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Author - title
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Year
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| details | Late Albian | USSR(Ukrainian SSR) | Alekseeva,V.I. Stages of flora development during the Jurassic and Early Cretaceous in the eastern part of the northern Caspian Region, as revealed by palynological evidence | 1971 | |
| details | Late Albian | USSR(Kazakh SSR) | Alekseeva,V.I. The Albian spore-pollen complexes of the Pre-Caspian Depression, (east part), and their stratigraphic significance. | 1969 |