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Geolocation
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Author - title
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Year
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| details | Valanginian | USSR(WSL) | Markova,L.G. Spore and pollen assemblages of Mesozoic deposits of the West Siberian Lowland | 1962 | |
| details | Valanginian | Hauterivian | USSR(Siberia) | Chlonova,A.F. Palynological characteristics of Cretaceous Layers in Siberia and the Far East. | 1971 |