	Authors	Year	Title
	Chao	1965	The Permian ammonoid-bearing formations of South China. Scientia Sinica, 14 (12): 1813-1826, fig.1-4, pl.1-2; Beijing.
	Zhao, Liang & Zheng	1978	Late Permian cephalopods of South China. Palaeontologica Sinica, 154, N.S.B,12: 1-194, fig.1-105, pl.1-34; Beijing.