Acritarchs from Mesoproterozoic Chitrakoot Formation, Semri Group, Chitrakoot Area, Central India

Black and dark brown chert lenses of non-stromatolitic Glauconitic Limestone Member of Chitrakoot Formation belonging to Lower Vindhyan and exposed in the southern portion of the Sangrampur hill section, have yielded organically well preserved acritarchs and filamentous microfossils in petrographic thin sections. Inventory of the acritarch Cymatiospheroides kullingii and unnamed form 'A' contributes to the acritarch database of Vindhyan microhiota.