Palaeoulvaria Green Algae of the Vendian (Ediacaran) Berezovsky Trough (South of the Siberian Platform)

Microorganisms of unique preservation were found in the Byuk formation of the Vendian (Ediacaran) of the Berezovsky trough in the southeast of the Siberian platform. These microorganisms are present in the silicified colloform stromatolites, i.e. they inhabited the littoral and sublittoral zones. The microorganisms are characterized by a lamellar body-type, rods between plates that attach them, and reproductive organ on the stipe. Based on these characteristics typical of Ulvaceae, the described microorganisms are to be representatives of green algae (Chlorophyta), belonging to the order Ulvales Blackman et Tansley, and presumably corresponding to the family Anchicodiaceae Shuysky, 1987. A new genus Palaeoulvaria with the type species P. plate gen. et sp. nov. was identified.