Authors	Year	Title
Liang & Wang	1988	Carboniferous Cephalopods of Xinjiang, NW China. In: Wiedmann,J. & Kullmann,J. (eds.), Cephalopods - Present and Past, 553-575, 2 text-figs., 1 tabl., 6 pls., Stuttgart.
Matthews	1970	A new cephalopod fauna from the Lower Carboniferous of east Cornwall. Palaeontology, 13 (1): 112-131, fig.1-6, pl.25-28; London.
Termier & Termier	1950	Paléontologie Marocaine. II. Invertébrés de l'ére Primaire. Fascicule III. Mollusques. Service géologique Protect. Rep. franc. Maroc, Notes et Mém., 78: 1-246, pl.123-183; Paris.