The Caritodens demissa (Conrad, 1842) pelecypod fossil found in Jefferson County, Indiana USA (near Madison). Fossil dates to the Ordovic...

These pictures show what appears to be an Elaeacrinus verneuili (Römer [aka Roemer], 1851) blastoid fossil. This specimen is partially embe...

  Here is an image of an unidentified spiny crinoid stem fossil. It was found on a tombstone at St. Michael's Cemetery in Louisville, Ke...