	Authors	Year	Title
	Furnish & Glenister	1971	Permian Gonioloboceratidae (Ammonoidea). Smithsonian Contributions to Paleontology, 3: 301-312, fig.1-3, pl.1-2; Washington.
	Unklesbay	1962	Pennsylvanian Cephalopods of Oklahoma. Bulletin of the Oklahoma Geological Survey, 96: 1-150, fig.1-16, tab.1-2, pl.1-19; Norman.