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From
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To
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Geolocation
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Author - title
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Year
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| original | Early Jurassic | USSR(Siberia) | Bolkhovitina,N.A. Atlas of spores and pollen from Jurassic and Lower Cretaceous deposits of the Vilyuysk Basin. | 1956 | |
| original | Givetian | USSR(Russian Platform) | Naumova,S.N. Spore-pollen complexes of the Upper Devonian of the Russian Platform and their significance for stratigraphy | 1953 |