	Authors	Year	Title
	Kuzina	1980	Saurskie ammonoidei. Trudy Paleontologicheskogo Instituta Akademiya Nauk SSSR, 181: p.1-108, fig.1-29, pl.1-9; Moskva.
	Liang & Zhu	1988	Early Carboniferous cephalopods of Baoshan, Yunnan. Acta Paleontologica Sinica, 27 (3): 288-302, fig.1-18, pl.1-4; Beijing.