These fossils appear to be Volutomorpha mutabilis gastropods (named by Wade 1926). They existed during the Cretaceous Period (about 70 m...

The Pterotrigonia thoracica  (Morton, 1834) pelecypod is the official state fossil of Tennessee. It existed during the Cretaceous Period (...

Here is a picture of what appears to be a  Strophodonta striata brachiopod fossil. The pyritized fossil is from the Silurian Period. It w...