This picture is of the  Echinlampas leymeriei  (Cotteau, 1863) sea urchin fossil. It existed in the Eocene Period and was found in Spain ...

This picture is of the  Pliotoxaster paquieiri (Lamber, 1919) sea urchin fossil. It existed in the Cretaceous Period and was found in Spa...

Here are some pictures of crinoid calyx cups of the  Apiocrinites elegans . They were found in Albarracin, Spain. The creatures date to t...