktaoua Fm Mawsonia (Coelacanth) United States (4: MissouriBeautiful 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.