Authors	Year	Title
Gordon	1969	An Early Reticuloceras Zone Fauna From the Hale Formation in Northwestern Arkansas. Geological Survey Professional Paper 613-A: A1-A21, 12 text-fig., 2 pl. Washington. [imprint 1968].
Manger & Saunders	1980	Lower Pennsylvanian (Morrowan) ammonoids from the North American midcontinent. Journal of Paleontology, 54, Suppl.(3): 1-56, fig.1-21, pl.1-6, tab.1-10; Tulsa, Okla.
Quinn	1966	Genus Reticuloceras in America. Oklahoma Geological Notes, 26 (1): 13-20, fig.1-4; Norman.