Whether the distributive province of Shangxi Group metamorphosed strata in southern Anhui is an old land or an orogenic belt is quite controversial by geologists

but the age of the metamorphosed strata is very important to solve this problem. The scolecodonts and acritarchs reported here are new discoveries . They provide a direct evidence to the recognition of their ages and in the meantime some problems about the country rock ages determinated by the isotopic ages of intrusive bodies are presented. This discovery possesses important significance in the study of tectonic evolution of this area.