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Geolocation
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Author - title
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Year
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| details | Early Frasnian | USSR(Nenets Nat.Okrug) | Sennova,V.F. Assemblages of spores and other microfossils from deposits in the Timan-Pechora Province. | 1974 | |
| details | Frasnian | USSR(Komi ASSR) | Kushnareva,T.I. et al. Biostratigraphic zonation of the Domanik Formation in the stratotype section | 1978 |