Here is a spine of the see urchin Paracidaris florigemma from the Oxfordian of France. Sometimes are isolated spines like this been mounted on a capsule of Paracidaris as a assambled specimen, now with spines. Not every time this would be told to the potential buyer of such fossils. | |||
Location: | Trouville, Dép. Calvados, France | ||
Fossil Size : | about 13 mm long | ||
Age: | Upper Jurassic, Oxfordian (about 150 Ma) |