	Authors	Year	Title
	Ruan	1981a	Devonian and earliest Carboniferous Ammonoids from Guangxi and Guizhou. Mem. Nanjing Inst. Geol. Paleont. Academia Sinica, 15: 1-152, fig.1-102, pl.1-33; Beijing.
	Shen	1975	[Discovery of primitive ammonoids from Nandan of Guangxi and its stratigraphical significance.] [In Chinese]. Professional Papers of Stratigraphy and Paleontology, 1: 86-104, figs., pl.1-2; Peking.