	Authors	Year	Title
	Malinky & Mapes	1982	A new ferganoceratin ammonoid from the Mississippian (Lower Chesterian) of Arkansas. Journal of Paleontology, 56 (2): 308-314, 1fig., 1tab., 1pl.; Lawrence, Kansas.
	Popov	1975	Ammonoidea (Ammonoidei). In: Paleontologicheskii Atlas kamennougol'nykh otlozhenii Urala. [In Russian]. Trudy VNIGRI 383: 111-130, pls.35-44, Leningrad (Nedra).
	Ruzhencev & Bogoslovskaya	1971a	Namiurskii etap v evoliutsii ammonodei. Rannenamiurskie ammonoidei. Trudy Paleontologicheskogo Instituta Akademiya Nauk SSSR, 133: 1-382, fig.1-89, pl.1-40; Moskva.