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Geolocation
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Author - title
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Year
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| details | Early Cretaceous | USSR(Taymyr Nat.Okrug) | Kara-Murza,E.N. Palynological basis of stratigraphical subdivision of the Mesozoic deposits of the Khatanga Depression. | 1960 | |
| details | Early Valanginian | Middle Valanginian | USSR(Yakut ASSR) | Kara-Murza,E.N. Some data on the composition of spore-pollen complexes of the marine Lower Cretaceous of the Nordvik Region. | 1958 |
| original | Aptian | USSR(Moscow) | Bolkhovitina,N.A. Spore and pollen characteristics of Cretaceous layers in the Central Regions of the USSR. | 1953 |