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Geolocation
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Author - title
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Year
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| details | Hauterivian | Barremian | USSR(WSL) | Filippova,E.A. Hauterivian - Barremian. (In: Stratigraphy of Mesozoic and Cenozoic Periods of Western Siberian Lowland. E.A.Filippova, editor) | 1957 |
| details | Turonian | USSR(WSL) | Skuratenko,A.V. Turonian spore and pollen assemblages of some Regions of West Siberia | 1966 |