	Authors	Year	Title
	Liao	1978	Subclass Ammonoidea.[In Chinese]. Atlas of the Paleontology of Southwest China, Guizhou Province Part 2: Carboniferous-Quarternary: 380-439, pl.130-141; Beijing.
	Zheng	1981	Uppermost Permian (Changhsingian) ammonoids from Western Guizhou. Acta Paleontologica Sinica, 20 (2): 107-114, fig.1-6, pl.1-3; Beijing.