	Authors	Year	Title
	Miller	1930	A new ammonoid fauna of Late Paleozoic age from Western Texas. Journal of Paleontology, 4 (3): 383-412, pl.38,39; Tulsa, Oklahoma.
	Moore	1950	The Genus Sudeticeras and its Distribution in Lancashire and Yorkshire. Journal of the Manchester Geologists Association., 1950 (2): 31-50, pl.1-3; Manchester.