On the south side of the Bishop Springs Anticline the
Jensen Member, Mcj, of the Chainman Shale is exposed. Fossils
of the Paracravenoceras barnettense fauna, Pb, and the
"Eosyngastrioceras" hesperium, Eh, fauna occur here. The two
ridges in the background are the Chevron Ridge composed of the Permian,
Pennsylvanian, Mississippian Ely Limestone, PMe. And
the lighter Plympton Ridge, composed of Permian, Pu, age rocks.
Fossil Cephalopods of the P. barnettense
fauna
Fossil Cephalopods of the "E." hesperium fauna