	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.
	Kutygin	2006	Metodika izucheniya formy rakovin ammonoidei na primere Permskikh goniatitov Severo-Vostoka Aziii.[Russian with Engl. abstract: Methods for studying ammonoid shell shape (Example of Permian Goniatitida from northeastern Asia]. In:Contributions to current Cephalopod Research: Morphology, Systematics,Evolution,Ecology and Biostratigr., Kollektiv PIN, RAN, eds., 96-98, 6 fig., Moskva 2006.
	Ruzhencev	1961	Pervye ammonoidei iz Permskikh otlozheniy Verkhoyan'ya. Paleontologicheskiy Zhurnal, 1961 (2): 50-63, fig.1-10; Moskva.