	Authors	Year	Title
	Kuzina & Lazarev	1994	Novye rannekamennougol'nye ammonoidei Mongolii. [New Early Carboniferous ammonoids from Mongolia]. Paleontologicheskii Zhurnal 28 (1A): 157-171, 5 text-figs., pl.7, Moskva.
	Ruan	1981b	Carboniferous Ammonoid faunas from Qixu in Nandan of Guangxi. Mem. Nanjing Inst. Geol. Palaeont., Acad. Sinica, 15: 153-232, fig.1-89, pl.1-15; Nanjing.