	Authors	Year	Title
	Chao, Chang & Liang	1962	[Lower and Middle Carboniferous Cephalopoda.] [In Chinese]. Handbook of Index Fossils of the Yangtse Area, p.103, 108, 133, pl.55, 57-58, 69.
	Chao & Liang	1974	[Carboniferous Ammonoids]. In: Handbook of the Stratigraphy and Paleontology in Southwest China. [In Chinese]. Nanjing Institute of Geology and Palaeontology, Academia Sinica, 273-274, pl.140, Nanjing.
	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.