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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 | Tournaisian | Namurian | Argentina(Salta) | Medvedeva,A.M. Stratigraphic subdivision of lower horizons of the Tunguska Series by spore-pollen analysis. | 1960 |
| details | Rhaetian | USSR(Komi ASSR) | Varyukhina,L.M. Spores and pollen of Triassic deposites of the Southern Pechora Basin. | 1961 |