This is a 2.4″ wide, Middle Jurassic club urchin (Gymnocidaris koechlini) fossil from Boulemane, Morocco. All of the spines have been prepared individually from the limestone it was found in and mounted in a lifelike position. These urchins with spines are always composites because the spines break off from the body very quickly after they die. It’s a very aesthetically pleasing and impressive fossil.
It comes with an acrylic display stand.
















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