	Authors	Year	Title
	House	1978	Devonian amonoids from the Appalachians and their bearing on international zonation and corelation. Special Papers Paleontology, 21: 1-70, fig.1-12, pl.1-10; London.
	House, Gordon & Hlavin	1986	Late Devonian ammonoids from Ohio and adjacent states. Journal of Paleontology, 60: 126-144, fig.1-7, tab.1-3; Tulsa, Okla.