07872 - Superb 1.81 Inch OPHIURA SP Brittlestar Upper Ordovician Ktaoua Fm Native gold stratigraphy and vertebrate assemblage
Yard notes & kiln story
Description
stratigraphy and vertebrate assemblage
Geyer 1993 (trilobite)
Hyposaurinae
https://nmgs
Calymene sp: Fossilworks - Paleobiology Database
07872 - Superb 1.81 Inch OPHIURA SP Brittlestar Upper Ordovician Ktaoua Fm Native gold stratigraphy and vertebrate assemblageBeautiful 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.