Authors Year Title
Sun 1939 The uppermost Permian ammonoids from Kwangsi and their stratigraphical significance.
40th Anniversary Papers of the National University of Peking, 35-49, 2 pl.
Xu & Wei 1977 Fossil Atlas of South-Central China, part 2, Cephalopoda. [In Chinese.]
Yichang Institute of Geology and Mineral Resources 1977:   p.537-582, pl.204-218, (Geological Publishing House).
Zhao, Liang & Zheng 1978 Late Permian cephalopods of South China.
Palaeontologica Sinica, 154, N.S.B,12: 1-194, fig.1-105, pl.1-34; Beijing.