Xiao, W.; Wang, H.; Zhang, L.; Dong, W. L. (1986). ??????????????? - Early Permian stratigraphy and fauna in southern Guizhou. ?? : ??????? - Guiyang: The People's Publishing House of Guizhou. 1-364. page(s): p. 146 pl. 19 figs. 1-4, 10 (holotype fig. 3).