Abstract
Acritarchs and prasinophytes representing 39 species in 26 genera are identified from the Early–Middle Ordovician Meitan Formation in the Guanyinqiao section, Qijiang, Chongqing in South China. This palynomorph assemblage is dominated by the genera Polygonium (35.2%), Striatotheca (15.2%), Stelliferidium (12.5%) and Leiosphaeridia (10.2%) showing similarities to assemblages from deflexus–suecicus graptolite biozone (Meitan Formation, upper Floian–lower Dapingian) in the Honghuayuan section and can be correlated to the contemporaneous global acritarch assemblages. The composition of the acritarch assemblage from the Meitan Formation of the Guanyinqiao section implies an inner-shelf depositional environment for the studied successions.
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