	Authors	Year	Title
	Furnish & Glenister	1971	Permian Gonioloboceratidae (Ammonoidea). Smithsonian Contributions to Paleontology, 3: 301-312, fig.1-3, pl.1-2; Washington.
	Miller & Owen	1939	An ammonoid fauna from the Lower Pennsylvanian Cherokee formation of Missouri. Journal of Paleontology, 13: 141-162, fig.1-9, pl.17-20; Tulsa, Oklahoma.