This picture is of a Harpes naumanni (Barrande,1852) trilobite fossil. It was found in Lodenitz, Bohemia. The fossil dates to Silurian Per...

This picture is of a Trinucleus concentricus (Eaton,1832) trilobite fossil. It was found in Caer Caradoc (Grande-B.). The fossil dates to ...

  Eucalyptocrinites crassus (Hall, 1863) crinoid stem fossil found in the Waldron Shale of Clark County, Indiana USA. The crinoid existed i...