Authors Year Title
Delépine 1940a Les goniatites du Dinantien de la Belgique.
MuseĆ©  royal d`histoire naturelle Belgique, 91: 1-91, pl.1-5;
Shkolin 2000 O nizhnekamennougol'nykh ammonoideyakh Podmoskovskogo Basseina. In: Zonal'nye podrazdeleniya karbona obshchei stratigraficheskoi shkaly Rossii. (In Russian).
Materialy Vserossiiskogo Sovechaniya [Zonal Carboniferous subdivisions of the General Stratigraphic Scale of Russia], p. 104-105, Ufa (Gilem).