	Authors	Year	Title
	Librovitch	1939	Klass Golovonogie - Cephalopoda. Otriad Ammonoidea. In: Atlas rukovodiashchikh form iskopaemykh faun SSSR, tom 5. Srednii i verkhnii otdely kamennougol'noi sistemy. Tsentralnii Nauchno-issledovatel'skii Geologo-razvedochnii Institut (TsNIGRI), p.134-141, fig.25-37, tabl.34, Leningrad.
	Popov	1970	Ammonoidei. In: Stratigrafiya kamennougol'nykh i permskikh otlozhenii Severnogo Verkhoyan'ya. Trudy Nauchno-issledovatel'skogo instituta Geologii Arktiki, 1970: 113-140, fig.5-27, pl.13-19; Leningrad.
	Popov	1975	Ammonoidea (Ammonoidei). In: Paleontologicheskii Atlas kamennougol'nykh otlozhenii Urala. [In Russian]. Trudy VNIGRI 383: 111-130, pls.35-44, Leningrad (Nedra).