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...

This fossil is somewhat rare because it was found at a depth of 60-250 meters underground. The fossil was situated above the coal seam so...

The image shown is of a  Cnemidium pertuscum Reuss   sponge fossil at the Museo di Paleontologia at Sapienza University of Rome Italy. An...