Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "Atrypida" wg kryterium: Temat

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-10 z 10
    Tytuł:
    The last Frasnian Atrypida [Brachiopoda] in southern Belgium
    Autorzy:
    Godefroid, J
    Helsen, S
    Powiązania:
    https://bibliotekanauki.pl/articles/21597.pdf
    Data publikacji:
    1998
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    brachiopod fauna
    fauna
    Frasnian
    Devonian
    Belgium
    Atrypida
    mass extinction
    biostratigraphy
    taxonomy
    paleontology
    Brachiopoda
    Opis:
    The last representatives of the order Atrypida on the southern flank of the Dinant Synclinorium (Vaulx-Nismes area) in Belgium belong to Costatrypa, Spinatrypa, Spinatrypina (?Spinatrypina), Spinatrypina (Exatrypa), Iowatrypa, ?Waiotrypa, Desquamatia (Desquamatia) and Desquamatia (?Seratrypa). Among the thirteen described taxa, five are new: Spinatrypa tumuli sp. n., Iowatrypa circuitionis sp. n., ?Waiotrypa pluvia sp. n., Desquamatia (Desquamatia) quieta sp. n. and Desquamatia (?Seratrypa) derelicta sp. n. Supposed lissatrypid 'Glassia drevermanni' Maillieux, 1936 from the late Frasnian Matagne shales is assigned to the Rhynchonellida. On the southern flank of the Dinant Synclinorium and in the Philippeville Massif, the Atrypida become extinct in the Palmatolepis rhenana Zone, significantly below the Frasnian-Famennian (F-F) boundary. Their extinction coincides with the first appearance of the green and black shales of the late Frasnian Matagne Formation, recording a transgressive-hypoxic event. Based on conodont data, this event takes place earlier on the southern flank of the Dinant Synclinorium than in the Philippeville Massif.
    Źródło:
    Acta Palaeontologica Polonica; 1998, 43, 2
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Heckerella, a new genus of the Early Frasnian [Late Devonian] atrypid brachiopod
    Autorzy:
    Rzonsnitskaya, M A
    Sokiran, E V
    Powiązania:
    https://bibliotekanauki.pl/articles/22743.pdf
    Data publikacji:
    2000
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Frasnian
    Late Devonian
    brachiopod
    East European Platform
    Atrypida
    Heckerella
    new genus
    Brachiopoda
    paleontology
    Heckerella heckeri
    Opis:
    A new atrypid genus Heckerella from early Frasnian (Palmatolepis transitans Zone) of northwestern East European Platform is proposed. It includes only Heckerella heckeri, originally referred to Anatrypa. The new genus is characterised by weakly paraplicate anterior commissure, well-developed carina on the ventral valve, sulcus on the dorsal valve and coarser radial ornament. Heckerella has restricted geographic distribution in northwestern Russia, Latvia, northeastern Lithuania where it forms high-density associations with Pseudoatrypa velikaya.
    Poważne zmiany ekosystemowe we wczesnym franie spowodowały spadek zróżnicowania taksonomicznego wśród atrypidów, ale przedstawiciele tej grupy pozostali do końca franu ważnym składnikem niektórych zespołów płytkowodnych ramienionogów. Opisany w niniejszej pracy nowy rodzaj Heckerella należy do ostatnich przedstawicieli rządu Atrypida. Jedyny znany gatunek tego rodzaju, H. heckeri (Nalivkin, 1941) pochodzi z wczesnego franu (poziom Palmatolepis transitans) późnocno-zachodnich rejonów Platformy Wschodnioeuropejskiej i pierwotnie został zaliczony do rodzaju Anatrypa Nalivkin, 1939. Od tego ostatniego rodzaju Heckerella gen. n. różni się słabo wyrażoną komisurą typu "paraplicate", dobrze rozwiniętą kariną na skorupce nóżkowej i grubymi żebrami. Nowy rodzaj, chociaż podobny do późnofrańskiej Gibberosatrypa Markovskii & Rzonsnitskaya, 1998, różni się od niej bardziej wyciągniętym (wydłużonym) brzegiem zawiasowym, obecnośocią wyraźniejszej ośrodkowej zatoki na skorupce grzbietowej i wąskimi, wysokimi żebrami.
    Źródło:
    Acta Palaeontologica Polonica; 2000, 45, 4
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Latest Frasnian Atrypida [Brachiopoda] from South China
    Autorzy:
    Ma, X P
    Powiązania:
    https://bibliotekanauki.pl/articles/23492.pdf
    Data publikacji:
    1998
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Hunan Province
    ecological condition
    Frasnian
    Devonian
    China
    biogeography
    Atrypida
    mass extinction
    biostratigraphy
    taxonomy
    Brachiopoda
    paleontology
    Opis:
    In South China latest Frasnian (Palmatolepis linguiformis Zone) the representatives of the order Atrypida (Brachiopoda) are most common in central Hunan Province. They are relatively rare in other parts of South China due to unfavourable ecologic conditions. Unlike most previously reported sections, including some sections in South China, the four Frasnian-Famennian (F-F) boundary sections examined here do not show any evidence for black shale. Atrypids are abundant and relatively diverse about 15 to 20 m below the F-F boundary (six species), and very rare about 1-2 m below the boundary (with only two species). It seems that the disappearance of most atrypids occurred well before the F-F boundary. Nine species (including Iowatrypa? qidongensis sp. n.), assigned to six genera, are discussed and described.
    Źródło:
    Acta Palaeontologica Polonica; 1998, 43, 2
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Revision of latest Givetian-Frasnian Atrypida [Brachiopoda] from central North America
    Autorzy:
    Day, J
    Copper, P
    Powiązania:
    https://bibliotekanauki.pl/articles/20627.pdf
    Data publikacji:
    1998
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Late Frasnian
    fauna
    brachiopod fauna
    Frasnian
    Late Devonian
    Devonian
    Atrypida
    taxonomy
    North America
    Givetian
    Brachiopoda
    paleontology
    Opis:
    The brachiopod fauna of the Middle-Late Devonian cratonic carbonate platform deposits of the Iowa Basin, central North America, contains twenty species of the order Atrypida, some of which are types for widespread genera common in Middle and Late Devonian faunas. The latest Givetian-early Frasnian deposits yield a diverse fauna consisting of ten species (two new) included in Desquamatia (Independatrypa), D. (Seratrypa), Pseudoatrypa, Radiatrypa, Spinatrypa (Spinatrypa) and Spinatrypina (Exatrypa). Many of these forms occur in, or are closely similar to species known from, coeval faunas of central and western Canada. Middle Frasnian deposits of northern Iowa contain two species included in Spinatrypa (S.) and Pseudoatrypa, both of which are new. Late Frasnian strata of the Iowa Basin yield eight species included in Costatrypa, Iowatrypa, Pseudoatrypa, and Spinatrypa (Spinatrypa), some of which are widespread in other subtropical and tropical faunas of the western US and western Canada. The taxa Pseudoatrypa witzkei sp. n., Spinatrypa (S.) bunkeri sp. n., Spinatrypa (S.) thompsoni sp. n., and Spinatrypina (Exatrypa) johnsoni sp. n. are proposed. Pseudoatrypa? sp. from the very late Frasnian of southern New Mexico is also illustrated.
    Źródło:
    Acta Palaeontologica Polonica; 1998, 43, 2
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Distribution of latest Givetian-Frasnian Atrypida [Brachiopoda] in central and western North America
    Autorzy:
    Day, J
    Powiązania:
    https://bibliotekanauki.pl/articles/22776.pdf
    Data publikacji:
    1998
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    brachiopod fauna
    fauna
    Atrypida
    mass extinction
    Brachiopoda
    Givetian
    Frasnian
    Devonian
    biogeography
    biostratigraphy
    distribution
    North America
    paleontology
    Opis:
    Diverse atrypid brachiopod faunas characterize very late Givetian-early Frasnian deposits of Devonian Transgressive-Regressive (T-R) cycle IIb in North America which feature species of Desquamatia (Seratrypa), Desquamatia (Independatrypa), Pseudoatrypa, Radiatrypa, Spinatrypina (S.), S. (Exatrypa), Spinatrypa (S.), Davidsonia, and possibly Iowatrypa Middle Frasnian faunas are not well documented in much of North America. Middle Frasnian deposits of T-R cycle IIc in the Great Basin, Iowa, and the southern Northwest Territories and Mackenzie shelf feature species of Neatrypa, Pseudoatrypa, Radiatrypa, D. (Seratrypa), Spinatrypa, and possibly Costatrypa. Radiatrypa does not carry over into late Frasnian rocks of T-R cycle IId in North America. Genera common to late Frasnian deposits of T-R cycle IId-1 in central and western North America include widespread species of Pseudoatrypa, Spinatrypa, Costatrypa, Iowatrypa. D. (Seratrypa) and Neatrypa were restricted to the tropical platforms of western Canada at that time. Very late Frasnian brachiopod faunas of T-R cycle IId-2 yield species of Pseudoatrypa, Spinatrypa, Iowatrypa, and Pseudoatrypa? (southwest US only). Available data on Late Frasnian brachiopod records in North American subtropical platforms (New Mexico and Iowa) indicate that two successive stepped late Frasnian extinction events affected those faunas, coinciding with the Lower Kellwasser Event and the Frasnian-Famennian (F-F) Event. Over half of the atrypid genera represented in late Frasnian North American faunas survived the first wave of extinctions (Lower Kellwasser Event). The surviving species, recorded in very late Frasnian deposits of Devonian T-R cycle IId-2, became extinct during the final crisis associated with the F-F Event.
    Źródło:
    Acta Palaeontologica Polonica; 1998, 43, 2
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A new atrypid genus [ Brachiopoda ] from the Frasnian of Poland
    Nowy rodzaj atrypy [ Brachiopoda ] z franu Polski
    Autorzy:
    Balinski, A
    Powiązania:
    https://bibliotekanauki.pl/articles/20299.pdf
    Data publikacji:
    1997
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    fauna kopalna
    Waiotrypa sulcicarina
    atrypidy
    wymieranie gatunkow
    Polska
    famen
    Brachiopoda
    ramienionogi
    Anatrypa kadzielniae
    Atrypida
    paleontologia
    fran
    dewon
    Opis:
    A new atrypid Waiotrypa sulcicarina gen. et sp. n. from the late Frasnian of the Holy Cross Mountains is proposed. The new genus is close to Iowatrypa Copper, 1973 from which it differs mainly in having a keeled pedicle valve and sulcate brachial valve. Waiotrypa is one of the latest atrypids prior to extinction of the order at the end of the Frasnian.
    Jedną z grup nabardziej dotkniętych wielkim wymieraniem na granicy fran-famen były ramienionogi z rzędu Atrypida. W późnym franie wykazują one wyraźne ubozenie zróżnicowania taksonomicznego by wymrzeć całkowicie z końcem franu. Badania szczegółowej dynamiki zmian zróżnicowania taksonomicznego atrypidów mają zatem kluczowe znaczenie dla zrozumienia procesów wymierania. Niniejsza praca jest wstępnym opracowaniem - bardziej kompleksowe zespołowe opracowanie zróżnicowania faun ramienionogów w obliczu wielkiego wymierania na granicy fran-famen znajduje się w przygotowaniu. Opisany tu nowy rodzaj i gatunek atrypida Waiotrypa sulcicarina należy do ostatnich przedstawicieli tej grupy. Gatunek ten występuje w górnofrańskich wapieniach odsłoniętych w kamieniołomie na Górze Łgawej i w przekopie drogi koło Kowali (Góry Świętokrzyskie) reprezentujących poziom Palmatolepis rhenana. Nowy atrypid wykazuje duże podobieństwo do frańskiej Iowatrypa Copper, od której jednak różni się przede wszystkim występowaniem środkowej zatoki na skorupce grzbietowej i kilowatego siodła na nóżkowej. Do Waiotrypa należy zapewne zaliczyć niektóre atrypidy opisane jako Anatrypa kandzielniae (Gürich) z franu Rosji (Nalivkin 1930, 1947, 1951) i Kazachstanu (Alekseeva 1962).
    Źródło:
    Acta Palaeontologica Polonica; 1997, 42, 3; 427-435
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Late Frasnian Atrypida [Brachiopoda] from Poland and the Frasnian-Famennian biotic crisis
    Autorzy:
    Racki, G
    Balinski, A
    Powiązania:
    https://bibliotekanauki.pl/articles/20394.pdf
    Data publikacji:
    1998
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    brachiopod fauna
    fauna
    Polska
    biotic crisis
    Atrypida
    mass extinction
    taxonomy
    Brachiopoda
    Famennian
    Frasnian
    Devonian
    Holy Cross Mountains
    biostratigraphy
    paleontology
    Opis:
    Late Frasnian Atrypida (Brachiopoda) from the Holy Cross Mountains, Poland, include 15 taxa and were widely distributed in foreslope habitats of the declining Dyminy Reef complex. The Palmatolepis semichatovae transgression, followed by the transgressive/hypoxic Lower Kellwasser (KW) Event during the Palmatolepis rhenana Zone did not have catastrophic effects for atrypid faunas, but were rather associated with the appearance of a new species group comprising Iowatrypa, Waiotrypa, Costatrypa, Spinatrypina, Desquamatia and Radiatrypa. Stepdown demise of the biota started during the inter-KW regression, and culminated as a result of increasing stress during the Upper Kellwasser Event in the late Palmatolepis linguiformis Zone, mainly due to catastrophic sea level changes and anoxia, possibly linked to oceanic thermal changes (cooling) and nutrification pulses. The extinction pattern was diachronous and facies-controlled in this area, and the last atrypid survivors reached the Frasnian-Famennian (F-F) boundary. Increasing expansion from the adjacent deeper-water environment of the more resistant assemblages, with productids, cyrtospiriferids, athyridids and schizophoriids, occurred in the final crisis interval. This brachiopod fauna profusion characterized the earliest Famennian survival and early recovery phases of the mass extinction in this part of the Laurussian shelf, as well as the continuity of the deeper-water rhynchonellid-inarticulate biofacies across the F-F boundary. Spinatrypina (Exatrypa) relicta sp. n. is proposed as new.
    Źródło:
    Acta Palaeontologica Polonica; 1998, 43, 2
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Late Frasnian Atrypida [Brachiopoda] from the South Urals, South Timan and Kuznetsk Basin [Russia]
    Autorzy:
    Rzhonsnitskaya, M A
    Markovskii, B P
    Yudina, Y A
    Sokiran, E V
    Powiązania:
    https://bibliotekanauki.pl/articles/23453.pdf
    Data publikacji:
    1998
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Kuznetsk Basin
    Atrypida
    mass extinction
    Ural Mountains
    taxonomy
    Brachiopoda
    Late Frasnian
    Famennian
    Frasnian
    Devonian
    Kellwasser Crisis
    Russia
    biostratigraphy
    paleontology
    Opis:
    Late Frasnian Atrypida (Brachiopoda) from the South Urals, South Timan and Kuznetsk Basin in Russia (east Laurussian and south Siberian shelf domains in Devonian time) reveal significant generic and specific diversity in the broadly defined Frasnian-Famennian (F-F) bio-crisis time. Eighteen species of atrypid brachiopods have been recorded, representing 4 subfamilies and 10 genera. The new genus Gibberosatrypa Markovskii & Rzhonsnitskaya, and the new subgenus Spinatrypa (Plicspinatrypa) Rzhonsnitskaya are proposed. Four new species Spinatrypina (Spinatrypina) sosnovkiensis Yudina, Spinatrypa (Plicspinatrypa) rossica Rzhonsnitskaya, Iowatrypa nalivkini Rzhonsnitskaya & Sokiran, and Cartnatina(?) biohermica Yudina are described. The representatives of the Variatrypinae (including especially common Desquamatia (Desquamatia) alticoliformis), Spinatrypinae (Spinatrypina) and Atypinae (Pseudoatrypa, ?Costatrypa) are widely distributed in the studied regions. The Pseudogruenewaldtiinae are represented by Iowatrypa and Pseudogruenewaldtia, of which the first is distributed worldwide, whereas the only undoubted species of the second is restricted to South Timan, and probably represents a localized latest Frasnian descendant of Iowatrypa. The decline phase of atrypid development was controlled by a variety of environmental factors tied to the global Kellwasser events, although it was not directly triggered by anoxic conditions. The investigated atrypid brachiopods, which were all confined to lower latitudes, disappeared during the F-F mass extinction, independently of their environmental and biogeographic settings.
    Źródło:
    Acta Palaeontologica Polonica; 1998, 43, 2
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Frasnian-Famennian brachiopod extinction events: A preliminary review
    Autorzy:
    Racki, G
    Powiązania:
    https://bibliotekanauki.pl/articles/20065.pdf
    Data publikacji:
    1998
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Pentamerida
    fauna
    China
    America
    Palmatolepis rhenana
    Atrypida
    morphology
    mass extinction
    Ural Mountains
    taxonomy
    Brachiopoda
    Famennian
    Frasnian
    brachiopod
    Devonian
    Kellwasser Crisis
    biogeography
    biostratigraphy
    distribution
    paleontology
    Opis:
    Preliminary review of taxonomy of the brachiopod order Atrypida and its stratigraphic distribution in the late Frasnian Kellwasser Crisis of several regions of Laurussia, western Siberia and South China point to their moderate diversity and stepdown but irregular extinction pattern. The distinctive character of the late Frasnian atrypid fauna is emphasised by several relict genera, marked by recurrent and possibly aberrant characters (mainly in ornamentation types), tendency to size reduction and homeomorphy in some taxa. The transgressive/hypoxic Lower Kellwasser Event and preceding eustatic changes during the Palmatolepis rhenana Zone had only a regional destructive effect, and were linked rather to an enhanced dispersal of the last generic set of atrypids. The Variatrypinae, Spinatrypinae and Iowatrypa-group seem to belong to the latest surviving atrypids. The final demise of the remaining atrypids (and some other articulate brachiopods, e.g., gypidulids) coincided with the transgressive/hypoxic Upper Kellwasser Event, followed by catastrophic eustatic fall during the late Palmatolepis linguiformis Zone (F-F Event). This was probably exacerbated by accelerated submarine volcano-hydrothermal activity, and consequent progressive regional eutrophication, and climatic destabilization. The level-bottom rhynchonellid-inarticulate biofacies crosses the fatal F-F boundary horizon without major changes. No reliable data exist for the presence of atrypids in the Famennian survival and recovery biota, even for the smooth lissatrypid Peratos. Sustained competition from radiating and diversifying productid-cyrtospirifrid-athyrid faunas may have provide an additional biotic factor in the collapse of the Frasnian shelly benthos at the time of sfress, as well as in a post-extinction offshore repopulation from inner shelf habitats.
    Źródło:
    Acta Palaeontologica Polonica; 1998, 43, 2
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evaluating the Frasnian-Famennian mass extinction: Comparing brachiopod faunas
    Autorzy:
    Copper, P
    Powiązania:
    https://bibliotekanauki.pl/articles/22494.pdf
    Data publikacji:
    1998
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    brachiopod fauna
    global loss
    Palmatolepis linguiformis
    climate cycle
    Palmatolepis rhenana
    Atrypida
    water setting
    mass extinction
    Brachiopoda
    South America
    Famennian
    shelf area
    Frasnian
    atrypid extinction
    Late Devonian
    Devonian
    reef habitat
    paleontology
    Opis:
    The Frasnian-Famennian (F-F) mass extinctions saw the global loss of all genera belonging to the tropically confined order Atrypida (and Pentamerida): though Famennian forms have been reported in the literafure, none can be confirmed. Losses were more severe during the Givetian (including the extinction of the suborder Davidsoniidina, and the reduction of the suborder Lissatrypidina to a single genus), but origination rates in the remaining suborder surviving into the Frasnian kept the group alive, though much reduced in biodiversity from the late Early and Middle Devonian. In the terminal phases of the late Palmatolepis rhenana and P. linguiformis zones at the end of the Frasnian, during which the last few Atrypidae dechned, no new genera originated, and thus the Atrypida were extirpated. There is no evidence for an abrupt termination of all lineages at the F-F boundary, nor that the Atrypida were abundant at this time, since all groups were in decline and impoverished. Atypida were well established in dysaerobic, muddy substrate, reef lagoonal and off-reef deeper water settings in the late Givetian and Frasnian, alongside a range of brachiopod orders which sailed through the F-F boundary: tropical shelf anoxia or hypoxia seems implausible as a cause for atrypid extinction. Glacial-interglacial climate cycles recorded in South America for the Late Devonian, and their synchronous global cooling effect in low latitudes, as well as loss of the reef habitat and shelf area reduction, remain as the most likely combined scenarios for the mass extinction events.
    Źródło:
    Acta Palaeontologica Polonica; 1998, 43, 2
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-10 z 10

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies