	Authors	Year	Title
	Bond & Saunders	1989	Sublethal injury and shell repair in Upper Mississippian ammonoids. Paleobiology, 15 (4): 414-428, fig.1-6, tab.1-4; Davis, Cal.
	Gordon	1965	Carboniferous Cephalopods of Arkansas. Professional Papers, U.S. Geological Survey, 460: 1-322, fig.1-96, pl.1-32; Washington. [imprint 1964].
	Manger & Quinn	1972	Carboniferous dimorphoceratid ammonoids from northern Arkansas. Journal of Paleontology, 46: 303-314, fig.1-4, pl.1-2; Tulsa, Okla.
	McCaleb, Quinn & Furnish	1964	The ammonoid family Girtyoceratidae in the Southern Midcontinent. Circular Oklahoma geological Survey, 67: 1-41, 8 figs., pl.1-4; Norman, Okla.
	Saunders	1966	New Goniatite Ammonoid from the Late Mississippian of Arkansas. Oklahoma Geological Notes, 26 (2): 43-48, fig.1, pl.1; Norman, Okla.
	Saunders	1971	The Somoholitidae: Mississippian to Permian ammonoids. Journal of Paleontology, 45 (1): 100-118, fig.1-6, pl.23-24; Tulsa, Okla.
	Saunders	1973	Upper Mississippian Ammonoids from Arkansas and Oklahoma. Special Papers of the Geological Society of America, 145: 1-110, fig.1-32, tab.1-8, pl.1-8; Boulder Colorado.
	Saunders, Manger & Gordon	1977	Upper Mississippian and lower and middle Pennsylvanian ammonoid biostratigraphy of Northern Arkansas. Oklahoma Geolological Survey Guidebook 18: 117-137, fig.1-2, tab.1-2, pl.1-6.