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在贵州台江中寒武世凯里组中发现了目前最古老的具节珊瑚藻类化石Paraamphiroasiniansisgen .etsp .nov ..该化石产于泥岩和页岩中 ,保存完好 ,具有钙化藻体 ,与其他以炭质薄膜形式保存的宏观藻类共生 ,并与西伯利亚早寒武世碳酸盐岩钙质藻类和震旦系陡山沱组磷化红藻有明显区别 ,鉴于以往报道的最古老具节珊瑚藻化石是白垩纪 ,这一发现对钙质藻类的系统发生和演化的研究会有一定意义
The oldest Cambrian coral algae fossil, Paraamphiroasiniansisgen. Etap. Nov, was found in the Middle Cambrian Carey Formation in the Taijiang Province of Guizhou Province. The fossil was produced in mudstone and shale well preserved with calcification algae, Macrocyclic macrophytes preserved in the form of thin films and symbiotic with the calcareous algae of the Early Cambrian carbonate rocks in Siberia and Sinophile Doushantuo Formation phospholipid red seaweeds. In view of the previously reported ancient festival coral algae fossils Is the Cretaceous, the discovery of calcareous algae phylogeny and evolution of research will have some significance