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Geolocation
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Author - title
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Year
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| details | Tournaisian | Visean | USSR(European) | Lyuber,A.A. Atlas of spores and pollen of the Paleozoic deposits of Kazakhstan. | 1955 |
| original | Tournaisian | Visean | USSR(European) | Lyuber,A.A. et al. Classification and stratigraphic value of spores of some Carboniferous Coal deposits in the USSR. | 1938 |