This fossil appears to be a  Pleuronotus decewi (Conrad)   gastropod. It was found in the Jeffersonville Limestone of Jefferson County, K...

These fossils appear to be Deltablastus permicus blastoids found in the Sonnebait Formation of Timor. They date to the Permian Period. ...

These images are of an  Arachnophyllum mammillaire (Owen) colonial coral fossil. It was found in the Louisville Limestone of Jeffers...