[1] It preserves fossils dating back to the Moscovian Age of the Pennsylvanian Period.

[2] The Gobbler Formation consists of a lower section of 200–500 feet (61–152 m) of quartz sandstone and limestone and an upper section of over 1,000 feet (300 m) of shales and quartz sandstones.

The lower sandstone beds are well-sorted and the limestone includes black masses of chert.

[3] The Bug Scuffle Limestone Member contains parasequences 3–20 meters (9.8–65.6 ft) thick whose uppermost beds show isotopic evidence of subaerial exposure.

The Bug Scuffle Limestone Member is mostly sparsely fossiliferous, with occasional local concentrations of a variety of fossils including bryozoans, corals, crinoids, coralline algae, and foraminifera.