This pyrite gastropod fossil has well defined ridges that make it easier to identify. It appears to be a  Bellerophon . It was found in a...

The picture displayed is of an  Iereopsis polystoma  sponge fossil at the Museo di Paleontologia at Sapienza University of Rome Italy. Cr...

This gastropod fossil is interesting as it pyrite embedded in a dark shale. It appears to be a Trepospira . It was found in a coal mine a...