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Author - title
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| details | Valanginian | Hauterivian | USSR(Ukrainian SSR) | Yanovskaya,G.G. Palynological evidence for age determination of the Vishnevskay Series in the Dniester-Prut Interfluve. (In: Palynological Studies of Sedimentary Deposits in the Ukraine and adjacent Regions. Y.V.Teslenko, editor) | 1976 |
| details | Volgian | USSR(Ukrainian SSR) | Voronova,M.A. Palynological characteristic of the contiguous Upper Jurassic-Lower Cretaceous formations of the Dnepr-Donets Trough. | 1971 |