	Authors	Year	Title
	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.
	Smith	1903	The Carboniferous Ammonoids of America. Monography, U.S. geological Survey, 42: 1-211, pl.1-29; Washington.