	Authors	Year	Title
	Clarke & Swartz	1913	Cephalopoda [of the Upper Devonian of Maryland]. Maryland Geological Survey, Middle and Upper Devonian: 690-699, pl.51,52; Baltimore.
	House	1962	Observations on the ammonoid succesion of the North American Devonian. Journal of Paleontology, 36: 247-284, fig.1-15, tab.1-3, pl.43-48; Tulsa, Okla.
	House & Pedder	1963	Devonian goniatites and stratigraphical correlations in Western Canada. Palaeontology, 6: 491-539, fig.1-15, pl.70-77; London.
	House & Ziegler	1977	The Goniatite and Conodont sequences in the early Upper Devonian at Adorf, Germany. Geologica et Palaeontologica, 11: 69-108, fig.1-4, pl.1-6; Marburg.
	House, Kirchgasser & Price	1985	Goniatites from Frasnian (Upper Devonian) and adjacent strata of the Montagne Noire. [M.R.House, W.Kirchgasser, J.D.Price & Wade]. Herzynica, 1: 1-19, fig.1-14, pl.1-3;
	Kirchgasser	1975	Revision of Probeloceras Clarke, 1898 and related ammonoids from the Upper Devonian of Western New York. Journal of Paleontology, 49:58-90, fig.1-11, pl.1-3; Tulsa,Okla.
	Ruan	1981a	Devonian and earliest Carboniferous Ammonoids from Guangxi and Guizhou. Mem. Nanjing Inst. Geol. Paleont. Academia Sinica, 15: 1-152, fig.1-102, pl.1-33; Beijing.
	Willard	1937	Cephalopods of the Tully Formation in Central Pennsylvania. Bulletin of the geological Society of America, 48: 1253-1255, pl.2 fig.12-14,19; New York.