quoted in Lu, Chang et al. , 1974, in Zhongguo Kexue Yuan, Nanking Dizhi Gushengwu Yanjlusuo [Acad. Sinica, Nanking Inst. Geol. Palaeont. (Ed. )], Xinan diqu di gushengwu tuce. [A handbook of the stratigraphy and palaeontology in south China. ] Science Pr
