Authors	Year	Title
Barskov, Simakov & Alekseev	1984	Devonian-Carboniferous transitional deposits of the Berchogur section, Mugozhary, USSR (Preliminary report). Courier Forschungsinstitut Senckenberg, 67: 207-230, fig.1-7, pl.1-8; Frankfurt a.M.
Bogoslovsky	1987	Ammonoidei.-In: V.A.Maslov [ed.]: Fauna i biostratigrafiya pogranichnykh otlozheniy Devona i Karbona Berchogura (Mugodzhary). 52-58, pl.5,6; Moskva: Nauka
Kuzina	1985	K revizii roda Imitoceras (Ammonoidea). Paleontologicheskiy Zhurnal, 1985 (3): 35-48, fig.1-4, pl.3; Moskva.