Authors Year Title
Bisat 1957 Upper Viséan goniatites from the Manifold Valley, North Staffortshire.
Palaeontology, 1: 16-21, fig.1-6, pl.3,4; London.
Kuzina & Yatskov 1999 Nizhne- i srednekamennougol#nye ammonoidei Novoi Zemli.
Trudy Paleontologicheskogo Instituta, Rossiiskaia Akademiia Nauk, 275: 1-144, 16 pls., 72 figs., Moskva.
Kuzina 1999 Biostratigraphic Distribution of Lower Carboniferous Ammonoids in Northern Russia.
In: Olóriz,F. & Rodríguez-Tovar,F.J., Advancing Research on Living and Fossil Cephalopods, 505-519, 7 figs., New York.