Unidentified Mississippian Period Shark Tooth Fossil

This picture shows an unidentified fossil shark tooth. It was found in the Somerset Shale of the Salem Limestone of Hardin County Kentucky, USA. The fossil dates back to the Mississippian Period.

Thanks to Kenny for the pictures.

Loxonema yandellana Gastropod Microfossil

The microfossil in this picture appears to be a Loxonema yandellana gastropod (snail). It was found in the Somerset Shale of the Salem Limestone of Meade County, Kentucky, USA. The creature existed in the Mississippian Period. Field of view in picture is about 2 mm.

Thanks to Kenny for the picture.