	Authors	Year	Title
	Drahovzal & Quinn	1972	A new Goniatites species from the Chesterian of Arkansas. Journal of Paleontology, 46: 581-590, fig.1-6; Tulsa, Okla.
	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, 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.