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Article
To the Issue of the Age of the Terrace Complexes of the Chuya and Katun Rivers, Russian Altai: Should the Sartan Cryochron Be Excluded from the Epochs of Ice-Dammed Lakes and Cataclysmic Outburst Floods?
The upcoming edition of new stratigraphic scheme of Quaternary deposits of the Altai–Sayan mountain province is based on the concept of cataclysmic draining of the Pleistocene ice-dammed lakes that occurred pr...
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Article
On a Discussion on the Correlation of the Bajocian–Bathonian Sections in the Izhma River Basin, European North of Russia
In the Izhma River basin, the Upper Bajocian–Lower Bathonian sections crop out at several localities along the Dreshchanka River. A recently published opinion (Ippolitov, A.P., Kiselev, D.N. “Geological Featur...
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Article
Species of the Genus Anmarginulina (Lagenida, Foraminifera) from the Late Pliensbachian (Early Jurassic) of the Arctic
Species of the genus Anmarginulina were widespread in the Arctic basins during the Late Pliensbachian. This group is important for biostratigraphy, global correlation, and paleobiogeography. The comprehensive stu...
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Article
The Hettangian–Early Pliensbachian Evolution Phase of the Anabar–Lena Sedimentary Basin, Nordvik Facies Region
New data on the structure and formation conditions of the Anabar–Lena sedimentary basin in the Nordvik facies region at the beginning of the Early Jurassic (Hettangian–early Pliensbachian) are presented. Based...
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Article
Barremian–Aptian Assemblages of Microfauna and Palynomorphs from the North-West of the Yamal Peninsula (Biostratigraphy and Palaeofacies)
The composition of Barremian–Aptian assemblages of microfauna and palynomorphs from the north-west of the Yamal Peninsula allows to reveal local zones, which are well correlated to those in some regions of Eur...
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Article
Volgian–Early Berriasian Marginal Filter in the West Siberian Marine Basin and Its Influence on Sediment Distribution
The West Siberian marine basin of the Volgian–initial Berriasian ages is described. It is shown that a marginal filter (according to A.P. Lisitsyn) functioned in the basin. The main mass of terrigenous sedimen...
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Article
Mid-Cretaceous Tuor-Yuryakh Section of Kotelnyi Island, New Siberian Islands: How Does the Probable Basement of Sedimentary Cover of the Laptev Sea Look on Land?
The model of geological structure of sedimentary cover of the Laptev Sea accepted by most geologists suggests that the lower seismic complex of the cover begins by the Aptian–Albian sedimentary rocks. They can...
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Article
Representatives of the Genus Trochammina (Foraminifera) from the Middle Jurassic of the Arctic and Boreal Regions
Representatives of the genus Trochammina are widespread in the Middle Jurassic of Arctic, Boreal, and Subboreal paleobasins. This group is important for stratigraphic and biofacial investigations. Foraminifers of...
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Article
The Early Callovian genus Сadochamoussetia (Ammonoidea, Cardioceratidae) in the lower reaches of the Anabar River, Northern Central Siberia
The species Cadochamoussetia aff. subpatruus (Nik.), Cadochamoussetia surensis (Nik.), and Cadoceras cf. simulans Spath are found for the first time in the lower reaches of the Anabar River. The first two species...
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Article
The Early Jurassic to Aalenian paleobiogeography of the Arctic realm: Implication of microbenthos (Foraminifers and Ostracodes)
Stages in evolution of the Early Jurassic to Aalenian foraminifers and ostracodes are established based on the analyzed diversity dynamics of respective microfauna associations. Evolution of foraminifers is di...
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Article
Pliensbachian-Toarcian biotic turnover in north Siberia and the Arctic region
The biotic turnover in the Pliensbachian-Toarcian transition and changes in assemblages of bivalves, ostracodes, foraminifers, dinocysts, spores, and pollen are described. Only five of 24 bivalve genera and tw...
