	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.
	Yang	1978	[On the Lower and Middle Carboniferous Subdivisions and Ammonoids of Western Guizhou.] [In Chinese.] Professional Papers of Stratigraphy and Palaeontology, 5: 143-200, pl.40-46, Peking (Geological Publishing House).