Abstract
Eight categories of organic-walled coccoid microfossils in the c. 700-Ma-old Doushantuo Formation are described and named. Of these, one genus and species ( Paratetraphycus giganteus) is new. Most of the microfossils are interpreted as being the remains of the Chroococcaceae and are morphologically comparable to those of the 650-Ma-old Yudoma microbiota and the 850-Ma-old Bitter Springs microbiota. These microfossils occur in non-stromatolitic cherts, adding preservational information to the study of Precambrian life.
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