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Wyszukujesz frazę "carboniferous" wg kryterium: Temat


Tytuł:
Revision of the amphibian genus Limnerpeton [Temnospondyli] from the Upper Carboniferous of the Czech Republic
Autorzy:
Milner, A R
Sequeira, S.E.K.
Powiązania:
https://bibliotekanauki.pl/articles/22128.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Temnospondyli
Carboniferous
Amphibia
Czech Republic
amphibian
Limnerpeton
paleontology
Dissorophoidea
Upper Carboniferous
Opis:
The Late Carboniferous amphibian genus Limnerpeton Fritsch, 1881 is revised on the basis of the type specimens of the eight original species described by Fritsch using material from Nýřany, Třemošná and Kounov, now in the Czech Republic. The type species Limnerpeton modestum is a nomen dubium restricted to a mandible that almost certainly belongs to an amphibamid temnospondyl but is not critically diagnostic. “Limnerpeton” laticeps and “Limnerpeton” macrolepis lectotypes are both small individuals of the same taxon as the later described Mordex calliprepes Steen, 1938 and thus form part of the hypodigm of Mordex laticeps comb. nov. “Limnerpeton” elegans is now Limnogyrinus elegans and is a member of the temnospondyl family Micromelerpetontidae. “Limnerpeton” obtusatum is a specimen of the microsaur Microbrachis pelikani. “Limnerpeton” dubium is an indeterminate tetrapod, probably either a temnospondyl or a pelycosaur. “Limnerpeton” difficile is a nomen dubium but the type is probably a small specimen of the tuditanomorph microsaur Crinodon limnophyes. “Limnerpeton” caducum is almost certainly a specimen of the ophiderpetontid aïstopod Oestocephalus granulosus. Several other described small temnospondyls from Nýřany are discussed and shown to be specimens of either Limnogyrinus elegans, Mordex laticeps or Amphibamidae incertae sedis. The tetrapod fauna at Nýřany includes four dissorophoid temnospondyls as proposed by Milner (1986) but with two changes in nomenclature. They comprise the branchiosaurid Branchiosaurus salamandroides, the micromelerpetontid Limnogyrinus elegans, the amphibamid Platyrhinops cf. lyelli and the primitive trematopid Mordex laticeps. These represent four of the five major dissorophoid families and demonstrate that the group had already diversified by the late Westphalian.
Źródło:
Acta Palaeontologica Polonica; 2003, 48, 1
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On a small Cochleosaurus described as a large Limnogyrinus [Amphibia, Temnospondyli] from the Upper Carboniferous of the Czech Republic
Autorzy:
Milner, A R
Sequeira, S.E.K.
Powiązania:
https://bibliotekanauki.pl/articles/21039.pdf
Data publikacji:
2003
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Carboniferous
Temnospondyli
Limnogyrinus
Czech Republic
Amphibia
Limnogyrinus elegans
Cochleosaurus
paleontology
Upper Carboniferous
Opis:
Limnogyrinus elegans (Fritsch) is the most primitive micromelerpetontid temnospondyl from the Upper Carboniferous of Nýřany, Czech Republic. Arecent revision of the taxon by Werneburg (1994) attributed to this species a skull in dorsal aspect which was significantly larger than any previously reported and showed evidence of snout elongation. Restudy of this specimen demonstrates it to be a skull, visible in ventral aspect, of a juvenile of Cochleosaurus bohemicus, a more primitive edopoid temnospondyl, which is frequent in the Nýřany assemblage. Werneburg’s diagnosis of Limnogyrinusis revised and the problems of constructing ontogenetic series are discussed.
Źródło:
Acta Palaeontologica Polonica; 2003, 48, 1
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Middle Palaeozoic chondrichthyans and the associated ichthyofauna from southern Poland : a review
Autorzy:
Ginter, Michał
Wilk, Olga
Powiązania:
https://bibliotekanauki.pl/articles/1835970.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
Chondrichthyes
Osteichthyes
Devonian
Carboniferous
Polska
Opis:
During the last sixty years, large collections of ichthyofauna, mainly isolated, microscopic, skeletal remains (ichthyoliths), from the Middle–Upper Devonian and Lower Carboniferous rocks of southern Poland have accumulated in the hands of Polish palaeontologists and in palaeontological institutions. Some parts of these collections were described in unpublished dissertations and others were published in dispersed papers, dealing mostly with selected regions or taxa. This review summarises the available data from the following regions: the Holy Cross Mountains, the Cracow Upland, the Sudetes and the Lublin Coal Basin (in the latter two cases, single localities). Altogether, 29 chondrichthyan species were identified and a few more still require classification. Of the Sarcopterygii, three species of onychodontiforms and one of the actinistians were found, in addition to a collection of dipnoans that was described much earlier. A few morphological types were distinguished among actinopterygian scales; otherwise the actinopterygian fossils are not referred to any lower-level taxon, and the same applies to the acanthodians. There were several attempts in the past to apply Polish ichthyoliths in biostratigraphy and palaeoecology, but after all these years, it appears that such propositions have only limited significance.
Źródło:
Annales Societatis Geologorum Poloniae; 2021, 91, 3; 253-286
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Schellwienia arctica (Fusulinidae) from the Carboniferous-? Permian strata of the Treskelodden Formation, south Spitsbergen
Autorzy:
Błażejowski, Błażej
Hołda-Michalska, Aleksandra
Michalski, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/2051921.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Arctic
Spitsbergen
Foraminifera
Carboniferous-? Permian
Źródło:
Polish Polar Research; 2006, 27, 1; 91-103
0138-0338
2081-8262
Pojawia się w:
Polish Polar Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Complementary data on the palynostratigraphy of the Carboniferous succession of SW Poland
Autorzy:
Górecka-Nowak, A.
Powiązania:
https://bibliotekanauki.pl/articles/2059084.pdf
Data publikacji:
2010
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Carboniferous
palynostratigraphy
Variscan Foreland Basin
Opis:
New palynostratigraphical data concerning the Carboniferous sedimentary succession of SW Poland has been obtained from the Czerńczyce IG 1 borehole and the Brońsko boreholes on the northern slope of the Wolsztyn-Leszno High, where the oldest rocks were expected. The miospore assemblages recovered from the Czerńczyce IG 1 borehole allowed assignment of the interval studied to the Marsdenian (Namurian B) and Yeadonian (Namurian C). These results, supplemented with previous palynostratigraphical data, refute the existence of a stratigraphic gap between the early Namurian and Duckmantian (Westphalian B). The reinterpretation of the unpublished miospore results of Górecka et al. (2000b, 2001a) from the Carboniferous rocks from the Brońsko boreholes, also indicate that they should actually be assigned to the upper Marsdenian and Yeadonian. All analysed miospore assemblages are mixed and contain abundant reworked specimens. The results above complement previous opinions and permit a re-evaluation of the stratigraphy of the Carboniferous siliciclastic succession of SW Poland. Its sedimentation was certainly initiated in the earliest Namurian or earlier and probably lasted without long gaps until the Stephanian. The abundance and common occurence of reworked miospores indicate the age of rocks eroded during Carboniferous deposition. The lithological and palynofacial features of the late Namurian rocks from the Czerńczyce IG 1 borehole may be interpreted as a record of the shallowing of the sedimentary basin, including the possibility that some of the sedimentation occured in continental conditions. This means that the transition from the deep marine environment to shallow-water or even continental habitats likely had already taken place by the late Namurian. This suggestion, together with the tectonic deformation dated as post-Bolsovian, corresponds to the timing of the deposition and deformation in the German part of the Variscan Foreland Basin.
Źródło:
Geological Quarterly; 2010, 54, 3; 337-356
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Palynological data from the Siciny IG 1 and Marcinki IG 1 bore holes and their significance to the interpretation of the Carboniferous succession of SW Poland
Autorzy:
Górecka-Nowak, A.
Powiązania:
https://bibliotekanauki.pl/articles/2059199.pdf
Data publikacji:
2009
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Carboniferous
palynostratigraphy
redeposition
tectonical deformation
Opis:
This paper describes in detail palynological data from the Carboniferous siliciclastic rock succession from the Siciny IG 1 and Marcinki IG 1 boreholes (SW Poland), that allow reinterpretation of the local stratigraphy. Two rock series of different ages were recognized. Rocks from the Siciny IG 1 section were assigned to the upper Arnsbergian–Alportian (the Lycospora subtriquetra–Kraeuselisporites ornatus (SO) Biozone) and the Bolsovian (the Torispora securis–Torispora laevigata (SL) Biozone). In the upper part of the Carboniferous section in the Marcinki IG 1 section the upper Arnsbergian–Alportian and Duckmantian interval (the Lycospora subtriquetra–Kraeuselisporites ornatus (SO) and the Microreticulatisporites nobilis–Florinites junior (NJ) biozones respectively) were recognized, although the quality of the palynological data from the latter borehole was generally poor. These results conflict with a Viséan age for these rocks interpreted from fossil marine macrofaunas and indicate the reworked nature of the macrofaunas. Possible means of the macrofaunal reworking, sedimentary environment and thermal history, based on the palynological data, are discussed. Repetition of the stratigraphical succession, probably due totectonic deformation of the rocks in both sections, is demonstrated and indicate a post-Bolsovian age for the deformation event.
Źródło:
Geological Quarterly; 2009, 53, 2; 167-186
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Variation of coal quantity accumulated in the Mississippian to Pennsylvanian coal seams (Upper Silesia and Lublin Coal basins, Poland) : a reflection of changes in climate and CO2 availability
Autorzy:
Nieć, Marek
Sermet, Edyta
Salamon, Ewa
Powiązania:
https://bibliotekanauki.pl/articles/27323308.pdf
Data publikacji:
2023
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
coal seams
resources
Carboniferous
climate
Opis:
Many coal seams of varied thickness and aerial extent occur in the Upper Silesia and Lublin basins within Mississippian and Pennsylvanian coal-bearing deposits. Well-documented data on coal quantity in the seams identified allows visualization of their variation within the stratigraphic succession and analysis of the time-dependent coal accumulation process. Some characteristic features of this variation were observed. Coal seams of the Mississippian age (Serpukhovian, Paralic Series), formed within a near-shore environment, most often constitute small resources. There were only two intervals of increased coal accumulation in seams of >100 million tons, in the lower and uppermost parts of the Paralic Series. Within the Pennsylvanian coal-bearing succession of terrestrial fluvio-lacustrine origin, a specific, wave-like pattern of seam resource variations and four intervals of increased coal accumulation are observed. In the Lublin Coal Basin, the Lublin Beds only, deposited during the Late Bashkirian, are coal-bearing, in which a bell-shaped pattern of seam resource variation in the stratigraphic succession is observed. The location of enhanced coal accumulation events in the stratigraphic succession suggests their repetition at ~1–4 My intervals. The characteristic features of the quantitative variation in these coal seams may be correlated with glacial-interglacial and climate humidity changes, and interpreted as a response to variable volcanogenic CO2 supply.
Źródło:
Geological Quarterly; 2023, 67, 1; art. no. 8
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Toward the origin of amniotes: Diadectomorph and synapsid footprints from the early Late Carboniferous of Germany
Autorzy:
Voigt, S.
Ganzelewski, M.
Powiązania:
https://bibliotekanauki.pl/articles/20515.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
amniote
tetrapod
diadectomorph
footprint
Late Carboniferous
Carboniferous
paleontology
Germany
Ichniotherium
Dimetropus
Cotylosauria
tetrapod track
Opis:
Ichnotaxonomic revision of two extended sequences of large tetrapod footprints from the Westphalian A Bochum Formation of western Germany suggests assignment of the specimens to the well−known Permo−Carboniferous ichnogenera Ichniotherium and Dimetropus. Trackway parameters and imprint morphology strongly support basal diadectomorphs and “pelycosaurian”−grade synapsid reptiles, respectively, as the most likely trackmakers. The ichnofossils thereby extend the first appearance of these two important groups of basal tetrapods by about 5–10 million years, to the early Late Carboniferous, which is in accordance with the minimum age for the evolutionary origin of the clades following widely accepted phylogenetic analyses. These trackways provide not only direct evidence bearing on activity and behaviour of large terrestrial tetrapods close to the origin of amniotes, but also serve as a valuable benchmark for the assessment of controversially interpreted vertebrate tracks from other localities of similar age.
Źródło:
Acta Palaeontologica Polonica; 2010, 55, 1
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New bizarre micro-spiriferid brachiopod from the Early Carboniferous of China
Autorzy:
Sun, Y
Balinski, A.
Ma, X.
Zhang, Y.
Powiązania:
https://bibliotekanauki.pl/articles/22087.pdf
Data publikacji:
2004
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Carboniferous
verneuiliid brachiopod
brachiopod
China
Muhua Formation
Verneuiliidae
Early Carboniferous
Brachiopoda
Changshunella yangi
paleontology
Opis:
The verneuiliid brachiopod Changshunella yangi gen. et sp. nov. is described from the Early Carboniferous Muhua Formation of Guizhou, China. This rather unusual form is characterized by having very small shell dimensions (2.6–4 mm in length), a very high flat procline ventral interarea, and by having three prominent plications on both valves that are arranged in opposed folding; the last feature is characteristic for the family Verneuiliidae. We suggest that the family has been derived from an offshoot of the stock that produced the superfamilies Spiriferoidea, Paeckelmanelloidea, and Brachythyridoidea by developing opposed folding and loss of dental plates or dental adminicula as exemplified by Verneuilia and Changshunella gen. nov.
Źródło:
Acta Palaeontologica Polonica; 2004, 49, 2
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of geologic and economic parameters on the (e)CBM-development in the Campine Basin (Belgium)
Autorzy:
Van Tongeren, P.
Dreesen, R.
Laenen, B.
Dusar, M.
Powiązania:
https://bibliotekanauki.pl/articles/1204902.pdf
Data publikacji:
2002
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
coal basins
coalbed methane
Carboniferous
Opis:
The Belgian Campine Basin is part of a large paralic north-western coal basin of Carboniferous age, which also extends northwards and eastwards into the Netherlands and Germany. The Westphalian coal-bearing deposits are disconformably covered by Late Palaeozoic or Mesozoic strata and generally show a moderate dip to the north or north-east. An important transpressional fault zone of Palaeozoic age divides the basin into western and eastern sub-basins. During the Carboniferous, syntectonic differences in palaeo-subsidence caused remarkable differences in the burial history and sedimentological styles of these sub-basins and consequently, in their peat and final coal formation, its setting and CBM-potential.Large coal reserves still remain The Belgian Campine Basin is part of a large paralic north-western coal basin of Carboniferous age, which also extends northwards and eastwards into the Netherlands and Germany. The Westphalian coal-bearing deposits are disconformably covered by Late Palaeozoic or Mesozoic strata and generally show a moderate dip to the north or north-east. An important transpressional fault zone of Palaeozoic age divides the basin into western and eastern sub-basins. During the Carboniferous, syntectonic differences in palaeo-subsidence caused remarkable differences in the burial history and sedimentological styles of these sub-basins and consequently, in their peat and final coal formation, its setting and CBM-potential.Large coal reserves still remain in the Campine basin at relatively shallow depths (above 1500 m). Based on the distribution of these coal reserves and their actual rank, an overall CBM-content for the complete basin, as well as for specific anomalous zones within the basin, has been calculated by using an empirically determined (mining) rank / gas relationship. In this manner, six (6) areas have been established in which the gas concentration is significantly (5 times) above a set general threshold value. Together they represent a significant, minimal producible (E)nhanced CBM "target-volume" of about 53 x 109 m3 of methane. The various target areas demand different approaches in any (E)CBM development. In the southern parts of both sub-basins, the remaining changes in porosity/permeability and stress conditions of the rocks, caused by the former mining activities, have to be included into the (E)CBM-development schemes. More towards the north and north-east, any use of preserved coal mining influences is simply not possible. Here, both the sedimentological and structural setting of coals will determine the predominant geologic (E)CBM-development factors.Possibilities for ECBM-production by CO2, N2 or even "raw" flue gases are largely present within or very close to the most prolific CBM-areas. Gas-pipelines and other infrastructure needed for (E)CBM-development are present in the basin, too. The basin is situated within a low to moderately populated part of the country, which is actually rapidly economically expanding. This certifies a steadily increasing gas-consumer market in the next decades.
Źródło:
Polish Geological Institute Special Papers; 2002, 7; 271-280
1507-9791
Pojawia się w:
Polish Geological Institute Special Papers
Dostawca treści:
Biblioteka Nauki
Artykuł

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