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.
Leonova & Dmitriev 1989 Rannepermskie ammonoidei Yugo-Vostochnogo Pamira.
Trudy Paleontologicheskogo Instituta Akademiya Nauk SSSR, 235: 1-198, fig.1-79, pl.1-16; Moskva.
Ruzhencev 1949 Sistematika i evolyutsia semeystv Pronoritidae Frech i Medlicottiidae Karpinsky.
Trudy Palentologicheskogo Instituta Akademiya Nauk SSSR, 19: 1-206, fig.1-88, pl.1-17; Moskva.
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.
Shigeta, Zakharov & Mapes 2001 Origin of the Ceratitida (Ammonoidea) inferred from the early internal shell features.
Paleontological Research, 5 (3): 201-213, 7 fig.
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.