Salut! These pictures show gastropod fossils found in Romania. They are from a region that use to be the Sarmatic Sea which I think is Mio...

Pictured are several Silurian Waldron Shale fossils. It appears to be the fossilized habitat of a Cornulites proprius attached to the gas...

All these fossils were found in the Waldron Shale of Clark County, Indiana. All contain pyrite or marcasite minerals. These first two pict...