	Authors	Year	Title
	Furnish & Knapp	1966	Lower Pennsylvanian fauna from Eastern Kentucky; Part 1, Ammonoids. Journal of Paleontology, 40: 296-308, fig.1-5, pl.35; Tulsa, Okla.
	Lemosquet, Conrad & Manger	1985	Ammononoids. [In: M.Diaz, R.H.Wagner, C.F. Winkler Prins & L.F.Granados, eds., The Carboniferous of the World, 2.] International Union of Geological Sciences Publication, 20: 367-372, pls.7-10, Madrid.
	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.
	Manger, Miller & Mapes	1992	Age and Correlation of the Gene Autry Shale, Ardmore Basin, Southern Oklahoma. Oklahoma Geological Survey Circular, 94: 101-109, pl.1, 3 figs.
	McCaleb	1968	Lower Pennsylvanian Ammonoids from the Bloyd Formation of Arkansas and Oklahoma. Special Paper of the geological Society of America, 96: 1-123, fig.1-27, pl.1-12; Boulder,Colorado.
	Nassichuk	1975	Carboniferous ammonoids and stratigraphy in the Canadian Arctic Archipelago. Bulletin of the Geological Survey of Canada, 237: 1-240, fig.1-57, tab.1-33, pl.1-18; Ottawa.
	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.