Authors	Year	Title
Elias	1938	Studies of Late Paleozoic ammonoids. Journal of Paleontology, 12 (1): 86-100, pl.19,20; Tulsa,Oklahoma.
Furnish & Glenister	1971	Permian Gonioloboceratidae (Ammonoidea). Smithsonian Contributions to Paleontology, 3: 301-312, fig.1-3, pl.1-2; Washington.
Miller	1932	A Pennsylvanian cephalopod fauna from South-Central New Mexico. Journal of Paleontology, 6 (1): 59-93, fig.1, pl.12,13; Tulsa, Oklahoma.