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    Wyświetlanie 1-13 z 13
    Tytuł:
    First record of catacrinid crinoid from the Lower Permian of Spitsbergen
    Autorzy:
    Gorzelak, Przemysław
    Uchman, Alfred
    Hanken, Nils−Martin
    Błażejowski, Błażej
    Powiązania:
    https://bibliotekanauki.pl/articles/2051397.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Arctic
    Svalbard
    crinoid
    Permian
    Źródło:
    Polish Polar Research; 2013, 2; 139-150
    0138-0338
    2081-8262
    Pojawia się w:
    Polish Polar Research
    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:
    New taxa of tabulate corals from the Lower Permian of Spitsbergen and their stable isotopic data
    Autorzy:
    Nowiński, Aleksander
    Zapalski, Mikołaj K.
    Powiązania:
    https://bibliotekanauki.pl/articles/2052407.pdf
    Data publikacji:
    2001
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Arctic
    Spitsbergen
    Lower Permian
    paleontology (Anthozoa)
    Źródło:
    Polish Polar Research; 2001, 22, 2; 81-88
    0138-0338
    2081-8262
    Pojawia się w:
    Polish Polar Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Paleoecology of Productacea (Brachiopoda) from the Permian Kapp Starostin Formation, Spitsbergen
    Autorzy:
    Małkowski, Krzysztof
    Powiązania:
    https://bibliotekanauki.pl/articles/2053232.pdf
    Data publikacji:
    1988
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Arctic
    Spitsbergen
    Permian
    facies
    paleontology (Brachiopoda)
    Źródło:
    Polish Polar Research; 1988, 9, 1; 3-60
    0138-0338
    2081-8262
    Pojawia się w:
    Polish Polar Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A first record of late Middle Permian actinopterygian fish from Anatolia, Turkey
    Autorzy:
    Hoşgör, I.
    Štamberg, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/139045.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Actinopterygians
    late Middle Permian
    SE Turkey
    Palaeotethys
    perm
    Turcja
    Paleotetyda
    Opis:
    The Middle–Upper Permian of the Gomaniibrik Formation, of the Tanin Group, in south-east Anatolia, close to the Iraq border, yielded moderately preserved fish remains. Two species, Palaeoniscum freieslebeni and Pygopterus cf. nielseni, known so far only from the Upper Permian deposits of the Zechstein Basin in western Central Europe, were recognised. This late Middle Permian Anatolian record significantly widens the geographical range of these actinopterygians into the equatorial Palaeotethys Realm.
    Źródło:
    Acta Geologica Polonica; 2014, 64, 2; 147-159
    0001-5709
    Pojawia się w:
    Acta Geologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Stable isotopic records of the Kapp Starostin Formation (Permian), Spitsbergen
    Autorzy:
    Gruszczyński, Michał
    Małkowski, Krzysztof
    Powiązania:
    https://bibliotekanauki.pl/articles/2053255.pdf
    Data publikacji:
    1987
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Arctic
    Spitsbergen
    Late Permian
    stable isotopes О and C
    paleotemperatures
    Źródło:
    Polish Polar Research; 1987, 8, 3; 201-215
    0138-0338
    2081-8262
    Pojawia się w:
    Polish Polar Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Early diagenetic siderite in the Panorama Point Beds (Radok Conglomerate, Early to Middle Permian), Prince Charles Mountains, East Antarctica
    Autorzy:
    Krajewski, Krzysztof P.
    Gonzhurov, Nikolai A.
    Laiba, Anatoly A.
    Tatur, Andrzej
    Powiązania:
    https://bibliotekanauki.pl/articles/2051608.pdf
    Data publikacji:
    2010
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Antarctica
    Prince Charles Mts
    Radok Conglomerate
    Permian
    siderite
    fresh−water environment
    Źródło:
    Polish Polar Research; 2010, 2; 169-194
    0138-0338
    2081-8262
    Pojawia się w:
    Polish Polar Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Geology and taphonomy of the base of the Taquaral Member, Irati Formation (Permian, Paraná Basin), Brazil
    Autorzy:
    Chahud, A.
    Petri, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/138649.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    taphonomy
    permian
    actinopterygii
    sarcopterygii
    Chondrichthyes
    tafonomia
    perm
    promieniopłetwe
    mięśniopłetwe
    ryby chrzęstnoszkieletowe
    Opis:
    The taphonomy of Early Permian vertebrates from a sandy facies at the base of the Taquaral Member, Irati Formation, was surveyed in order to acquire data for the interpretation of the sedimentary processes and paleoenvironment of deposition. Six outcrops from the Rio Claro municipality and surrounding areas, from the Brazilian State of São Paulo, were investigated. The vertebrate groups are Chondrichthyes (Xenacanthiformes, Ctenacanthiformes and Petalodontiformes), Osteichthyes (Actinopterygii and Sarcopterygii) and Tetrapodomorpha. They occur as loose teeth, scales, spines and bone remains. The sandy facies is characterized by fining upward deposition. The coarser sandstone immediately above the underlying Tatuí Formation is rich in Chondrichthyes. However, the fine sandstone above, immediately beneath the silty shale facies, is devoid of Chondrichthyes, though Osteichthyes scales, teeth and bones were present. The taphonomy is important for inferring sedimentary processes and then the paleoenvironments. The poor sorting of the sandstone and the presence of fossils that are mostly abraded or worn are indicative of a high energy environment. In contrast, the presence of fossils in a good state of preservation, some without abrasion and breakages are indicative of only limited transport. Differences of fossil spatial density, numbers of specimens and taxa may be explained by the dynamics of deposition, from details of the palaeoenvironment can be obtained.
    Źródło:
    Acta Geologica Polonica; 2015, 65, 3; 379-387
    0001-5709
    Pojawia się w:
    Acta Geologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Permian and Triassic in the Albanian Alps
    Autorzy:
    Gaetani, M.
    Meço, S.
    Rettori, R.
    Henderson, C. M.
    Tulone, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/138890.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Permian
    Triassic
    stratigraphy
    Albanian Alps
    microfacies
    conodonts
    foraminifers
    perm
    trias
    Stratygrafia
    Góry Północnoalbańskie
    mikrofacje
    konodonty
    otwornice
    Opis:
    The sedimentary succession of the Permian to Middle Triassic of the Albanian Alps is described, as part of the eastern Adria passive margin towards the Tethys. A carbonate ramp deepening towards NE in present day coordinates developed during the Middle Permian and was affected by block faulting with the deposition of carbonate breccia. The Early Triassic was characterized by intense terrigenous deposition with several cobble conglomerate units up to 80 m-thick, and by oolitic carbonate shoals. The fine clastic deposition ended gradually during the earliest Anisian and a wide calcarenitic ramp occupied the area, with small local carbonate mounds. Basinward, the red nodular limestone of the Han Bulog Formation was interbedded with calcarenitic material exported from the ramp. Drowning to more open conditions occurred towards the end of the Pelsonian. Subsequently, cherty limestone and tuffitic layers spread over the entire area. Towards the end of the Ladinian, with the end of the volcanic activity, red pelagic limestone was deposited locally for a short period. By the latest Ladinian most of the area returned to shallow-water conditions, with a peritidal carbonate platform. In the Theth area, in contrast, a basin with black organic-rich dolostone and limestone developed which seems to be unique in that part of the Adria passive margin. The occurrence of cobble conglomerate units in the Lower Triassic testifies to very active block faulting and high accommodation, not yet described for the area.
    Źródło:
    Acta Geologica Polonica; 2015, 65, 3; 271-295
    0001-5709
    Pojawia się w:
    Acta Geologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Orthacanthus platypternus (Cope, 1883) (Chondrichthyes: Xenacanthiformes) teeth and other isolated vertebrate remains from a single horizon in the early Permian (Artinskian) Craddock Bonebed, lower Clear Fork Group, Baylor County, Texas, USA
    Autorzy:
    Johnson, G. D.
    Powiązania:
    https://bibliotekanauki.pl/articles/138953.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Orthacanthus platypternus
    early Permian
    Craddock Bonebed
    Texas
    ryby chrzęstnoszkieletowe
    ryby chrzęstne
    chrzęstniki
    Chondrichthyes
    wczesny perm
    Teksas
    Opis:
    An unusual 6–8 cm layer of prismatic cartilage and matrix containing some 8,800 teeth, coprolites, incomplete occipital spines, and denticles of Orthacanthus platypternus (Cope, 1883) occurs in the lower Permian (Artinskian) Craddock Bonebed in Texas, USA. It is the only species of shark present in the Clear Fork Group except for three worn Xenacanthus Beyrich, 1848 occipital spine fragments and two teeth of ?Lissodus (Polyacrodus) zideki (Johnson, 1981) (Hybodontoidei), both being the first occurrences in this unit. Analysis of measurements of teeth with complete bases randomly selected from 3,050 initially available teeth failed to reveal the presence of sexual dimorphism or the discrete presence of juveniles as expected, based on an independent study which identified the presence of Orthacanthus juvenile occipital spines. A few highly symmetrical small teeth are present, which had not been previously observed in the Texas lower Permian. They may be symphyseals and restricted only to juveniles. Other unusual teeth include germinal teeth and deformed teeth, both of which occur in the Clear Fork and underlying Wichita groups. One tooth displays an apparent example of the equivalent of an “enamel pearl” on one of its cusps. The most unusual teeth are those that appear to have undergone various stages of resorption. Only the lingual margin of the base is affected in which the apical button is resorbed to varying degrees until only the labial margin with the basal tubercle and the three cusps are all that remain. If the teeth were undergoing resorption, then the perplexing problem is why the apical button is resorbed and not the superjacent basal tubercle. Other vertebrate remains include palaeoniscoid scales and teeth and unidentified tetrapod bone fragments, jaw fragments, and teeth. Rare fragments of bones (scales?) bear a “comb edge” which have not been previously observed in the Texas lower Permian.
    Źródło:
    Acta Geologica Polonica; 2018, 68, 3; 421-436
    0001-5709
    Pojawia się w:
    Acta Geologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A revision of Campyloprion Eastman, 1902 (Chondrichthyes, Helicoprionidae), including new occurrences from the Upper Pennsylvanian of New Mexico and Texas, USA
    Autorzy:
    Itano, W. M.
    Lucas, S. G.
    Powiązania:
    https://bibliotekanauki.pl/articles/139067.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    carboniferous
    permian
    eugeneodontiformes
    helicoprionidae
    edestoidea
    Chondrichthyes
    geometric morphometrics
    karbon
    perm
    ryby chrzęstnoszkieletowe
    ryby chrzęstne
    chrzęstniki
    morfometria geometryczna
    Opis:
    Campyloprion Eastman, 1902 is a chondrichthyan having an arched symphyseal tooth whorl similar to that of Helicoprion Karpinsky, 1899, but less tightly coiled. The holotype of Campyloprion annectans Eastman, 1902, the type species of Campyloprion, is of unknown provenance, but is presumed to be from the Pennsylvanian of North America. Campyloprion ivanovi (Karpinsky, 1922) has been described from the Gzhelian of Russia. A partial symphyseal tooth whorl, designated as Campyloprion cf. C. ivanovi, is reported from the Missourian Tinajas Member of the Atrasado Formation of Socorro County, New Mexico, USA. Partial tooth whorls from the Virgilian Finis Shale and Jacksboro Limestone Members of the Graham Formation of northern Texas, USA, are designated as Campyloprion sp. Two partial tooth whorls from the Gzhelian of Russia that were previously referred to C. ivanovi are designated as Campyloprion cf. C. annectans. The age of Toxoprion lecontei (Dean, 1898), from Nevada, USA, is corrected from the Carboniferous to the early Permian. An alternative interpretation of the holotype of T. lecontei is presented, resulting in a reversal of its anterior-to-posterior orientation. The genera Helicoprion, Campyloprion, and Shaktauites Tchuvashov, 2001 can be distinguished by their different spiral angles.
    Źródło:
    Acta Geologica Polonica; 2018, 68, 3; 403-419
    0001-5709
    Pojawia się w:
    Acta Geologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-13 z 13

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