Authors Year Title
Librovitch 1940 Ammonoidea iz kamennougol'nykh otlozhenii Severnogo Kazakhstana.
Paleontologiia SSSR, 4 (9,1): 1-395, fig.1-78, pl.1-25; Moskva.
Librovitch 1941 Otryad Ammonoidea. In: Atlas rukovodyashchikh form iskopaemykh faun SSSR, t. IV. Nizhniy otdel kamennougol'noy sistemy.
Gosgeolizdat: 137-153, fig.13-43, pl.34-40; Moskva-Leningrad.
Monakhova 1955 Nekotorye novye dannye po faune goniatitov i stratigrafii nizhnikh svit uglenosnoi tolshchi Karagandinskogo basseina.
Trudy Laboratorii geologii uglia Akademia Nauk SSSR, 3: 96-115, 10 text-figs., pl.1-3.
Sheng 1984 Lower Carboniferous ammonoid faunule from the Zhifang area, Xinjiang. [In Chinese, with English abstract].
Acta Geologica Sinica, 1984 (4): 284-292, fig.1-2, pl.1.