Here is an image of a nice plate of fossils found in the Lexington Limestone of Franklin County, Kentucky USA. There are at least 8  Tent...

This picture shows the feeding scoop or hypostome of an  Isotelus sp.  trilobite fossil (not complete). It was found in the Kope Forma...

This fossil is what is left of a feeding scoop or hypostome of the Arctinurus trilobite. Long ago upon the seafloor that is now Clark Cou...