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Author - title
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Year
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| details | Hauterivian | USSR(WSL) | Rovnina,L.V. Basic principles of detailed stratigraphy of Neocomian oil-gas deposits from Western Siberia. (In: Methods of Interpretation of Palynological Data. E.P.Boitsova, editor) | 1977 | |
| details | Nd | Nd | Shang,Y.-K. Spores and pollen grains from the Shitouhezi Formation of Hegan Basin | 1994 |