†Veragraulos Bognibova, Koptev, Mikhailova, Poletaeva, Romanenko, Romanenko, Semashko, Tomashpolskaya, Fedyanina & Chernysheva 1971

Bognibova, Koptev, Mikhailova, Poletaeva, Romanenko, Romanenko, Semashko, Tomashpolskaya, Fedyanina & Chernysheva 1971. [Trilobites of Amginsk age of the Altai-Sayan region]. Chernysheva, N. E. [Ed.].[The Amginsk Stage in the Altai-Sayan Region]., 1971: Unpaginated. Chapter pagination: 82-263, 25 pls.