07174 - Superb 3.31 Inch OPHIURA SP Brittlestar Upper Ordovician Ktaoua Fm Symphysops Mosasauridae Gervais
Yard notes & kiln story
Description
Mosasauridae Gervais
The size of this fragment of Onchopristis rostral bone is probably only about a third of its original length
Beautiful specimen
See also Arkell et al
Pseudocryphaeus
07174 - Superb 3.31 Inch OPHIURA SP Brittlestar Upper Ordovician Ktaoua Fm Symphysops Mosasauridae GervaisBeautiful 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.