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Geolocation
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Author - title
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Year
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| details | Devonian | USSR(Siberia) | Nadler,Y.S. Main features of Devonian spore complexes in Siberia and stages of land flora evolution. | 1974 | |
| details | Carboniferous | USSR | Andreeva,E.M. Spore and pollen complexes in Upper Proterozoic and Paleozoic deposits of some Regions of the USSR | 1962 |