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Geolocation
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Author - title
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Year
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| details | Tortonian | USSR(Ukrainian SSR) | Shchekina,N.A. Plant material of the second Mediterranean layer of the l'vov Region. | 1956 | |
| details | Oligocene | USSR(Pavlodarskaya) | Zaklinskaya,E.D. Material on the history of the flora and vegetation of the Paleogene of northern Kazakhstan in the area of Pavlodar Pr-Irtish. | 1953 |