Authors Year Title
Kuzina & Konovalova 2004 Novye ammonoidei iz pogranichnykh Turneisko-Vizeiskikh otlozhenii na reke Kozhim (Pripolianyi Ural). [New Ammonoids from the Tournaisian-Visean Boundary Beds on the Kozhim River (Subpolar Ural Mountains)].
Paleontologicheskii Zhurnal, 2004 (1), 10-18 [10-19], 5 fig., pl.3, Moskva.
Riley 1996 Mid-Dinantian ammonoids from the Craven Basin, northwest England.
Special papers in Palaeontology, 53: 1-87, 8 pls., 51 text-figs., London (Palaeontological Association).