	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.
	Yin	1935	Upper Palaeozoic ammonoids of China. Palaeontologia Sinica, Ser. B, 11 (4): 1-45, fig.1-10, pl.1-5; Beijing.