Zhuang, S. (1989). A study on stalactotheca in spirotheca of Fusulinids and some new genera and species with stalactotheca. ??????? - Acta Micropalaeontologica Sinica. 6(4): 357-371. page(s): p. 360 (Chinese), p. 367 (English), pl. 1, figs. 4-9, pl. 2, figs. 1-4 (holotype pl. 1, fig. 4a).