Authors Year Title
Kuzina 2000 Ammonoidei iz pogranichnykh Turneisko-Vizeiskikh otlozhenii. [Russian, with English summary: Ammonoids from the Boundary Tournaisian-Viséan Beds of the Pai-Khoy and the South Urals].
Paleontologicheskii Zhurnal, 2000 (5): 16-24, 4 figs., pl.1, Moskva.