3.2" Wide Clypeaster Scillae - Sea Biscuits

This is a very 3D, 15 million year old fossil Echinoid of the species Clypeaster scillae from Retznei, Austria. The locality they were found is off limits, access and collecting prohibited.

Animals of the Clypeaster genus are more commonly referred to as "sea biscuits or cake urchins. The genus first appeared in the Late Eocene and survives until today.