Elena Jagt-Yazykova

Elena Jagt-Yazykova
University of Opole · Institute of Biology

PhD, dr hab

About

71
Publications
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Introduction
Elena Jagt-Yazykova currently works at the Department of Biosystematics , Opole University. Her current project is 'Palaeobiogeographical and palaeoecological aspects of Cretaceous ammonite evolution and bio-events in the Russian Pacific'.
Additional affiliations
October 1998 - August 2005
University of Silesia in Katowice
Position
  • Professor (Associate)

Publications

Publications (71)
Conference Paper
Full-text available
This conference paper, co-authored by Machalski, M., Landman, N., H.., Garb, M., Jagt, J.W.M., Jagt-Yazykova, E., Cochran, K. 2024. The Danish Danian ammonites, is about new records of the early Danian ammonite survivors from Denmark. The full paper on the subject is in preparation.
Article
Full-text available
The geographical and stratigraphical distribution of the heteromorph ammonite genus Diplomoceras within the North-West Pacific Province is briefly reviewed. Although Diplomoceras ranks amongst the more important, globally distributed taxa during the latest Cretaceous, its precise stratigraphical range still is uncertain. Moreover, the status of the...
Article
Cretaceous limestones near Maastricht (south-east Netherlands) have been quarried at least since Roman times. In the late eighteenth century, scientific interest developed in their macrofossil content and specimens were illustrated for the first time. Amongst the early discoveries was a partial skull of a large predatory vertebrate that would play...
Chapter
Full-text available
From the early 19th century, Opole has become an important centre of cement production: underneath a thin soil cover, Cretaceous marls and limestones proved to be ideal raw material for this process. Today, there are only two active quarries in the vicinity of Opole: Odra Nowa and Folwark. Turonian–lower Coniacian carbonates are characterised by a...
Article
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A newly collected specimen of the enigmatic coleoid genus Longibelus is recorded from lower Turonian strata along the River Shadrinka in Sakhalin (Russian Far East). To date, this is the first record of Late Cretaceous coleoid cephalopods from the island and, in fact, from the entire Pacific coast of the Russian Federation. Lithological characteris...
Article
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Both partially articulated specimens and dissociated marginal ossicles form the basis for erection of two new species of Late Cretaceous goniasterids from the Mons and Liège-Limburg basins (Belgium) and the Hannover area (Germany). Chomataster breizh sp. nov., which recalls the type species, Chomataster acules Spencer, 1913, but differs in several...
Article
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Stratigraphy, ammonite palaeontology, and regional characteristics are presented from the Maastrichtian deposits of the Sakhalin and the Shikotan islands, Far Eastern Russia. Two different ammonite biostratigraphic zonal schemes based on the representatives of the family Desmooerataceae and the Tetragonitaceae, respectively, are established and the...
Article
A single, atypical conchorhynch (calcitic tip of a cephalopod lower jaw), recovered from the uppermost Meerssen Member (Maastricht Formation, upper Maastrichtian) at the former ENCI-HeidelbergCement Group quarry, south of Maastricht, is described as a new parataxon, Conchorhynchus illustris sp. nov. The specimen can be differentiated from all previ...
Article
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The Society of Vertebrate Paleontology (SVP) has recently circulated a letter, dated 21st April, 2020, to more than 300 palaeontological journals, signed by the President, Vice President and a former President of the society (Rayfield et al. 2020). In this letter, significant changes to the common practices in palaeontology are requested. In our pr...
Article
Full-text available
The Society of Vertebrate Paleontology (SVP) has recently circulated a letter, dated 21st April, 2020, to more than 300 palaeontological journals, signed by the President, Vice President and a former President of the society (Rayfield et al. 2020). In this letter, significant changes to the common practices in palaeontology are requested. In our pr...
Article
Full-text available
Recently, the Society of Vertebrate Paleontology (SVP) has sent around a letter, dated 21st April, 2020 to more than 300 palaeontological journals, signed by the President, Vice President and a former President of the society (Rayfield et al. 2020). The signatories of this letter request significant changes to the common practices in palaeontology....
Article
The first find of a Late Cretaceous shark tooth, or of any cartilaginous fish for that matter, from the Kuril Islands in the Russian Far East is recorded as Carcharias sp. (Lamniformes, Carchariidae). The specimen originates from Maastrichtian strata on the island of Shikotan that are assigned to the Malokurilsk Formation. It constitutes an extreme...
Article
Ever since the first description of fossil material during the mid-nineteenth century, sea grass has been shown to be quite commonly preserved in ‘pockets’ or ‘clumps’ at certain levels within the Gulpen, Maastricht and Kunrade formations in southern Limburg (the Netherlands) and contiguous areas in northeast Belgium. In those places where silicifi...
Article
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Following the first scientific descriptions in the late nineteenth century, the origin of the curious structure currently known as Meteor Crater (or Barringer Crater) in Arizona (USA) remained controversial until well into the twentieth century. Within the context of commercial mining, Daniel Moreau Barringer’s view that it recorded a substratum-pe...
Article
A few isolated plesiosaurian and mosasauroid squamate teeth were collected from the Opole area in southwest Poland during the late nineteenth century. Calcareous nannofossil analysis of their associated rock matrix indicates an early Turonian age (nannofossil zone UC7; Mytiloides ex gr. labiatus and Inoceramus apicalis inoceramid zones), which is s...
Article
Bioindication is a common approach to assess and evaluate environmental changes over both short or long periods of time. Here we attempt to highlight that vegetation can provide indications of the palaeoshoreline of Lake Iskander-kul, even after at least 150 years. It is an example of a dammed lake that was created by a huge mass rockfall as a resu...
Article
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The great palaeontological achievements of the Russian scientists Amalitsky and Sobolev, who worked in Russia and Poland at the turn of nineteenth and twentieth centuries, have previously been outlined in detail. However, their original and surprisingly modern concepts of the development of life on earth have received far less attention. Amalitsky...
Article
In the last week of January 2016, the 'Cretaceous community' lost another of their prominent members, Chris Wood. During recent decades, Chris had been active in the United Kingdom as well as in mainland Europe, particularly in Germany and Poland. Several years ago he had been forced to leave the ranks of Associate Editors with Cretaceous Research,...
Article
Jagt, J.W.M., Jagt-Yazykova, E.A., Kaddumi, H.F. & Lindgren, J., April 2017. Ammonite dating of latest Cretaceous mosasaurid reptiles (Squamata, Mosasauroidea) from Jordan—preliminary observations. Alcheringa. ISSN 0311-5518 Newly collected ammonoid material from the uppermost Cretaceous portion of the Muwaqqar Chalk Marl Formation exposed some 30...
Article
The pachydiscid Pachydiscus (Pachydiscus) gollevillensis (d'Orbigny, 1850), long held to be confined to the 'Kunrade Limestone' (nowadays Kunrade Formation) in the eastern part of southern Limburg (Kunrade-Benzenrade area, the Netherlands), is now recorded from the basal Nekum Member (Maastricht Formation) at the ENCI-HeidelbergCement Group quarry,...
Article
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An exceptionally well-preserved and long crinoid stem is exposed on a slab of decorative Lower Carboniferous (Mississippian) limestone in front of an opticians in Maastricht-Wyck, the Netherlands. The pluricolumnal is incomplete, but is c. 176.5 mm long by at least 7.0 mm wide and with a broad axial canal. The column is heteromorphic, N3231323. The...
Conference Paper
Full-text available
Turonian strata in the Opole area are well known for their well-preserved invertebrate fossils. Amongst the earliest descriptions is Leonhard’s 1897 monograph “Die Fauna der Kreideformation in Oberschlesien”, in which some isolated tetrapod elements, including mosasauroid and plesiosaurian teeth as well as a fragmentary bone named Plesiosauridarum...
Conference Paper
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Overlooked concepts on cyclic biosphere evolution and mass extinctions, proposed by V.P. Amalicki and D.N. Sobolev in 1896 and 1926-1928, respectively, are announced, with stress on recently popular catastrophic scenario of volcanogenic greenhouse.
Article
Isolated skeletal remains of woolly mammoths, found in the Opole region, are described and illustrated. Most of these were recovered in the first half of the twentieth century; they are now deposited in several museum collections but have not yet been described in detail, nor illustrated. Recent discoveries in the area were the prime trigger for th...
Chapter
We examined the stratigraphic distribution of ammonites at a total of 29 sites around the world in the last 0.5 myr of the Maastrichtian. We demarcated this interval using biostratigraphy, magnetostratigraphy, cyclostratigraphy, and data on fossil occurrences in relation to the K/Pg boundary in sections without any facies change between the highest...
Article
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High-velocity impact as a common phenomenon in planetary evolution was ignored until well into the twentieth century, mostly because of inadequate understanding of cratering processes. An eight-page note, published in Russian by the young Ernst Julius Öpik, a great Estonian astronomer, was among the key selenological papers, but due to the language...
Article
One of the puzzles about the end-Cretaceous extinctions is why some organisms disappeared and others survived. A notable example is the differential extinction of ammonites and survival of nautilids, the two groups of co-occurring, externally shelled cephalopods at the end of the Cretaceous. To investigate the role of geographic distribution in exp...
Article
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From Albian, Santonian and Campanian strata in south-central Sakhalin, four echinoid taxa are described, illustrated and discussed. In Far East Russia, echinoids are rare constituents amongst mid- and Late Cretaceous macrofaunal assemblages in which inoceramid and non-inoceramid bivalves, plus heteromorph and non-heteromorph ammonites predominate....
Article
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2012. Terminal Maastrichtian ammonites from Turkmenistan, Central Asia. Acta Palaeontologica Polonica 57 (4): 729–735. A complete uppermost Maastrichtian–Danian succession in the Sumbar River section, western Kopet Dagh (southwest Turkmenistan, Central Asia), constitutes one of the few instances in the world where the fossil record of the last ammo...
Article
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The present paper focuses on the evolutionary dynamics of ammonites from sections along the Russian Pacific coast during the mid− and Late Cretaceous. Changes in ammonite diversity (i.e., disappearance [extinction or emigration], appearance [origination or immigration], and total number of species present) constitute the basis for the identificatio...
Article
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This work presents the results of a study of the biogeographical distribution of Late Albian-Maastrichtian ammonites, found in sequences of the Pacific coast of Russia. The taxa typical of the Pacific Realm were identified, and their distribution traced beyond the borders of this region. In addition, species-migrants, distributed within the studied...
Article
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The south-western Indian Ocean islands, excluding the microcontinent of Madagascar, are geologically complex and diverse. They have been subject to drastic sea level changes, volcanic events and anthropogenic changes, all of which have contributed to confuse understanding of their avian biogeography. An array of factors have affected these avifauna...
Article
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A synthesis of the stratigraphy of the Maastrichtian Stage in its extended type area, that is, southern Limburg (the Netherlands), and adjacent Belgian and German territories, is presented with a brief historical overview. Quarrying activities at the large quarry complex of ENCI-HeidelbergCement Group will officially come to an end on July 1, 2018....
Article
All contributions in the current memorial volume are briefly commented upon, with the emphasis on how these issues touched upon, or were linked to, the long and productive professional careers of the late Felder brothers, in the fields of geology, palaeontology and human prehistory. Pertinent literature references are added, some of which are cover...
Data
Full-text available
Jagt-Yazykova, E.A. Palaeobiogeographical and palaeobiological aspects of mid-and Late Cretaceous ammonite evolution and bio-events in the Russian Pacific. Scripta Geologica, 143: 15-121, 17 figs., 13 pls., Leiden, December 2011. Elena A. Jagt-Yazykova, Uniwersytet Opolski, Wydział Przyrodniczo-Techniczny, Katedra Biosyste-matyki, ul. Oleska 22, PL...
Article
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Recent studies have demonstrated the complex depositional history of the Vijlen Member (Gulpen Formation) in the Maastricht-Aachen-Liege area, on which synsedimentary tectonics had a profound impact, in conjunction with regressive and transgressive episodes, the oldest portion of this member being preserved only locally, within channel-like structu...
Article
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Isolated valves of proverrucid cirripedes (Thoracica, Verrucomorpha) from upper lower Campanian strata exposed at Jeżówka, near Wolbrom (southern Poland), are shown to be conspecific with the type (and sole) species of the genus Eoverruca, E. hewitti Withers, 1935. This species was first recorded from the upper Santonian (Marsupites testudinarius Z...
Article
Isolated valves of proverrucid cirripedes (Thoracica, Verrucomorpha) from upper lower Campanian strata exposed at Jeżówka, near Wolbrom (southern Poland), are shown to be conspecific with the type (and sole) species of the genus Eoverruca, E. hewitti Withers, 1935. This species was first recorded from the upper Santonian (Marsupites testudinarius Z...
Article
To date, twelve species have been assigned to the brachylepadomorph cirripede genus Pycnolepas Withers, 1914, some of them on the basis of very limited material. The current status of all these taxa is briefly reviewed. Added are notes on a small collection of isolated capitular valves from middle Albian (Lower Cretaceous) strata in the lower reach...
Article
To date, twelve species have been assigned to the brachylepadomorph cirripede genus Pycnolepas Withers, 1914, some of them on the basis of very limited material. The current status of all these taxa is briefly reviewed. Added are notes on a small collection of isolated capitular valves from middle Albian (Lower Cretaceous) strata in the lower reach...
Article
Full-text available
from the Early Frasnian Goniatite Level at Kostomłoty in the Holy Cross Mountains, Poland. Acta Palaeontologica Polonica 51 (4): 707–718. The unique goniatite−rich pyritic level, 1.6 m thick, exposed at Kostomłoty (Holy Cross Mountains, central Poland) represents a distinct, local biotic event in the Early Frasnian interval corresponding to the inc...
Article
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To date, the two highest units (Nekum and Meerssen members) of the Maastricht Formation in the Maastrichtian type area (southeast Netherlands, northeast Belgium) have yielded some twenty ammonite species, the majority of which are heteromorph. Baculitids and scaphitids predominate, while diplomoceratines and nostoceratids are extremely rare and do...
Article
[Hasegawa, T., Pratt, L.M., Maeda, H., Shigeta, Y., Okamoto, T., Kase, T., Uemura, K., 2003. Upper Cretaceous stable carbon isotope stratigraphy of terrestrial organic matter from Sakhalin, Russian Far East: a proxy for the isotopic composition of paleoatmospheric CO2. Palaeogeogr. Palaeoclimatol. Palaeocol. 189, 97–115] present highly interesting...
Article
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The Cenomanian–Turonian succession of faunal assemblages identified in Sakhalin has enabled the establishment of 10 ammonite, 7 inoceramid, 4 radiolarian, and 2 foraminiferal zones, which correlate relatively well with those recorded for the northeastern region of Russia (Kamchatka and Koryakia) and for Japan. The problems surrounding placement of...
Article
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YAZYKOVA, E. 2004. Ammonite biozonation and litho-/chronostratigraphy of the Cretaceous in Sakhalin and adjacent territories of Far East Russia. Acta Geologica Polonica, 54 (2), 273-312. Warszawa. The stratigraphy and ammonite faunas of the Cretaceous succession in Sakhalin are discussed. A high-resolution bio-stratigraphic zonation (24 zones in to...
Article
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The Campanian strata in the Wolbrom-Miechów area at Wierzchowisko, Jeżówka and Rzeżuśnia (i.e., the south-western part of the Miechów Trough, southern Poland) have been studied in some detail. Collections of macrofossils available to date include generally well-preserved and diverse cephalopods (ammonoids, coleoids), inoceramid bivalves and irregul...
Article
Study of several marine Santonian-Campanian successions from Sakhalin Island, Far East Russia, has revealed that evolution of the ammonites and inoceramid bivalves proceeded at different rates after the major faunal turnover at the (locally defined) Santonian-Campanian boundary. Sometimes changes in the inoceramid assemblages were more frequent and...
Article
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The marine Upper Cretaceous of the Bakony Mts. was generated by gravity mass flows. The Jákóhegy Breccia Member of the Polány Marl is a coarse-grained proximal mass flow, debris flow deposit, while the Rendek Member is its distal facies. The Ganna Member is built up of redeposited gaded silici- and calciclastic sediments.. Lower Maastrichtian “Pach...
Article
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The Santonian-Campanian boundary in Sakhalin marks a majour Cretaceous mass extinction event. In the late Santonian there was a decrease in the taxonomic diversity of ammonoids as well as significant changes in shell morphology which were probably related to a global regression event. However, the fauna of the Pacific region is endermic and precise...

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