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Early Neoproterozoic (Tonian) palaeontology is hampered by the restricted Precambrian strata and widely spreaded metamorphism during the geological history,although it is crucial for the evolution of early life on the earth.This further hinders the biostratigraphic subdivision and correlation of early Neoproterozoic strata.As an aim to solve those problems in some extent,here we carried out a micropalaeontologic investigation of the Tonian Gouhou Formation in Huaibei region,North China.