	Authors	Year	Title
	Bogoslovskaya	1986	Ammonoidei. In: Atlas kharakternykh kompleksov Permskoi fauny i flory Urala i Russkoi platformy. Trudy, novaia seria, 331: 14-15, pl.37-59, (Nedra) Leningrad.
	Ruzhencev	1956	Nizhnepermskiye ammonity Yuzhnogo Urala. II. Ammonity Artinskogo yarusa. Trudy Paleontologicheskogo Instituta Akademiya Nauk SSSR, 60: 1-275, fig.1-97, pl.1-39; Moskva.
	Zakharov	1984	Ontogenez permskikh Pronoritidae i Medlicottiidae i problema proiskhozhdeniya tseratitov. In: Sistematika i evolyutsiya bespozvonochnykh Dal'nego Vostoka; DVNTs AN SSSR, 1984: 23-40, fig.1-4, pl.2-8; Vladivostok.