Boreskov

PP‐10that are much darker (probably thicker walled). The occurrences above mentioned cellssuggest the presence of reproductive structures of microfossils.Unicellular organisms have an entirely distinct habit and mode of the formation ofnumerous multicellular branching colonies that have been organized into asymmetrical,sectorial‐type clusters with different number of budding or divided unicells.Fungi are protists by far the most metabolically diverse eukaryotes that can preservesome diagnostic features of life cycle and morphology. Fossil records give an opportunity tosuggest Ascomycota radiation events in the Proterozoic era.The study was performed with the support of Program 25 of the Presidium of RAS.References[1]. Hermann T.N. (1979)/ Records of Fungi in the Riphean. In.: B.S.Sokolov (ed.). Paleontologiya Dokembriya iRannego Kembriya (Paleontology of the Precambrian and Early Cambrian). Leningrad: Nauka. P. 123‐133.149