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Correlations

North Pacific AKSR-NASR Anadyr-Koryak Verkhoyansk-Chukotka Okhotsk-Chukotka N. Alaska Yukon Chignik
Phytostratigraphy          

 

Anadyr-Koryak Subregion (AKSR) of Northeastern Russia

This chart shows the relative positions of the phytostratigraphic horizons found in Northeastern Russia, the associated chronostratigraphy and regional taphofloras.

Clicking on the taphoflora symbols takes you to pages illustrating the material that is typical of those taphofloras. (Note: only those taphofloras covered in this website have active links.)

Clicking on the Floras column takes you to descriptions of the different phases of floral evolution in Northeastern Russia.

 

Hotspot linking to the Kuk River Localities Interactive Correlation chart for AKSR floras Hotspot linking to description of the Koryak phase of floral evolution in the AKSR Hotspot linking to description of the Gornorechenian phase of floral evolution in the AKSR Hotspot linking to description of the Barykov phase of floral evolution in the AKSR Hotspot linking to description of the Kaivayam phase of floral evolution in the AKSR Hotspot linking to description of the Penzhina phase of floral evolution in the AKSR Hotspot linking to description of the Grebenka phase of floral evolution in the AKSR Hotspot linking to description of the Early Ginter phase of floral evolution in the AKSR Hotspot linking to the Poperechnaya floral localities Hotspot linking to the Tylpegyrgynai floral localities Hotspot linking to the Yanranai floral description Hotspot linking to the Yelistratov Penisnula floral localities Hotspot linking to the Grebenka River floral localities Hotspot linking to the pekul'nei Ridge Page Hotspot linking to the Pekul'nei Ridge west slope localities Hotspot linking to the Pekul'nei Ridge East slope localities Hotspot linking to the Ugolnaya Bay localities Hotspot linking to the Amaam Lagoon localities Hotspot linking to the Grebenka River floral pages Hotspot linking to the Yelistratov Peninsula floral pages Hotspot linking to the Velizhgen Cape page Hotspot linking to the Cape Konglomeratovyi page Hotspot linking to the NW Kamchatka page Hotspot linking to the pages that describe Pahses of floral evolution terminology Hotspot linking to the Anadyr River pages Hotspot linking to the Cape Konglomeratovyi Penzhina Flora page Hotspot linking to the Cape Konglomeratovyi Kaivayam flora Hotspot linking to Cape Valizhgen flora page Hotspot linking to the Ginter Flora Ugolnaya Bay Hotspot linking to the Baykov flora at Ugolnaya Bay Hotspot linking to the Koryak Flora at Amaam Lagoon

The Anadyr-Koryak Subregion originated in the late Albian, when part of the Kamchatka–Koryak marine basin adjacent to the OCSR volcanic highland dried. Coastal alluvial lowlands and plains of the AKSR were covered with meandering rivers, lakes and swamps. Abundant plant remains were buried in terrigenous coal-bearing alluvial, lacustrine, and palustrine deposits of the subregion. Subsequent marine transgression resulted in a shallow shelf basin with numerous islands, and shallow-water marine sedimentation covered the continental deposits. As regards AKSR floral evolution, the Early Ginter (late Albian), Grebenka (late Albian – early Turonian), Penzhina (late Turonian), Kaivayam (Coniacian), Barykov (Santonian–early Campanian),  Gornorechenian (?late Campanian – early Maastrichtian), and Koryak (early – late Maastrichtian – ?Danian) phases are recognised. All the late Albian – Danian floras of the AKSR, except for the oldest Early Ginter flora, are dominated by abundant and diverse angiosperms. The Early Ginter flora is regarded as a paleofloristic analogue of the Buor-Kemus flora of Northeastern Russia.

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