CLIMATIC FLUCTUATIONS IN THE MIDDLE LATITUDES OF THE NORTHERN HEMISPHERE ACCORDING TO THE STUDY OF CAMPANIAN PLANKTONIC FORAMINIFERA

To reconstruct the climatic fluctuations that occurred in the middle latitudes of the Northern Hemisphere in the Atlantic Ocean in the Campanian Age, the systematic composition of the shells of planktonic foraminifera was studied from core samples from seven deep-water drilling holes. The identified foraminiferal assemblages are assigned to two types (boreal and intermediate) and one subtype (warm boreal) thanatocenosis. On the basis of their spatial distribution, the position of climatic zones for sections of the early, middle, beginning and end of the late Campanian was determined. Different climatic zones were characterized by different types of water masses. Within the studied water area, during most of the studied age interval, two climatic zones were developed: intermediate and boreal. In the Early and Middle Campanian, the boundary between them was in the southern part of the region under consideration. At the beginning of the late Campanian, this border sharply shifted to the north. A short-term Late Campanian warming began. At the end of the late Campanian, the temperature dropped sharply. An intermediate type of thanatocenosis has not been identified. Even in the southernmost part of the water area, the warmboreal subzone prevailed. The obtained reconstructions are confirmed by our own and published data of oxygen isotope analysis.

STRATIFICATION OF CRETACEOUS DEPOSITS OF THE SECTION ¹ 29 – ZAKHIDNOÎKTYABRSKA (KARKINITSKO-NORTH CRIMEAN TROUGH) BY PALYNOLOGICAL DATA

The Karkinitsko-North Crimean trough is a promising region of Ukraine for the search for hydrocarbons, and one of the main oil and gas complexes is the Cretaceous.Therefore, a detailed biostratigraphic subdivision of the Cretaceous sediments is important and necessary, which are the basis for further prospecting work and for the correlation of North Crimean trough with the similar age deposits of the adjacent regions. The Neocomian strata are especially problematic for subdivision and correlation. According to the results of the study of microphytofossils, the stratification of Cretaceous deposits of the Karkinitsko-North Crimean trough was carried out on the example of the supporting well ¹ 29 – Zakhidnoîktyabrska. There are four spore-pollen complexes: Barremian, Aptian, Albian and Cenomanian. For the first time, the Cretaceous deposits were dissected according to the systematic composition of dinocysts, as well as the paleontological characteristics of sediments by other groups of microfossils – spores and pollen of higher plants, remnants of green algae, acritarchsand miñroforaminifers.

ON THE CHAUN PALAEOFLORA FROM NON-MARINE CRERACEOUS OF CHUKOTKA

The Cretaceous fossil floras from the formations of the Okhotsk-Chukotka volcanogenic belt differ significantly by its systematic composition from the same-age fossil floras from the coastal lowland sedimentations. The peculiarities of fossil floras from the volcanogenic disposals are the most obvious in Chaun Flora firstly found in the volcanogenic formations of Pegtymelski Arch in Central Chukotka. L.B. Golovneva presented the results of the long-term study of this flora in the monograph published in 2018. On the base of these data and using our own experience in the stratigraphy of the Okhotsk-Chukotka volcanogenic belt and the study of the vegetation cover dynamics in the areas of modern volcanism of Kamchatka we showed that most likely Chaun Flora formed on juvenile substrata in the central parts of the vast volcanic fields being isolated form the sources of diasporas. The Chaun Flora has not clear affinity in neither lateral nor stratigraphic localization, because the fossil remains of characteristic plant species occur in different-age formations on all extent of the volcanogenic belt. The species characteristic for Chaun Flora are indicators of the certain environmental conditions and reflect the peculiarities of the processes of fossilization in the areas of terrestrial volcanism from Turon until Campanian inclusive.

Ecological and faunal analysis of dragonflies (Odonata) of suborders Zygoptera, Caloptera in Republic of Ingushetia

In this work, we adhere to the systematics proposed by the school of odonatologists B.F.Belyshev, that is, the order is subdivided into three suborders: Anizoptera, Zygoptera and Caloptera. In this article, we first characterize the suborders Zygoptera, Caloptera. The article provides a systematic composition and an overview of taxa common in the RI. [one]. On the basis of literature sources, brief characteristics of suborders, families and genera are given, and the problems of taxonomy and nomenclature of individual species and basic information on the distribution of taxa found in the study area are discussed. Analysis of the existing stream of literary information on dragonflies indicates that there are still problems, the solution of which requires close attention. First of all, this is the lack of research on the Caucasian regional odonatofaunas.

Plant mesofossils from the Late Cretaceous Klikov Formation, the Czech Republic

Late Cretaceous mesofossils are described from the Zliv-Řídká Blana locality in the South Bohemian Basins, the Czech Republic. Angiosperm remains dominate the fossil assemblage both in terms of taxonomic diversity and quantitatively, with about 65 different species based on about 1,000 specimens of flowers, fruits and seeds. There are surprisingly few nonangiosperm species in the flora, with only four specimens assigned to bryophytes, ferns and conifers. There are no megaspores of Selaginellales or Salviniales, which are otherwise common in many Cretaceous mesofossil floras. Among angiosperms, flowers and fruits assigned to the Normapolles group (Fagales) and to the Ericales are particularly prominent. In systematic composition as well as general organization and size of the angiosperm reproductive organs, the Zliv-Řídká Blana mesofossil flora is comparable to other Late Cretaceous mesofossil floras collected from various regions of Laurasia. In addition to the plant remains, the fossil assemblage also includes insect eggs and coprolites.

Language Engineering for Heterogeneous Collaborative Embedded Systems

At the core of model-driven development (MDD) of collaborative embedded systems (CESs) are models that realize the different participating stakeholders’ views of the systems. For CESs, these views contain various models to represent requirements, logical functions, collaboration functions, and technical realizations. To enable automated processing, these models must conform to modeling languages. Domain-specific languages (DSLs) that leverage concepts and terminology established by the stakeholders are key to their success. The variety of domains in which CESs are applied has led to a magnitude of different DSLs. These are manually engineered, composed, and customized for different applications, a process which is costly and error-prone. We present an approach for engineering independent language components and composing these using systematic composition operators. To support structured reuse of language components, we further present a methodology for building up product lines of such language components. This fosters engineering of collaborative embedded systems with modeling techniques tailored to each application.

Taxonomic Structure of Plant Diversity Forest Landscapes of Azerbaijan in the Context of Climate Change

The taxonomic structure of the biodiversity of the forest landscapes of Azerbaijan is presented. The influence of the hypsometric diversity of forest landscapes on biological diversity is determined and the forecasting of the possible effect of climate changes on the composition of phytocenoses is performed. Descriptions were carried out from 2016 to 2019. A herbarium of species is included in the herbarium of the Institute of Dendrology Azerbaijan NAS. The total number of identified Species is 859, belonging to 107 Families. Work was done to clarify the overall systematic composition. Based on the studies, it is recommended that 12 Families of the Class Liliopsida, 24 Families of the Class Magnoliopsida be classified as a particularly sensitive category.

SYSTEMATIC, BIOMORPHOLOGICAL AND ENVIRONMENTAL ANALYSIS OF WILD-GROWING PLANTS OF PEREYASLAV

The peculiarity of the geographical location of the Pereyaslav Region, the existence of dense river nets (the Dnieper River, the Trubizh River, the Alta River, the Supiy River, etc.) and the diversity of landscapes led to the formation of the region rich in plant species. However, the vegetation cover of the region has been significantly transformed as a result of the construction of a hydroelectric power plant on the Dnieper River and the creation of the Kaniv Reservoir. The purpose of the article is to carry out a systematic, biomorphological and ecological analysis of the composition of wild medicinal plants of the Pereyaslav region. The research was conducted during 2018-2019 years on the territory of the Pereyaslav Region. The object of the study is the flora of wild medicinal plants of the Pereyaslav Region. The study was performed by means of the route, stationary and semi-stationary methods. During the field surveys (geobotanical descriptions) of the studied territory, the flora was described, species and families of the plants were determined, their location and ecological conditions of growth, life form, etc. were noted. As a result of the critical inventory of the species composition of the Pereyaslav flora, the systematic composition of wild herbs and medicinal plants of the region was first developed (582 species), consisting of 106 families and 360 species, among which there are vascular plants (Lycopodiophyta, Equisetophyta, Polypodiophyta) – 15 species, Pinophyta – 3 species, Magnoliophyta – 567 species. The biomorphological analysis of wild herbs and medicinal plants of the Pereyaslav Region was performed and it was established that the vast majority of species belong to hemicryptophytes (316 species). It was found that in the studied territory the diversity of wild medicinal plants is represented by trees (27 species), shrubs (28 species), subshrubs (10 species), perennial herbaceous plants (387 species), biennial plants (46 species) and annual plants (84 species). It has been established that the ecological-coenotic nature of valuable species of plants in the study consists of forest (170 species), meadow (145 species), meadow-steppe (114 species), synanthropic phytocenoses consist of 95 species and wetland ecotopes – 58 species.

The crucial boundaries in the development of the late cretaceous biota of plankton foraminifers in the southern part of the Indian ocean

The article analyzes own data on the species composition of shells of planktonic foraminifera from the Upper Cretaceous sediments of the Indian Oceans, as well as from the sections of the offshore seas of Australia. The species of planktonic foraminifera are grouped and arranged in a climatic series. An analysis of the change in the systematic composition of foraminifers made it possible to distinguish periods of extreme and intermediate climatic states in the Late Cretaceous.

The problem of the non-marine cretaceous strata correlation in the north-east of Russia: the conditions of florogenesis in the volcanic region

The most part of the fossil floras from the Cretaceous volcanogenic formations of the North-East of Russia differs significantly in systematic composition from the same-age paleofloras of coastal lowlands. In order to explain the features of their formation, the modern data on the dynamics of vegetation cover on the volcanic plateaus of Central Kamchatka were used. It was shown that in the sites where the paleofloras in geological disposals of the Okhotsk-Chukchi volcanogenic belt were found, there was practically no erosion, but there was the abundance of volcanic material suitable for the formation of disposals. After the massive powerful eruptions, the inland districts of the vast volcanic areas were isolated from the sources of diasporas. Vegetation cover in these areas recovered mainly due to the pool of local species, i.e., maintained as a diasporic sub-climax. The lack of competition from angiosperms contributed to the long-term preservation in such paleofloras the ancient groups of plants and the formation of new taxa on their basis.