	Authors	Year	Title
	Gordon	1965	Carboniferous Cephalopods of Arkansas. Professional Papers, U.S. Geological Survey, 460: 1-322, fig.1-96, pl.1-32; Washington. [imprint 1964].
	Miller & Gurley	1896	New species of Palaeozoic invertebrates from Illinois and other states. Bulletin of the Illinois State Museum of Natural History, 11: 1-50, pl.1-5; Springfield, IL.
	Miller & Furnish	1940a	Studies on Carboniferous ammonoids: parts 1-4. Journal of Paleontology, 14: 356-377, fig.1-17, pl.45-49; Tulsa, Okla.
	Miller & Unklesbay	1943	The siphuncle in Late Paleozoic amonoids. Journal of Paleontology, 17 (1): 1-25, fig.1-9, pl.1-5; Tulsa,Oklahoma.
	Miller & Youngquist	1948	The cephalopod fauna of the Mississippian Barnett Formation of Central Texas. Journal of Paleontology, 22: 649-671, fig.1-3, pl.94-100; Tulsa, Okla.
	Pareyn	1961	Les Massifs Carbonifères du Sahara Sud-Oranais. Tome II. Paléontologie stratigraphique. Publications Centre Rech. Sahariennes, Ser. Géologie, 1: 1-244, fig.1-27, pl.1-28; Paris.
	Smith	1903	The Carboniferous Ammonoids of America. Monography, U.S. geological Survey, 42: 1-211, pl.1-29; Washington.
	Youngquist	1949a	The cephalopod fauna of the White Pine shale of Nevada. Journal of Paleontology, 23: 276-305, fig.1-3, pl.59-64; Tulsa, Okla.