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.
Ruan	1984	Some Devonian and Carboniferous ammonoids from Xizang. Acta Palaeontologica Sinica, 23 (5): 597-604, fig.1-4, pl.1; Peking.
Ruzhencev & Bogoslovskaya	1971a	Namiurskii etap v evoliutsii ammonodei. Rannenamiurskie ammonoidei. Trudy Paleontologicheskogo Instituta Akademiya Nauk SSSR, 133: 1-382, fig.1-89, pl.1-40; Moskva.