These images are of what appears to be an Ichthyocrinus subangularis Hall crinoid calyx fossil. The fossil dates to the Middle Silurian ...

This image is of an ammonite cross cut section on display at the British Natural History Museum in London England. The creature was call...

This fossil is Rhodophyte (red) algae. It was found in the siltstone facies of Salem Limestone of Hardin County Kentucky USA. The plant d...