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苏皖地区下二叠统孤峰组4条剖面中含有极其丰富的放射虫化石，经鉴定计9属27种.它们主要由阿尔拜虫类albaillellids，球形多囊虫类sphericalpolycystine和十字多囊虫类stauraxonpoly-cystine组成，并且可以划分成3个组合带，即Pseudoalbaillellafusiformis-Plongtanensis，FOlli-cucullusmonacanthus和Ruzhencevispongusuralicus-FOllicucullusscholasticus组合带.同时根据这3个组合带化石的分布，进行了这4条剖面的地层对比，并与国内外时代大致相当的放射虫组合带进行了比较，还讨论了这3个组合带的时代另外，还根据放射虫岩的结构构造特征、生物组合特征及古地磁料，认为这一地区放射虫岩可能是上升流形成的沉积
The four sections of the Jufeng Formation of the Lower Permian in the Jiangsu-Anhui area contain extremely rich radiolarian fossils, of which 9 genera and 27 species have been identified. They are mainly composed of albaillellids, sphericalpolycystine, Stauraxonpoly-cystine, and can be divided into three combinations: Pseudoalbaillellafusiformis-Plongtanensis, FOlli-cucullusmonacanthus and Ruzhencevispongusuralicus-FOllicucullusscholasticus.According to the distribution of these three assemblages, And compared with radiolarian assemblages roughly similar in age at home and abroad. The age of these three assemblages was also discussed. In addition, based on the structural features, biological assemblages and paleomagnetism of radiolarian rocks, Radiolarian rocks in the area may be the result of upwelling deposition