The Ustʹ Pinega Formation is a geological formation exposed along the banks of the Onega River in Arkhangelsk Oblast, northwestern Russia.

It is famed for the vast quantities of fossils of Ediacara biota preserved in its ash beds.[1]

References

  1. ↑ Fedonkin, M.A.; Simonetta, A; Ivantsov, A.Y. (2007), "New data on Kimberella, the Vendian mollusc-like organism (White sea region, Russia): palaeoecological and evolutionary implications", in Vickers-Rich, Patricia; Komarower, Patricia (eds.), The Rise and Fall of the Ediacaran Biota, Special publications, vol. 286, London: Geological Society, pp. 157–179, doi:10.1144/SP286.12, ISBN 978-1-86239-233-5, OCLC 156823511


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