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.
Chernov 1939 Otryad Ammonoidea. Ammonei.
Atlas rukovodyashchikh form iskopaemykh faun SSSR, 6, Permskaya sistema: 160-190, fig.39-103, pl.41-45; Leningrad, Moskva.
Kullmann & Wiedmann 1970 Significance of sutures in phylogeny of Ammonoidea.
University of Kansas, Paleontological Contributions, 47: 1-32, fig.1-16; Lawrence, Kansas.
Ruzhencev 1933 O nekotorykh nizhnepermskikh ammonoideyakh Aktyubinskogo rayona.
Byulleten' Moskovskaya obshchestva ispytatelei prirody, otdelenie geologii, 11 (2): 164-180, fig.1-6, pl.4; 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.
Wiedmann & Kullmann 1981 Ammonoid sutures in ontogeny and phylogeny.
In: M.R.House & J.R.Senior, eds., The Ammonoidea. The evolution ..., The Systematics Association Special volume No.18: 215-255, 22 text-figs., London.