	Authors	Year	Title
	Andrianov	1985	Permskie i nekotorye kamennougol'nye ammonoidei Severo-Vostoka Azii. Novosibirsk Izdatel'stvo Nauka, Sibirskoe Otdelenie, 1985: 1-180, fig.1-54, pl.A,B,1-21; Novosibirsk.
	Boardman, Work & Mapes	1994	Revision of the family Shumarditidae Plummer & Scott, 1937. Kansas Geological Survey Bulletin, 232: 48-56, figs.23-26.