scholarly journals Iberoccitanemys atlanticum (Lapparent de Broin & Murelaga, 1996) n. comb.: new data on the diversity and paleobiogeographic distributions of the Campanian-Maastrichtian bothremydid turtles of Europe

2021 ◽  
Author(s):  
Adán PÉREZ-GARCÍA ◽  
Francisco ORTEGA ◽  
Xabier MURELAGA
Keyword(s):  
Fossil Record ◽  
Upper Cretaceous ◽  
Type Locality ◽  
The North ◽  
New Information ◽  
North Eastern ◽  
North Of Spain ◽  
Eastern Half ◽  
Upper Maastrichtian ◽  
Upper Campanian

Bothremydidae is the most abundant clade of turtles in the Campanian and Maastrichtian (Upper Cretaceous) fossil record of southwestern Europe. Several members of Foxemydina Gaffney, Tong & Meylan, 2006 are known in an area that includes Southern France and the North-Eastern half of Spain. The problematic ‘Polysternon’ atlanticum is the worst characterized, lacking a diagnosis that allows its specific validity to be confirmed, and whose generic attribution has been recognized as doubtful. Its presence was exclusively proposed in its type locality, the upper Campanian quarry of Laño, in Treviño County (Burgos Province, North of Spain). Despite the fact that knowledge about Bothremydidae has markedly increased after the description of ‘Polysternon’ atlanticum Lapparent de Broin & Murelaga, 1996, no new information about this species has been published since the 1990s. The analysis of abundant unpublished material of the bothremydid from Laño allows us to confirm the validity of this species. As a consequence of this study, it is not only identified in its type locality, but also in other Spanish regions and in the south of France. The diversity of Bothremydidae Baur, 1891 in the Upper Cretaceous of Europe is lower than previously considered. Thus, the species ‘Iberoccitanemys convenarum’ (Laurent, Tong & Claude, 2002), originally defined for the French record, and subsequently also identified in Spain, is identified here as a synonym of the species described in Laño. An emended diagnosis for the upper Campanian to upper Maastrichtian, Iberoccitanemys atlanticum (Lapparent de Broin & Murelaga, 1996) n. comb., is proposed.

Information content in the rainfall observed by INSAT-3D and IMERG: An intercomparison study over the north eastern region of India

2021 ◽  
Author(s):  
Aniket Chakravorty ◽  
Shyam Sundar Kundu ◽  
Penumetcha Lakshmi Narasa Raju
Keyword(s):  
Information Content ◽  
Permutation Entropy ◽  
Eastern Region ◽  
Redundant Information ◽  
Time Step ◽  
Wavelet Entropy ◽  
Rainfall Prediction ◽  
The North ◽  
New Information ◽  
North Eastern

<p>There has been a noticeable increase in the application of artificial intelligence (AI) algorithms in various areas, in the recent past. One such area is the prediction of rainfall over a region. This application has seen crucial advancement with the use of deep sequential learning algorithms. This new approach to rainfall prediction has also helped increase the utilization of satellite data for prediction. As, AI based prediction algorithms are based on data, the characteristics of it dominates the accuracy of the prediction. And one such characteristic is the information content in the data being used. This information content is classified into redundant information (information of past states in the current state) and new information. The performance of the AI based rainfall prediction depends on the amount of redundant information present in the data being used for training the AI model, more the redundant information (less the new information content) more accurate will be the prediction. Various entropy based measure have been used to quantify the new information content in the data, like permutation entropy, sample entropy, wavelet entropy, etc. This study uses a new measure called the Wavelet Entropy Energy Measure (WEEM). One of the advantages of WEEM is that it considers the dynamics of the process spread across different time scales, which other information measures have not considered explicitly. Since, the dynamics of rainfall is multi-scalar in nature, WEEM is a suitable measure for it. The main goal of this study is to find out the amount of information being generated by INSAT-3D and IMERG rainfall at each time step over the North Eastern Region of India, which will dictate the suitability of the two rainfall product to be used for AI based rainfall prediction.</p>

scholarly journals Integrated uppermost Campanian–Maastrichtian calcareous nannofossil and foraminiferal biostratigraphic zonation of the northwestern margin of Australia

2003 ◽  
Vol 22 (1) ◽  
pp. 29-62 ◽  
Author(s):  
R. W. Howe ◽  
R. J. Campbell ◽  
J. P. Rexilius
Keyword(s):  
Planktonic Foraminifera ◽  
Petroleum Exploration ◽  
Calcareous Nannofossil ◽  
Ocean Drilling Program ◽  
Exmouth Plateau ◽  
Ocean Drilling ◽  
The North ◽  
Northwestern Margin ◽  
Upper Maastrichtian ◽  
Upper Campanian

Abstract. During the latest Campanian–Maastrichtian the northwestern Australian margin was situated between the cool-water Austral Province to the south and the warm-water Tethyan Province to the north. The transitional nature of calcareous microfossil assemblages on the margin makes application of Tethyan biostratigraphic zonation schemes awkward, as many marker-species are missing or have different ranges. This study presents an integrated uppermost Campanian–Maastrichtian calcareous microfossil zonation based on two Ocean Drilling Program (ODP) holes on the Exmouth Plateau and eight petroleum exploration wells from the Vulcan Sub-basin. The zonation is refined and revised from the previously unpublished KCN (nannofossils), KPF (planktonic foraminifera), KBF (benthonic foraminifera) and KCCM (composite nannofossil and planktonic foraminifera) zonations, which are commonly used for petroleum exploration wells drilled on the northwestern margin. Revision of the zonations has highlighted a major Upper Campanian to lower Upper Maastrichtian disconformity on the Exmouth Plateau, which went largely unnoticed in previous examinations of the ODP material, but had been recorded previously elsewhere on the northwestern margin. The duration of the disconformity in the Vulcan Sub-basin is unclear, since intervals of the succession may be condensed in this area.

Seasonal changes in the north-eastern Atlantic mackerel diet (Scomber scombrus) in the north of Spain (ICES Division VIIIc)

2005 ◽  
Vol 85 (2) ◽  
pp. 415-418 ◽  
Author(s):  
Ignacio Olaso ◽  
José L. Gutiérrez ◽  
Begoña Villamor ◽  
Pablo Carrera ◽  
Luis Valdés ◽  
...  
Keyword(s):  
Seasonal Changes ◽  
Content Volume ◽  
Gelatinous Zooplankton ◽  
East Atlantic ◽  
Atlantic Mackerel ◽  
North East ◽  
The North ◽  
North Eastern ◽  
Stomach Weight ◽  
North Of Spain

Seasonal changes in the diet of the Atlantic mackerel from the north-east Atlantic in ICES Division VIIIc during the period 1988–1999. The diet of juvenile (21–29 cm) and adult mackerel (30–45 cm) in this area in spring (the spawning season) and autumn varied in composition and size of prey. In spring, the average prey weight was 0·009 g and the number of prey was 180 individuals per stomach, with the average stomach content volume being 1·62 g (0·60% BW [body weight]), and 1·50 g (0·51% BW) when considering the empty stomachs. In autumn, the average prey weight was 0·28 g, the average number of prey per stomach was 17, and the average stomach weight that contained food was three times higher than in spring, and 2·3 times when considering the empty stomachs. In spring, the diet of the juveniles consisted of euphausiids, crustacean larvae and other zooplankton, whereas euphausiids formed 90% of the diet in the adults. In addition, during this period mackerel were cannibalistic, feeding on their own eggs. In autumn, the juveniles ate hyperiids and other, mainly gelatinous zooplankton, whereas for the adults blue whiting were clearly important, since they comprised 90% of the stomach weight.

scholarly journals Calcareous nannofossils from the upper Campanian–Maastrichtian (Upper Cretaceous) in the Kladorub Formation (Kula tectonic zone, NW Bulgaria)

2019 ◽  
Vol 48 (1) ◽  
pp. 73-101
Author(s):  
Georgi Granchovski
Keyword(s):  
Upper Cretaceous ◽  
Calcareous Nannofossils ◽  
Tectonic Zone ◽  
Lower Upper ◽  
Upper Maastrichtian ◽  
Stratigraphic Interval ◽  
Upper Campanian

A detailed investigation into the calcareous nannofossils from the upper Campanian–Maastrichtian deposits of the Kladorub Formation (NW Bulgaria) has been carried out in order to examine their taxonomic content and test the applicability of cosmopolitan zonation schemes for this stratigraphic interval in the country. The Kladorub Formation is composed of silty to fine-sandy marlstones and rare marly limestones, occasionally interbedded with sandstone layers. The recovered nannofloras are abundant, taxonomically diverse and exhibit predominantly moderate preservation, which allowed precise taxonomic identifications and biostratigraphic analysis to be made. As a result, the presence of two previously undocumented, biostratigraphically significant taxa has been recorded (i.e., Eiffellithus parallelus and Ceratolithoides kamptneri). Consequently, the studied Upper Cretaceous sediments have been assigned to subzone UC15dTP (pars.)–subzone UC20dTP; in the uppermost 2 m of the section, the presence of zone NP1 has also been indicated, which is in concordance with previous authors’ data. Due to the lack of proper chronostratigraphic framework for the Kladorub Formation, top Uniplanarius trifidus and base Lithraphidites quadratus have, respectively, been used to approximate the Campanian/Maastrichtian and lower/upper Maastrichtian boundaries. The Cretaceous/Palaeogene boundary, however, could not be drawn with precision, because it falls within a 6.5-m interval of non-exposure. The resulting biostratigraphic framework offers higher stratigraphic resolution than previously used local zonation schemes and allows correlation with coeval sedimentary successions from other parts of the Tethyan and Boreal realms.

scholarly journals Chalk depth structure maps, Central to Eastern North Sea, Denmark

2007 ◽  
Vol 13 ◽  
pp. 9-12 ◽  
Author(s):  
Ole V. Vejbæk ◽  
Torben Bidstrup ◽  
Peter Britze ◽  
Mikael Erlström ◽  
Erik S. Rasmussen ◽  
...  
Keyword(s):  
North Sea ◽  
Upper Cretaceous ◽  
Building Materials ◽  
Oil And Gas ◽  
Rock Type ◽  
The West ◽  
The North ◽  
Groundwater Aquifer ◽  
North Eastern ◽  
Stratigraphic Interval

The Upper Cretaceous – Danian chalk may be considered to be the economically most important rock type in Denmark. Onshore it constitutes an important groundwater aquifer and it is also quarried for e.g. building materials and paper production. Offshore the chalk reservoirs contain more than 80% of the oil and gas produced in Denmark (Fig. 1). During the last few years efforts have therefore been made to map this important succession in the Danish and adjoining areas (Vejbæk et al. 2003). The stratigraphic interval mapped comprises the Chalk Group of Cenomanian to Danian ages and its stratigraphically equivalent units (Fig. 2). The north-eastern limit of the Chalk Group is determined by Neogene erosion. The limits of the map to the west and south were mainly determined by the amount of available data.

scholarly journals PRELIMINARY REPORT ON THE LACUSTRINE STRATA OF THE SANFRANCISCANA BASIN IN NORTHERN MINAS GERAIS, BRAZIL

2020 ◽  
pp. 1-10
Author(s):  
Jonathas S. Bittencourt ◽  
Pedro L. C. R. Vieira ◽  
Raphael M. Horta ◽  
André G. Vasconcelos ◽  
Natália C. A. Brandão ◽  
...  
Keyword(s):  
Late Cretaceous ◽  
Fossil Record ◽  
Preliminary Report ◽  
Upper Cretaceous ◽  
Minas Gerais ◽  
Fish Scales ◽  
The North ◽  
Younger Age ◽  
First Time ◽  
Pelitic Rocks

We report new data on the geology and the fossil record of the Sanfranciscana Basin in sites to the north of the traditionally explored localities within Minas Gerais. The strata in the new explored area are formed by distinct lithologies, encompassing pelitic rocks with caliche levels and metric bodies of cross-bedded sandstone towards the top, similar to the fluviolacustrine beds of the Areado Group in the southern portions of the basin. Also similar to other regions of the São Francisco Craton, the deposits of the Sanfranciscana Basin studied herein lie discordantly to the rocks of the Bambuí Basin. We preliminarily report neopterygian fish scales, little informative archosaurian bones and an association of the ostracods Ilyocypris- Fossocytheridea. This ostracod association is registered for the first time in the Cretaceous of the Sanfranciscana Basin. The ostracods have been collected from the lacustrine, vertebrate-bearing rocks cropping out in Lagoa dos Patos and Coração de Jesus. The cytherideid Fossocytheridea assigns a minimal Aptian age to its bearing rocks. Its association with Ilyocypris was also reported in Upper Cretaceous oligohaline paleoenvironments in Brazil and Argentina, indicating similar depositional conditions to the strata reported in this paper. The putative affinities of the specimens of the Sanfranciscana Basin with F. ventrotuberculata, and their association with Ilyocypris, raise the hypothesis of a younger age for some levels of that basin in northern Minas Gerais, perhaps ranging into the Late Cretaceous. Keywords: Ostracoda, Archosauria, Areado Group, Cretaceous, Gondwana

scholarly journals Identification of the African–European <i>Erymnochelys</i> group (Pleurodira, Podocnemididae) in the Belgian fossil record: first finding of <i>Eocenochelus eremberti</i> outside its type locality

Fossil Record ◽  
2017 ◽  
Vol 20 (2) ◽  
pp. 245-251 ◽  
Author(s):  
Adán Pérez-García ◽  
Thierry Smith
Keyword(s):  
Fossil Record ◽  
Upper Cretaceous ◽  
Middle Eocene ◽  
Type Locality ◽  
Specific Level ◽  
Lower Eocene ◽  
Its Analysis ◽  
First Finding ◽  
French Region ◽  
Sciences Naturelles

Abstract. An almost complete plastron, as well as several peripherals and a costal plate of a turtle from the middle Eocene of Saint-Gilles, is presented here. Although this turtle specimen was donated to the Institut royal des Sciences naturelles de Belgique (Brussels, Belgium) more than a century ago, it remained undescribed. Its study allows us to recognize the second pleurodiran in the Belgian fossil record, where, until now, the Eocene Neochelys was the only one known. The Belgian material of Neochelys is known in lower Eocene (early Ypresian) levels, but the new pleurodiran specimen comes from the middle Eocene (early Lutetian). It is the first partial articulate shell of a pleurodiran turtle recognized in Belgium, and the only member of this clade recognized in this country at specific level. The new specimen is a representative of the so-called Erymnochelys group, this lineage being known in Africa from the Upper Cretaceous to the present but in Europe only during the Eocene. It represents the first specimen of Eocenochelus eremberti identified outside its type locality, the French region of Saint-Germain-en-Laye (Yvelines, Île-de-France), where only one specimen was found. The plastron of the Belgian individual corresponds to the most complete for this species. Its analysis allows us not only to broaden the range of paleobiogeographical distribution of Eocenochelus eremberti but also to improve the knowledge about the anatomy and variability of this taxon.

scholarly journals Visualization Practices in Training Pedagogy Students

Webology ◽  
2021 ◽  
Vol 18 (Special Issue 04) ◽  
pp. 1144-1159
Author(s):  
Irina Vitalevna Sosnovskaya ◽  
Nadezhda Ilinichna Nikonova ◽  
Svetlana Yrievna Zalutskaya ◽  
Nina Pavlovna Terentyeva ◽  
Elena Olegovna Galitskyh
Keyword(s):  
Cognitive Activity ◽  
Subject Area ◽  
Educational Goals ◽  
Main Research ◽  
The North ◽  
New Information ◽  
North Eastern ◽  
The One

The world practice of distance learning has updated the educational technologies that are adequate to the challenges of today and can effectively solve the problems of training competitive specialists in the new information society. Among them, visualization is singled out, which improves the quality of perception, understanding and assimilation of educational material and serves as a powerful motivator of the students’ cognitive activity. The study is aimed at characterizing the potential of visualization as a technology for teaching Pedagogy students, which allows using the tools of the digital environment effectively to achieve educational goals. The main research method is the survey of 96 second-year bachelor-degree students of the subject area “Pedagogical Education” of the Faculty of Philology of the North-Eastern Federal University. A quantitative and qualitative analysis of the results of the research on visualization as educational technology has revealed the interest of future teachers in using visual teaching methods and understanding the role of visualization in enhancing the cognitive activity of students. The respondents have demonstrated, on the one hand, knowledge of the basic means of information visualization (88%). Yet, on the other hand, not all of the respondents (55%) can clearly and consciously differentiate the concepts of “online platform”, “social network” and “visual means of transmitting information” (“visual communication”).

scholarly journals “Assassins of the Great Prince Andrey”: An Inscription about the Murder of Andrey Bogolyubsky from Pereslavl-Zalessky

Slovene ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 63-102
Author(s):  
Alexey A. Gippius ◽  
Savva M. Mikheev
Keyword(s):  
Three Dimensional ◽  
Church History ◽  
Three Dimensional Model ◽  
Old Russian ◽  
The North ◽  
New Information ◽  
12Th Century ◽  
North Eastern ◽  
The Church ◽  
High Social Status

The present paper deals with a long inscription which was uncovered in the autumn of 2015 on the external wall of the southern apse of the 12th century Transfiguration Cathedral in Pereslavl-Zalessky. It contains an almost fully legible list of assassins of the Vladimir-Suzdal prince Andrey Yuryevich, who was murdered in Bogolyubovo on June 29th, 1174. The writer places a curse on the murderers and wishes eternal memory to the prince. The graffito probably dates from 1175–1176 when Andrey’s younger brother Vsevolod Yuryevich ruled in Pereyaslavl. It is the oldest inscription from the North-Eastern Rus’ to have a fairly precise dating. The discovery corroborates the general accuracy of the chronicles in respect to the murder and serves as a source for the study of Old Russian princely titles and other terms of social hierarchy. Andrey Yuryevich is called the grand prince and his murderers are collectively given the pejorative name of parobki (servants) despite the high social status of at least some of them. As the first example of anathematising state criminals in Rus’, the inscription has relevance for church history as well. Valuable new information is provided by the list of assassins. It includes the names of 11–13 individuals. The list indicates that the main conspirator, the boyar Kuchcko's son-in-law named Peter was the son of someone named Frol. That Frol may have been the founder of the Church of Saints Florus and Laurus in the Moscow Kremlin. The patronymic of the third of the murderers Yakim Kuckovičь is spelled with a c., which may be an indication of Kuchko's Novgorodian origin. The fourth on the list is Ofrem Moizich. The authors accept the Arabic origins of Ofrem’s patronymic suggested by V. S. Kuleshov. The latter traces it back to the name Muʕizz which could have belonged to a Muslim from Volga Bulgaria. The fifth conspirator Dobryna Mikitich is tentatively identified as the Rostov boyar Dobryna the Tall. He played a prominent role in the feud triggered by the assassination of Andrey Yuryevich and perished in the Battle of Yuryev Field on June 27th, 1176. The last person on the list bears the rare Slavic name Styrjata which elsewhere is attested only in the 12th century graffiti inscriptions from the Annunciation Church at Gorodische near Novgorod. From the standpoint of linguistics the inscription demonstrates an advanced stage of the yer-shift. In this respect it is similar to the Novgorod birchbark letter No. 724 which dates from the same period. The inscription was read with the help of a three-dimensional model created by the RSSDA Lab. (https://rssda.su/ep-rus).

The Peregrine Falcon, Falco-Peregrinus-Macropus S, in Tasmania .1. Distribution, Abundance and Physical Characteristics of Nests

1987 ◽  
Vol 14 (1) ◽  
pp. 81 ◽  
Author(s):  
NJ Mooney ◽  
NP Brothers
Keyword(s):  
The State ◽  
Peregrine Falcon ◽  
Nearest Neighbour ◽  
Nest Sites ◽  
The North ◽  
Peregrine Falcons ◽  
North Eastern ◽  
Breeding Distribution ◽  
Altitudinal Limit ◽  
Eastern Half

Peregrine falcons occur throughout Tasmania, their breeding distribution being essentially a contraction of their sighting distribution. In a study lasting from 1973 to 1986, we came to know the exact location of 108 nesting territories and the approximate whereabouts of 25 more. During the first half of the study 60% of nesting territories were occupied and about 50% were active (eggs laid); by 1986 these values had increased to 75-80% and nearly 70% respectively. The number of breeding pairs rose from 59 to 92, averaging 72. Most occurred in high-density clumps of from five to ten pairs, within which active eyries were regularly and potential eyries randomly distributed (mean G-values 0.88 and 0.46). Densities varied considerably between clumps, from mean nearest-neighbour distances of 5.7 km, and 2.08 pairs per 100 km2, in a river gorge, to 18.4 km and 0.33 pairs per 100 km2 in a group of islands. Areas with the highest density tended to have the most regularly spaced active eyries. Of all pairs, 85% were in the north-eastern half of the State; the overall mean densities in the north-eastern and south-western halves was 0.18 and 0.032 pairs per 100 km2 respectively. All recent nestings were on natural cliffs, half of which were sandstone; half were in sheltered positions; 15% were on offshore islands, and coastal nests were usually associated with nearby islands. Most eyries and nest sites faced north and/or east. Cliff eyries averaged 48.6 m in height, and in most areas there were three or four times as many potential as active eyries; lack of suitable cliffs is the main limit to breeding in only 2.7% of Tasmania. The upper altitudinal limit to breeding is about 900 m, which excludes 2.5% of the State.

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