Authors Year Title
Liang & Guo 1982 Cephalopoda.
Paleontological Atlas of East China. Volume of Late Paeozoic: 257-307, fig.1-90, pl.103-118; Beijing.
Zhao & Zheng 1977 The Permian ammonoids from Zhejiang and Jiangxi.
Acta Palaeontologica Sinica, 16 (2): 217-254, 20 figs., pl.1-5; Beijing.