The trilobites such as Triarthrus eatoni, Cryptolithus tessellatus, and Proetidella parviusculus have been identified in the Kope, and the Ohio State Fossil, Isotelus maximus, can most likely be found in it.
The specimens of T. eatoni that are found in the Beecher's Trilobite Bed, Rome, New York area are exquisitely preserved showing soft body parts in iron pyrite.