Xing Yusheng, 1982
From dinoflaj3
Xing Yusheng, 1982: Microflora of the Sinian System and Lower Cambrian near Kunming, Yunnan and its stratigraphical significance. Acta Geologica Sinica, v.56, no.1, p.42-49, pl.1-2. (In Chinese with English summary.)