	Authors	Year	Title
	Frest, Glenister & Furnish	1981	Pennsylvanian--Permian Cheiloceratacean Ammonoid Families Maximitidae and Pseudohaloritidae. Journal of Paleontology, 55, Suppl. 3: 1-46, fig.1-19, pl.1-7; Tulsa, Okla.
	Liang & Guo	1982	Cephalopoda. Paleontological Atlas of East China. Volume of Late Paeozoic: 257-307, fig.1-90, pl.103-118; Beijing.
	Xu	1979	Late Lower Permian strata and ammonoids in Central Guangdong. [In Chinese]. Contributions to Stratigraphy and Palaeontology, Yichang Institute of Geology and Mineral Resources 1979: 34-45, 3 fig., 1 pl.
	Zhao & Zheng	1977	The Permian ammonoids from Zhejiang and Jiangxi. Acta Palaeontologica Sinica, 16 (2): 217-254, 20 figs., pl.1-5; Beijing.