Abstract:The diversed spinose acritarchs have been reported in the Doushantuo black chers from eastern Yangtze Gorges. Recently, writer has restudied the spinose acritarchs in thin sections of the Doushantuo Formation. The microfossils are three-dimensionally preserved in a structurally little altered condition. The assemblage includes Filis phaeridium, Baltisphaeridium, Comasphaeridium and Tianzhushania. Among the taxa, Tianzhushania is comparable in appearance and shape to Trachyhystrkhosphaera aimika from the Svanbergfjellet Formation in northeastern Spitsbergen. Trachyhystrichosphaera aimika is one of the most distinctive and widely distributed of the late Proterozoic acritarchs, now known from at least 15 localities worldwide, it occurs in rocks of Late Riphean age and appears to be an excellent index fossil for the pre-Vendian Neoproterozoic. Tianzhushania from the Doushantuo Formation appears to support the about-mentioned Butterfield' position. That is, it seems that the sediments of the Doushantuo Formation are older than the diverse Ediacaran assemblage.Owing to the fossils are only found from a handful of the thin sections, these microfossils may be represent the parts of the ecological environment from the Doushantuo Formation in eastern Yangtze Gorges. The sedimentary environment and the fossil preservation of the Doushantuo Formation is discussed in this paper.