Yury Zaika

UE Geoservice, Belarus, Minsk · Administration

This paper is the second part of the research into the Upper Devonian (Frasnian) corals of Belarus. Twenty five species and subspecies of the Tabulate and Rugose corals have been described and illustrated from the Middle-Upper Frasnian of the Pri pyat Trough, Zhlobin Saddle and Orsha Depression for the first time. Two new subspecies identified may...

The present paper describes the taxonomic composition, stratigraphic distribution and palaeoecology of Upper Devonian (Frasnian) Rugose and Tabulate corals (Anthozoa) of Belarus. Corals are widely distributed in carbonate rocks of the Pripyat Trough, Zhlobin Saddle and Orsha Depression, being especially abundant in the Buinovichi beds (Semiluki For...

Based on an analysis of the significant collections of Favositidae (tabulate corals) from the Upper Ordovician–Lower Devonian of the Taimyr Peninsula, Western Slope of the North Urals and the Tchernychev Uplift, this paper focuses on the macro- and micro-structurе of the corallite wall. Seven structural types of the corallite wall have been recogni...

The large collection of thin sections of stromatoporoids and corals from the Silurian of Ukraine, Moldova, Belarus, and Komi Republic (Russian Federation) revealed several incidences of skeletal intergrowth between stromatoporoids/corals and the other invertebrates. The stromatoporoids formed symbiotic associations with soft-bodied worms (Helicosal...

For the first time, erratic Upper Jurassic Scleractinian corals are reported herein from Pleistocene outcrops of Belarus. The studied material belongs to a widespread species, Thamnasteria concinna (Goldfuss). These findings are of interest primarily because Jurassic erratic fossils are extremely rare in this region. The main distribution areas of...

Critical remarks are given on previously reported occurrences of marine organisms in Quaternary sediments of Belarus. Currently known reliable finds of Quaternary marine bivalves and foraminifers are confined to the north and north-west of Belarus and to absolute altitudes of 115-140 m.

Abstract. Detailed lithological and stratigraphic characteristics of typical outcrops of the Zhelon Regional Stage, exposed in basins of the Saryanka and Rositsa Rivers, are provided in the paper. A new local stratigraphic unit, the Degtyarevo Formation, is distinguished. Its composite section, consisting of a series of exposures, is given. In some...

The paper covers the taxonomic composition, living conditions and stratigraphic distribution of Tabulate and Rugose corals in the Middle Frasnian (Upper Devonian) deposits exposed in the Graliova quarry. This locality is confined to the Orsha Depression and to the western part of the Main Devonian Field (MDF). The following species are reported: Ma...

New data on microfossils from the Upper Cenozoic strata from the territory of Belarus are reported in the article. In the Radashkovichy Upland (Central Belarus), in sands, silts and clays, which are currently mapped as Middle Pleistocene, a mixed association of Upper Cretaceous and Cenozoic Foraminifera was revealed. It is suggested that the Upper...

This is a reworked and updated version of my "Candidate Thesis" ("VSEGEI", St.Petersburg, 2007) ( or PhD), in Russian, now published as a "pdf-book". Keywords: Tabulate corals, Heliolitoidea, Taimyr, Subpolar Urals, Eurasian Arctic. New taxa: Maniporidae, fam.nov., Paralyopora, gen.nov., Nyctopora kozhymica, sp.nov., Catenipora undosa, sp.nov., C...

The paper presents a detailed lithological and stratigraphic description of the type outcrops of the Saria Beds of the Sargaevo Regional Stage exposed within the Saryanka River basin (Verkhnedvinsk district, Belarus). A composite stratotype section consisting of several representative exposures that provide a full description of this stratigraphic...

A geological object, previously interpreted as an allochthonous glacial detached massif, is regarded as an autochthonous outlier formed locally without any glacial influence.

A geological object, previously interpreted as an allochthonous glacial detached massif, is regarded as an autochthonous outlier formed locally without any glacial influence.

New findings of marine faunal remains from Quaternary and possibly older Cenozoic strata from different regions of Belarus as well as of the European part of Russia are reported in the present article. Despite the prolonged discussion about the genesis of surficial deposits of the north-western part of the East European Plain, in Belarus the concep...

Analysis of geographic distribution and determination of geological age of erratic pre-Quaternary sedimentary megaclasts (blocks, boulders and pebbles) enclosed in Quaternary deposits is especially important for localizing their possible sources and native areas. Except for some varieties of rocks that can be identified by their unique petrographic...

Redeposited Paleozoic (mainly Ordovician and Silurian) Tabulata corals are widespread in Pleistocene sandy-argillaceous deposits of Belarus. The nearest Ordovician and Silurian exposures that could be considered as their source rocks are confined to the northern part of Estonia and several islands of the Baltic Sea. Some specimens in the collected...

This paper reports the primary results of a study of Lower Devonian (Pragian) Tabulata and Heliolitoidea corals from the Soda Creek Limestone, west-central Alaska, and contributes further paleontological evidence for resolving issues associated with Alaskan accreted terranes. The study shows a striking similarity of the Soda Creek Tabulata and Heli...

For the first time it is possible to designate a specific area (Saaremaa Island) as the most probable native region for a kind of sedimentary rock debris in a Pleistocene moraine in Belarus. Paleontological study of Lower Paleozoic limestone boulders and pebbles in the Middle Pleistocene Sož Moraine in central Belarus preliminary indicates that the...

The earliest heliolitids appeared more or less simultaneously in the Late Ordovician shallow seas of different palaeocontinents. In this paper the early Katian heliolitids, represented by the genus Protaraea, are described from the East Baltic region (North Estonia and north-west Russia) and discussed in detail for the first time. A new species Pro...

A brief quotation of the author’s research on Ordovician and Silurian Tabulata and Heliolitoidea of North Urals and Taimyr Peninsula, including taxonomic composition, stratigraphic distribution and biostratigraphic value, zoogeography and evolution. St.Petersburg, A.P.Karpinskij All-Russian Geological Research Institute (“VSEGEI”). 2007.

Eight tabulatomorphic coral assemblages have been recognized in the Silurian formations of North Urals and Chernyshev Uplift. There are similar patterns of the stratigraphic distribution of corals and of the order of appearance of their morphological innovations in the Timan-Northen Urals region and in other regions of the western part of Russian A...

The paper is a review of the taxonomy and phylogeny of the genus Mesotrypa Ulrich (Bryozoa) from Belarus, Latvia, Lithuania, the European part of Russia. Two new species: Mesotrypa jaroslavensis and Mesotrypa parva are described.