This image is of a Cladophlebis denticulata (Brongn, 1828) plant fossil. The plant existed in the Jurassic Period. Fossil was discovered i...

These pictures show an unidentified shark tooth fossil. It was found in the Salem Limestone of Hardin County, Kentucky USA. The fossils dat...

  These pictures show a Petalodus (Hall, 1858) shark tooth fossil. They were found in the Salem Limestone of Hardin County, Kentucky USA....