| link
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From
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To
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Geolocation
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Author - title
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Year
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|---|---|---|---|---|---|
| details | Late Frasnian | Russia(Urals) | Pershina,A.I. et al. The biogeographical zonation of the European North of the USSR (the Devonian). | 1976 | |
| details | Early Famennian | Baltic Region | Zheiba,S.Y. The boundary between the Frasnian and Famennian in the Baltic Syneclise. | 1987 |