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Author - title
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| details | Jurassic | Cretaceous | USSR(Krasnodar Kray) | Medvedeva,A.M. Palynological investigation of Petroleum | 1978 |
| details | Santonian | Campanian | USSR(Siberia) | Chlonova,A.F. et al. New discoveries of the pollen Borealipollis bratzevae, Khlonova, of Late Cretaceous deposits. (In: Palynostratigraphy of the Mesozoic and Cainozoic of Siberia. V.S.Volkova and A.F.Khlonova, editors) | 1985 |