	Authors	Year	Title
	Korn, Ebbighausen & Bockwinkel	2003	The A-mode sutural ontogeny in prolecanitids ammonoids. [Korn,D., Ebbighausen,V., Bockwinkel,J. & Klug,C.] Palaeontology 46 (6): 1123-1132, 8 fig., London.
	Korn & Titus	2011	Goniatites Zone (middle Mississippian) ammonoids of the Antler Foreland Basin (Nevada, Utah). Bulletin of Geosciences 86(1), 107–196 Prague. ISSN 1214-1119
	Miller & Furnish	1940a	Studies on Carboniferous ammonoids: parts 1-4. Journal of Paleontology, 14: 356-377, fig.1-17, pl.45-49; Tulsa, Okla.
	Shigeta, Zakharov & Mapes	2001	Origin of the Ceratitida (Ammonoidea) inferred from the early internal shell features. Paleontological Research, 5 (3): 201-213, 7 fig.
	Spinosa, Furnish & Glenister	1975	The Xenodiscidae, Permian ceratitoid ammonoids. Journal of Paleontology, 49 (2): 239-283, fig.1-22, tab.1-5, pl.1-8.