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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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| details | Aptian | USSR(Leningrad) | Bolkhovitina,N.A. Spore and pollen assemblage of the Aptian and Albian from the Central Russian Platform. | 1951 | |
| details | Aptian | Albian | USSR(WSL) | Markova,L.G. The history of development of the Early Cretaceous flora from the Western Siberian Lowlands (Based on palynological facts). | 1971 |