最近,笔者通过分析云南晋宁梅树村剖面及四川峨嵋麦地坪剖面的标本,在梅树村剖面第13层底部的生物碎屑磷块岩(筇竹寺组,玉案山段;罗惠麟等,1982)及麦地坪剖面第 49层底部的含磷细晶白云岩砾石组成的同生砾石层(九老洞组中段;殷继成等,1980)中, 均发现了 Tannuolina 和 Lapworthella 等化石。其中梅树村剖面第13层底部化石有:Ta- Recently, by analyzing the samples of Meishu Cunnian in Jinning, Yunnan Province and the Maipingshan profile in Emei, Sichuan Province, bioclastic phosphate rock (Qiongzhusi Formation, Jushan Mountain, Et al., 1982), and syngenetic gravel layers of phosphate-bearing fine grained dolomite gravel at the bottom of the 49th layer in the Maipingpe section (mid-Jiuludong Formation; Yin Jicheng et al., 1980). Both Tannuolina and Lapworthella fossils were found. Among the fossils at the bottom of layer 13 of Mei Shu Cun section are: Ta-