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The first trigonotarbid arachnid from Ukraine

Dunlop Jason A., Dernov Vitaly S.

Acta Geologica Polonica

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2023

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Vol. 73, no. 2

181--187

EN

The extinct arachnid order Trigonotarbida Petrunkevitch, 1949 is reported here for the first time from Ukraine. The material consists of an opisthosoma preserved in ventral view from the upper Carboniferous (lower Moscovian; Paralegoceras–Eowellerites ammonoid zone) of the Gorlivka locality in the Donets Basin, eastern Ukraine. Formal assignment to a family or genus is difficult, but the preserved ventral anatomy is consistent with a member of the families Aphantomartidae Petrunkevitch, 1945, Kreischeriidae Haase, 1890 or Eophrynidae Karsch, 1882. It is noteworthy for expanding the known distribution of trigonotarbids in Europe and is only the second Palaeozoic arachnid to be formally described from Ukraine; the other being the carapace of a whip scorpion (Thelyphonida Latreille, 1804) from Lomovatka in the Luhansk Region, also in the Donets Basin.

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Bashkirian Rugosa (Anthozoa) from the Donets Basin (Ukraine). Part 10. The Family Krynkaphyllidae fam. nov.

Fedorowski Jerzy

Acta Geologica Polonica

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2021

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Vol. 71, no. 1

53--101

EN

The known occurrence of corals distinguished here in the new Family Krynkaphyllidae varies at the subfamily level. Those of the Subfamily Krynkaphyllinae subfam. nov. are so far almost unknown from outside of the Donets Basin. In contrast, those of the Subfamily Colligophyllinae subfam. nov. are common, possibly ranging from the lower Viséan Dorlodotia Salée, 1920, a potential ancestor of the family, to the Artinskian Lytvophyllum tschernovi Soshkina, 1925. They bear different generic names, but were all originally described as fasciculate colonial. A detailed study of Lytvophyllum dobroljubovae Vassilyuk, 1960, the type species of Colligophyllum gen. nov., challenges that recognition in that at least some of those taxa are solitary and gregarious and/or protocolonial. As such, solitary, protocolonial and, probably, fasciculate colonial habits are accepted in the Colligophyllinae subfam. nov., whereas the Krynkaphyllinae subfam. nov. contains only solitary taxa. The resemblance to the Suborder Lonsdaleiina Spasskiy, 1974 led to the analysis of families included in that suborder by Hill (1981) in the context of their relationship, or homeomorphy, to Krynkaphyllidae fam. nov. This question primarily concerns the Family Petalaxidae Fomichev, 1953; a relationship with the Family Geyerophyllidae Minato, 1955, is more distant, if one exists. The distinct, parallel stratigraphic successions of taxa within two subfamilies of the Krynkaphyllidae fam. nov. document their probably common roots and early divergence. However, a lack of robust data precludes an interpretation or treatment of those successions as phylogenetic. The absence of key stratigraphic and morphologic data meant that eastern Asiatic taxa have not been considered in these successions; however, morphological similarities allow for their tentative inclusion within the Krynkaphyllidae fam. nov. The following new taxa are introduced: Krynkaphyllidae fam. nov., Krynkaphyllinae subfam. nov., Colligophyllinae subfam. nov., Krynkaphyllum gen. nov., Colligophyllum gen. nov., Protokionophyllum feninoense sp. nov., Krynkaphyllum multiplexum sp. nov., Krynkaphyllum validum sp. nov., and three species of Protokionophyllum Vassilyuk in Aizenverg et al., 1983 left in open nomenclature.

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Bashkirian Rugosa (Anthozoa) from the Donets Basin (Ukraine). Part 9. The Subfamily Dirimiinae, subfam. nov.

Fedorowski Jerzy, Ohar Victor V.

Acta Geologica Polonica

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2019

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Vol. 69, no. 4

583--616

EN

A new Subfamily Dirimiinae of the Family Kumpanophyllidae Fomichev, 1953 is introduced on the basis of Dirimia gen. nov., which is represented by six new named species and three species left in open nomenclature. The new species are Dirimia multiplexa, D. similis, D. recessia, D. composita, D. extrema, D. nana, Dirimia sp. 1, Dirimia sp. 2 and Dirimia sp. 3. The progressing atrophy of the columnotheca, leading to its total reduction in extreme species, and the occurrence of an axial structure instead of a compact pseudocolumella established in these species are accepted as differences exceeding the genus level. All specimens assigned to this subfamily were derived from the same Limestone F1 of the Donets Basin, and mostly from the same locality. The reasons for their split into a relatively large number of species are: 1) an increased radiation typical for faunal turnover times; 2) a delay in the appearance of differentiated skeletal characters relative to the appearance of genetic differences large enough to characterise different species; 3) a bias in preservation of fossil remnants by comparison to living populations, amplified by biases in the collections available for study by comparison to the total number of specimens fossilised.

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Early Bashkirian Rugosa (Anthozoa) from the Donets Basin (Ukraine). Part 6. The Family Aulophyllidae Dybowski, 1873

Fedorowski J.

Acta Geologica Polonica

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2017

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Vol. 67, no. 4

459--514

EN

Seven genera (one new), belonging to four subfamilies, seven named species (six new), four species left in open nomenclature and two specimens included in this paper as unnamed Aulophyllidae are described from strata ranging from the lowermost Bashkirian Limestone D510 to the lower Bashkirian Limestone F1. A new genus: Voragoaxum and six new species: Dibunophyllum medium, Dibunophylloides columnatus, D. paulus, D. similis, Voragoaxum cavum and Rozkowskia lenta are introduced. Comparison of the ontogeny of the earliest Bashkirian species of Nina Fedorowski, 2017a and Dibunophylloides Fomichev, 1953 suggest the derivation by descent of the Family Bothrophyllidae from the Subfamily Dibunophyllinae. This means that true bothrophylla are absent in the Mississippian strata of the Western European Province and, perhaps, in the contemporaneous strata of other areas as well.

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Early Bashkirian Rugosa (Anthozoa) from the Donets Basin, Ukraine. Part 4. Cordibia, a new protocolonial genus

Fedorowski J., Ogar V. V.

Acta Geologica Polonica

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2013

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Vol. 63, no. 3

297--341

EN

Cordibia pumila gen. et sp. nov. (Aulophyllidae, Dibunophyllinae) from the Lower Bashkirian E1 Limestone of the Donets Basin, Ukraine is described. The term "protocolony" is formally defined as a growth form intermediate between the solitary and colonial. Protocolonies consist of protocorallites and verticils of non-reproductive offsets [i.e., the lost structures]. The early ontogeny of a protocorallite is compared to the blastogeny in the same species in order to establish characters in common during both processes and to document the usefulness of blastogeny for phylogenetic reconstructions. The short duration and abundance of the occurrence (Limestones E1up acme, E11) of that species also makes it a good marker for the lowest Feninian (= Krasnopolyanian) strata in the Donets Basin.

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Early Bashkirian Rugosa (Anthozoa) from the Donets Basin, Ukraine. Part 2, On the genera Axisvacuus gen. nov. and Falsiamplexus Fedorowski, 1987

Fedorowski J.

Acta Geologica Polonica

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2009

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Vol. 59, no. 3

283-317

EN

Five species belonging to two genera: Falsiamplexus Fedorowski, 1987 and Axisvacuus gen. nov. are described in detail and their species content and relationships are discussed. Both genera are perhaps related to Rotiphyllum and were probably derived from it, but relationship of Falsiamplexus to Bradyphyllum Grabau, 1928 cannot be excluded. The new genus Axisvacuus is represented by four species, of which three are new: A. verus (type species), A. extendus and A. semicirculatus. Stratigraphic ranges of species described are compared to the western European and Russian standards (Table 1). Some possible palaeogeographic implications of the occurrence of Axisvacuus postumus (Smith, 1931) and Falsiamplexus reductus Fedorowski, 1987 are briefly discussed.

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Early Bashkirian Rugosa (Anthozoa) from the Donets Basin, Ukraine. Part 1, Introductory considerations and the genus Rotiphyllum Hudson, 1942

Fedorowski J.

Acta Geologica Polonica

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2009

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Vol. 59, no. 1

1-37

EN

The present paper is the first in a series devoted to the Early Bashkirian Rugosa (Anthozoa) from the Donets Basin. The history of investigation and current status of Early Bashkirian stratigraphy is discussed in the context of the Donets Basin strata. Corals of that time interval are extremely rare worldwide and those from the Donets Basin have never been described in detail. Four of the five species described are new: Rotiphyllum asymmetricum sp. nov., R. latithecatum sp. nov., R. simulatum sp. nov., and R. voznesenkae sp. nov. Two species are left in open nomenclature. The synonymy, species content and critical review of species potentially belonging to the genus Rotiphyllum are reviewed.

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Relation between the petrographic and chemical properties of weakly reduced and reduced coals of donets basin

Butuzova L., Marinov S., Matsenko G., Skirtochenko S., Turchanina O., Isajeva L., Krzton A.

Polish Geological Institute Special Papers

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2002

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Vol. 7

45-50

EN

Low-rank coals of the same rank level but of different genetic types and different tendency to self-ignition have been studied by means of coal chemistry. It has been shown that oxygen- and sulphur-containing functional groups, especially bridge-bonds, are responsible for the structure and properties of pyrolysis products.

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A database supported 3d-geometric model for computer based assessment and volumetric calculations of hard coal deposits in the donets basin; results of a joint Ukrainian-German project

Juch D., Thomsen A., Spirina O., Karlashenko I., Piskovaya T., Ryabcev R.

Polish Geological Institute Special Papers

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2002

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Vol. 7

119-124

EN

In an attempt to make use of scientific potential for geological evaluation like resource management, a join German-Ukrainian project was carried out during the last four years. The aim of this project was the introduction and application in the Donets Basin of a computer based coal resources assessment method originally developed for the assessment of the German hard coal deposits and was called KVB-model. The combination and adaptation of the old conception of the KVB-model with modern graphic allows for the combination of the 3D structure plans of the seams with different attributes like seam and coal property data (thickness, ash, sulphur, metamorphism, rank), state of exposure (mining zone, prospective), gas content of coal, etc. A further extension of the system may consist of the interpretation of the rocks in addition to the seams already represented in the stratigraphic profile. This would allow the application be used for stratified geological units of any kind.