This Specimen has been sold.
1.15" Jurassic Echinoid (Collyrites) Fossil - France
This is a fossil urchin of the species Collyrites elliptica, from the Middle Jurassic period - Callovian stage. Portions of the urchin shell are broken and required some gap fill restoration, hence the reduced price.
Sea urchins are a type of echinoderm which are still living relatively unchanged today. They live at the bottom of soft ocean floors and have long spines protruding from their central body. They move along the bottom of the ocean using many small feet while feeding on various plant and animal matter.