PALYNOSTRATIGRAPHY OF GIVETIAN DEPOSITS OF THE CENTRAL AND MAIN DEVONIAN FIELDS
Here we present palynological studies of givetian sediments in the central part of the Central Devonian field (CDP) and the eastern part of the Main Devonian field (GFC). The results obtained allowed to identify seven spore-pollen complex (SPC) for CDP and five SPC GFC with tabulation of the percentage of species and genera most indices encountered miospore givetian deposits within the two territories. Miospore complex correspond to the biostratigraphic zones Stringocephalus burtini on brachiopods, Polygnathus varcus on conodonts, Pycnosteus tuberculatus on the fish fauna and Geminospora extensa (EX) miospore zone, Pashiysk deposits sole responsible conodont hermanni-cristatus zone and miospore zone Contagisporites optivus-Colyptosporites krestovnikovii (OK) for the East European platform. On the territory of CDP studied four subzones Cymbosporites magnificus-Hymenozonotriletes tichonovitschi (MT) for Vorobiev horizon, Vallatisporites celeber-Cristatisporites? violabilis (CV) for Ardatov horizon and Samarisporites triangulatus-Corystisporites serratus (TS) for Mullin horizon. Pashiysk deposits meet subzone Ancyrospora incisa-Geminospora micromanifesta (IM).For GFC highlighted three subzones: Cymbosporites magnificus-Hymenozonotriletes tichonovitschi (MT) for Aruküla horizon, Chelinospora concinna-Rugospora? impolita (CI) for Burtnieki horizon (verhneluzhskie layers) and Aneurospora greggsii-Geminospora micromanifesta (GM) - Gauja horizon (oredezhskie layers). We studied the taxonomic composition palynocomplex its similarity and difference in the behavior of different lithological rocks.Palenzona allocated, are the basis for reliable stratigraphic division and comparison with coeval deposits in other areas of the Russian platform.