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    Wyświetlanie 1-5 z 5
    Tytuł:
    A new large capitosaurid temnospondyl amphibian from the Early Triassic of Poland
    Autorzy:
    Sulej, T.
    Niedzwiedzki, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/21788.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    new genus
    large capitosaurid amphibian
    Early Triassic
    Triassic
    Polska
    temnospondyl amphibian
    Temnospondyli
    Capitosauridae
    Buntsandstein
    Spathian
    Olenekian
    Holy Cross Mountains
    paleontology
    deposit
    anatomy
    Opis:
    The Early Triassic record of the large capitosaurid amphibian genus Parotosuchus is supplemented by new material from fluvial deposits of Wióry, southern Poland, corresponding in age to the Detfurth Formation (Spathian, Late Olenekian) of the Germanic Basin. The skull of the new capitosaurid shows an “intermediate” morphology between that of Paroto− suchus helgolandicus from the Volpriehausen−Detfurth Formation (Smithian, Early Olenekian) of Germany and the slightly younger Parotosuchus orenburgensis from European Russia. These three species may represent an evolutionary lineage that underwent a progressive shifting of the jaw articulation anteriorly. The morphology of the Polish form is dis− tinct enough from other species of Parotosuchus to warrant erection of a new species. The very large mandible of Parot− osuchus ptaszynskii sp. nov. indicates that this was one of the largest tetrapod of the Early Triassic. Its prominent anatomi− cal features include a triangular retroarticular process and an elongated base of the hamate process.
    Źródło:
    Acta Palaeontologica Polonica; 2013, 58, 1
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A new Early Triassic gastropod genus and the recovery of gastropods from the Permian-Triassic extinction
    Autorzy:
    Nutzel, A
    Powiązania:
    https://bibliotekanauki.pl/articles/22642.pdf
    Data publikacji:
    2005
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    gastropod
    Werfenella
    Alps Mountains
    Purpurinidae
    Werfen Formation
    Olenekian
    new genus
    mass extinction
    Early Triassic
    Triassic
    Gastropoda
    Permian
    Turbo rectecostatus
    paleontology
    Opis:
    The common Early Triassic (Olenekian) gastropod Turbo rectecostatus from the upper Werfen Formation of the Alps is placed in the new genus Werfenella. Elimination of the wrong or outdated generic assignments of Late Palaeozoic and Early Mesozoic gastropods to archetypical genera such as Turbo, Trochus, or Natica (all with Recent type species) represents an important step toward understanding the evolutionary history of the gastropods across the Permian/Triassic mass−extinction event. The first appearance of Werfenella in the Olenekian, as well as the origination of other groups of gastropods, suggests an early turnover in the aftermath of the end−Permian mass extinction event. The relatively large size of Werfenella (up to 35 mm) sheds doubt on assertions that all Early Triassic gastropods are microgastropods (Lilliput effect). The new genus is placed in the caenogastropod family Purpurinidae and represents its earliest occurrence. However, a placement of Werfenella in the Archaeogastropoda (Vetigastropoda) is also possible because it resembles the paraturbinid genus Chartronella. The characteristic Werfenella rectecostata–Natiria costata gastropod association from the Werfen Formation is not found in the approximately contemporaneous Sinbad Limestone of the Moenkopi Formation (Utah, USA) nor elsewhere outside Europe. This suggests that the similarities between Olenekian gastropod faunas from the Tethys and western North America are more limited than previously thought.
    Źródło:
    Acta Palaeontologica Polonica; 2005, 50, 1
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Warstwy kościonośne z Dactylosaurus (Reptilia, Sauropterygia) z retu (trias dolny, olenek) Opolszczyzny
    Bonebeds with Dactylosaurus (Reptilia, Sauropterygia) from the Röt (Lower Triassic, Olenekian) in the Opole Silesia region (S Poland)
    Autorzy:
    Kowal-Linka, M.
    Bodzioch, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2074913.pdf
    Data publikacji:
    2012
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    reptile
    Dactylosaurus
    fish
    bonebed
    Lower Triassic
    Olenekian
    Opole Silesia
    gad
    ryba
    warstwa kośionośne
    trias dolny
    olenek
    Opolszczyzna
    Opis:
    Two bonebeds with numerous remains of Dactylosaurus (Reptilia, Sauropterygia) and ganoid fishes were discovered in the uppermost Rot (Lower Triassic, Olenekian), exposed in the vicinity of Gogolin (Opole Silesia, SPoland). The lower bonebed, which is up to 5 cm thick, is built of several laminae. On the top of the individual laminae, vertebrae, teeth, long and flat bones of reptiles, as well as fish scales, teeth and a skull fragment have been found. The upper bonebed, which is up to 2 cm thick, contains smaller bones of reptiles (mainly vertebrae and long bones), and also fish scales. The bonebeds are particularly abundant in vertebrate remains: 1 m2 usually contains several dozens of them. All remains are disarticulated. Gogolin is probably the third or second site with Rot deposits where remains ofDactylosaurus have been found, and the richest one.
    Źródło:
    Przegląd Geologiczny; 2012, 60, 12; 646--649
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Olenekian (Early Triassic) fossil assemblage from eastern Julian Alps (Slovenia)
    Autorzy:
    Kolar-Jurkovšek, T.
    Vuks, V. J.
    Aljinović, D.
    Hautmann, M.
    Kaim, A.
    Jurkovšek, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/191738.pdf
    Data publikacji:
    2013
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    Olenekian
    Early Triassic
    foraminifers
    bivaves
    gastropods
    conodonts
    sedimentology
    Julian Alps
    Slovenia
    Opis:
    New palaeontological and sedimentological data from the Lower Triassic strata of the eastern Julian Alps in Slovenia are presented., They are unusual for the Early Triassic of the Alps in representing a relatively deeper, unrestricted marine (mid-ramp) setting. There are two basic microfacies types in the section investigated (types A and B), which are organized as couplets with coarse-grained tempestitic deposits (microfacies A), overlain by laminated or bioturbated lime mudstones and/or marls (microfacies B), frequently containing ammonoids. This pattern is interpreted as storm deposition with occasional winnowing of bottom sediments and the formation of coarse-grained skeletal deposits (lags), followed by the slow settling of suspended particles, when the storm waned, in addition to background deposition. Dominantly lime mud deposition and the presence of ammonoids indicate deposition on a more distal, deeper ramp with an unrestricted connection to the open sea. Intense reworking of bottom skeletal-rich sediment and accumulation of storm lags suggest deposition above the storm wave base, possibly in a wide low-energy mid-ramp environment. Faunas from such settings have been reported relatively rarely from the Early Triassic of the Alps. The macrofauna contains ammonoids, bivalves and gastropods, whereas the microfauna is represented by foraminifer tests and conodont elements; rare fish remains also occur. In the foraminifer assemblages, species of Ammodiscus, Hoyenella, Glomospirella dominated, corresponding to the widespread “Glomospira-Glomospirella” foraminifer community, with some miliolids and nodosariids. The conodont fauna is characterized by Triassospathodus hungaricus (Kozur et Mostler), indicating an early Spathian (Olenekian) age. The fossil assemblage highlights the wide distribution of Early Triassic taxa in the Tethys and facilitates its worldwide correlation. Its relatively low diversity by comparison with shallow marine settings is interpreted as an evolutionary proximal-distal trend in the wake of the end-Permian mass extinction. Re-diversification first occurred in nearshore settings and expanded into deeper/distal marine environments through geological time.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2013, 83, 3; 213-227
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A basal archosauriform from the Early Triassic of Poland
    Autorzy:
    Borsuk-Bialynicka, M
    Evans, S.E.
    Powiązania:
    https://bibliotekanauki.pl/articles/22940.pdf
    Data publikacji:
    2003
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Osmolskina czatkowiensis
    Polska
    bone
    Middle Triassic
    Early Triassic
    Czatkowice
    basal archosauriform
    geographic distribution
    Early Olenekian
    Archosauriformes
    deposit
    distribution
    paleontology
    Opis:
    Basal Archosauriformes had a wide geographic distribution through the Lower to Middle Triassic. Osmolskina czatkowiensis gen. et sp. nov. from Early Olenekian karst deposits at Czatkowice, west of Cracow, provides the first record from Poland. The reconstructed skull and attributed postcranial elements show a morphology closely resembling that of the Early Anisian African genus Euparkeria Broom, 1913, while differing at generic level. Both genera display the same mosaic of plesiomorphic and apomorphic character states, but share no unique apomorphic character state. They might thus be combined in the family Euparkeriidae Huene, 1920, but could also constitute two plesions of the same grade lying just below the Archosauria + Proterochampsidae node. Currently, Euparkeriidae remains monotypic because no other genus can be assigned to it with confidence. Until this problem is resolved, the term “euparkeriid” essentially denotes a grade of Lower to Middle Triassic non−archosaurian archosauriforms that are more derived than proterosuchid grade taxa, but lack the specializations of either erythrosuchids or proterochampsids. They were probably Pangaean in their distribution.
    Źródło:
    Acta Palaeontologica Polonica; 2003, 48, 4
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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