Michelinoceras (Foeste, 1932) cephalopod fossil shown in the pictures. Fossil was found in Floyd County Indiana USA. The fossil dates to th...

  Paraconularia (Sinclair, 1940) with Cypricardinia (Hall, 1860) pelecypod fossils shown in the pictures. Fossils were found in Floyd County...

This image is of  Hexanchus griseus (Bonnaterre, 1788) fossil shark teeth on display at Mace Brown Museum of Natural History (August 2017)....