Huang and Li 1990 - New progress in the study on Permian Ammonoid biostratigraphy in Guangxi

Lilang 1981 - Early Permian cephalopods from northwestern Gansu and western inner Mongolia

Mu 2011 - Ammonoid faunas around the early and middle Permian boundary in China and their biostratigraphic implications

Pan 1983 - A new genus of coiled Nautiloid fossil from lower Permian Qixia formation of Sichuan province

Shan [?] - Permian cephalopod fossils in northern and eastern Guangdong and their significance for stratigraphic division

Shan 1987 - A new species of Ammonite from Tonglu. Paratongluceras gaoyaoense sp. nov.

Sheng and Liu [?] - An early Permian Ammonite fauna in the Jiajia region of Tibet

Sheng  [?] - Early Permian Ammonites facies strata in the Yarlung Tsangpo river region, Tibet

Sheng 1988 - New material of early Permian Ammonoids from Xizang and Qinghai

Sheng 1989 - Early Permian Ammonites from the Juripu formation, Zhongba, Tibet

Sheng 1995 - An early Permian Ammonite fauna in Yangchun area, Guangdong

Xi [?] - Molluscas fossils from the early Permian Gufeng formation in Guichi Anhui province

Zhang et al. 2009 - Sequence and regional comparison of the upper Permian-lower Triassic bottom Ammonite fauna. Sequence and its region in Rencunping, Sangzhi County, Hunan Province

Zhao and Zheng 1977 - Late Early Permian Ammonites in western Zhejiang and northeastern Jiangxi

Zhao 1954 - Permian cephalopod fossils from Tanjiashan, Hunan

Zhao 1966 - Permian Ammonites layers in southern China

Zhao 1980 - Origin, classification, evolution and distribution of the family Cyclolobidae

Zheng 1982 - Late Permian early Ammonites from Yichun, Jiangxi

Zhou 1979 - Distribution of the early Permian Pseudohalorites ammonite group in Hunan and description of several new genera and species

Zhou 1987 - First discovery of Asselian Ammonoid fauna in China

Zhou 1988 - Early Permian Artinskian Ammonites and biostratigraphy in south China

Zhu and Zheng 1988 - Early Permian Ammonites from Honggeermiao, Abaga, Banner, Inner Mongolia