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Wyszukujesz frazę "Upper Devonian" wg kryterium: Temat

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    Wyświetlanie 1-5 z 5
    Tytuł:
    The youngest Devonian record of "Housean pits" in ammonoids
    Autorzy:
    Rakociński, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059005.pdf
    Data publikacji:
    2012
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    ammonoids
    parasite
    pearl formation
    "Housean pits"
    Polska
    Upper Devonian
    Opis:
    An unusual occurrence of parasitic "Housean pits" in internal mould of ammonoid specimen referred to as Felisporadoceras cf. subvaricatum (Sobolew) from Middle Famennian of Poland are described. Hitherto the youngest representatives of goniatites showing a pitting on the internal moulds were known from the Middle Devonian (lower Givetian), thus, most probably the presented material constitutes the youngest world record of this phenomenon.
    Źródło:
    Geological Quarterly; 2012, 56, 2; 387-390
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Storm-dominated deposition on a Frasnian carbonate platform margin (Wietrznia, Holy Cross Mts., Poland)
    Autorzy:
    Vierek, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059533.pdf
    Data publikacji:
    2007
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Polska
    Holy Cross Mountains
    Upper Devonian
    carbonate platform
    tempestites
    Opis:
    The Wietrznia quarry in Kielce is situated between the shallow-water Devonian carbonate platform in the Kielce region and the deeper Łysogóry basin. This palaeogeographic setting affected carbonate sedimentation in Late Devonian times. The transitional facies of the Wietrznia Frasnian comprises two over lapping types of deposits: (1) micritic and marly limestone of shelf basin facies and (2) coarse-grained limestone of fore-reef facies. The first type includes laminated- and graded micritic limestone and modular limestone. The second includes intraformational conglomerates and breccias, and crinoidal limestone. The limestones in the middle Wietrznia Beds formed within storm wave basein a shal ow (possibly only a few tens of metres) sea that deepened eastwards. Storms are likely to have been the main cause of erosion and transport. In the western part of the quarry, proximal tempestites show evidence of amalgamation and cannibalism as do some high-energy flat-pebble conglomerates. With abating storm winds, finer-grained graded and laminated limestones accumulated. To ward the eastern part of the quarry, the high-energy effects of near-shore storm waves are less evident; the deposits there are transitional or more distal tempestites.
    Źródło:
    Geological Quarterly; 2007, 51, 3; 307-318
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Organic remains of tentaculitids: New evidence from Upper Devonian of Poland
    Autorzy:
    Filipiak, P
    Jarzynka, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/21723.pdf
    Data publikacji:
    2009
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Dacryoconarida
    Upper Devonian
    Polska
    paleontology
    remains
    Frasnian
    Tentaculita
    tentaculitid
    Devonian
    organic remains
    West Pomeranian region
    Opis:
    Organic remains of tentaculitids have been recovered during palynological research on archival samples from the Dobrzyca 2 borehole (Western Pomerania). Until now tentaculitids are widely known from their abundant mineralised shells. As organic remains, on the other hand, they have only been known since 2004. The present discovery is currently the second one of this kind found in Upper Devonian strata. The shape and morphology of some recognized tentaculitid organic remains are similar to embryonic and juvenile forms of dacryoconarids belonging to orders Nowakiida and Stylionida. Based on palynomorphs, the age of the two samples investigated has been established as Frasnian, RB and RD local miospore zones.
    Źródło:
    Acta Palaeontologica Polonica; 2009, 54, 1; 111-116
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Biernatella - a new Devonian double-spired brachiopod
    Biernatella - nowy dewoński ramienionóg z diplospiralium
    Biernatella – novyjj devonskijj brakhiopod s diplospiralium
    Autorzy:
    Balinski, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/22625.pdf
    Data publikacji:
    1977
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    paleontology
    Biernatella
    Biernatella polonica
    new species
    Devonian
    Upper Devonian
    Biernatellidae
    Dayioidea
    double-spired brachiopod
    brachiopod
    Polska
    Źródło:
    Acta Palaeontologica Polonica; 1977, 22, 2
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Late Devonian Upper Kellwasser Event and entomozoacean ostracods in the Holy Cross Mountains, Poland
    Autorzy:
    Olempska, E
    Powiązania:
    https://bibliotekanauki.pl/articles/20081.pdf
    Data publikacji:
    2002
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    ostracod
    Polska
    entomozoacean ostracod
    Ostracoda
    Upper Kellwasser Event
    paleoenvironment
    Famennian
    stratigraphy
    Frasnian
    Late Devonian
    Devonian
    Entomozoacea
    extinction
    Holy Cross Mountains
    paleontology
    Opis:
    Late Frasnian–Early Famennian entomozoacean ostracod assemblages from the Płucki section in the Holy Cross Mountains were studied to establish the effect of the “Kellwasser bio−event” on the planktonic biodiversity and faunal content. The composition of ostracod assemblages changes from a moderately diverse (10 species) Entomoprimitia–Richterina– Nehdentomis–Nandania dominated “background” assemblage characterising a pre−event interval, to an Entomoprimitia−assemblage during the event interval, and finally to a Franklinella−dominated post−event assemblage in the Middle Palmatolepis triangularis conodont Zone. The Frasnian–Famennian extinction caused substantial losses among entomozoacean lineages. In the Płucki section it occurred in two closely spaced steps within the Palmatolepis linguiformis conodont Zone. The first step, at the base of the dark cephalopod limestone (Upper Kellwasser Horizon), reduced the abundance and the species diversity of entomozoaceans to only two Entomoprimitia species. The vacant niche was then filled by the new, immigrant species Entomoprimitia (Entomoprimitia) kayseri which is dominant in the Upper Kellwasser interval. All these species were lost at the second step within the Upper Kellwasser Horizon. The entomozoaceans remained virtually absent during a long time interval between the end−Frasnian crisis and the Middle Pa. triangularis Zone. They reappear as new species from refugia lineages (Franklinella, Nehdentomis) and became widespread, indicating favourable ecological conditions. Some 13 species have been identified and assigned to seven genera. Rabienella? lagowiensis sp. nov. is proposed.
    Źródło:
    Acta Palaeontologica Polonica; 2002, 47, 2
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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