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    Wyświetlanie 1-11 z 11
    Tytuł:
    Silurian rugose coral Schlotheimophyllum Smith, 1945 from the Upper Visby Beds of Gotland, Sweden
    Autorzy:
    Wrzołek, Tomasz
    Zatoń, Michał
    Powiązania:
    https://bibliotekanauki.pl/articles/24264691.pdf
    Data publikacji:
    2023
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    Rugosa
    Corals
    coloniality
    variability
    Silurian
    Opis:
    A rich (about 60 specimens) collection of Schlotheimophyllum, large rugose corals from the Silurian of Gotland, Sweden, was studied. Although the material is mostly fragmentary (beach pebbles), the presence of growth lines, clearly seen in thin sections, provides reliable numerical data. Analyzed were corallum shape, septal numbers, and aspects of coloniality. Uniformity of variability spectra of these parameters indicates that all of the material studied belongs to a single, variable species, which is Schlotheimophyllum patellatum (Schlotheim, 1820).
    Źródło:
    Annales Societatis Geologorum Poloniae; 2023, 93, 3; 251--267
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    On three rugose coral genera from Serpukhovian strata in the Upper Silesian Coal Basin, Poland
    Autorzy:
    Fedorowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/138850.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Polska
    rewizja
    Serpuchow
    Polska
    revision
    Rugosa genera
    Serpukhovian
    Opis:
    The rugose coral specimens included by Schindewolf (1952) in the genera Claviphyllum Hudson, 1942, Fasciculophyllum Thomson, 1883 and Pentaphyllum (Tachylasma) Grabau, 1922 are revised on the basis of the original collection. The first two taxa are included in Antiphyllum Schindewolf, 1952, either in its original sense or in its newly introduced subgenus Antiphyllites. The new genus Effigies is introduced for Pentaphyllum (Tachylasma) silesiacumcussed. New, detailed descriptions of species are supplemented by text-figures in order to document their intraspecific variability and phylogenetic relationships.
    Źródło:
    Acta Geologica Polonica; 2012, 62, 1; 1-33
    0001-5709
    Pojawia się w:
    Acta Geologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Life strategies and function of dissepiments in rugose coral Catactotoechus instabilis from the Lower Devonian of Morocco
    Autorzy:
    Berkowski, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/20490.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    life strategy
    life function
    dissepiment
    rugose coral
    Catactotoechus instabilis
    paleontology
    Devonian
    Lower Devonian
    Morocco
    Rugosa
    coral
    Opis:
    This study focuses on the life strategies of small, dissepimented rugose coral Catactotoechus instabilis (representative of Cyathaxonia fauna) from the Emsian argillaceous deposits of mud mounds of Hamar Laghdad (Anti−Atlas, Morocco). Numerous constrictions and rejuvenescence phenomena as well as frequent deflections of growth directions among the studied specimens suggest unfavourable bottom conditions resulted from sliding down of the soft sediment on the mound slopes. Dissepimental structures observed on well−preserved calices and thin sections played an important role in the life of the coral, supporting their successful recovery after temporary burial within unstable soft sediment. The development of lonsdaleoid dissepiments, apart from being biologically controlled, was also strongly influenced by environmental factors. Such modifications in lonsdaleoid dissepiments growth were observed in phases of constrictions, rejuvenescence and deflections of growth, when their development was significantly increased in comparison to phases of their stable growth. Dissepiment morphology suggests that the process of formation of lonsdaleoid dissepiments in Catactotoechus instabilis is consistent with the hydraulic model.
    Źródło:
    Acta Palaeontologica Polonica; 2012, 57, 2
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The rugose coral faunas of the Carboniferous/Permian boundary interval
    Fauny koralowców Rugosa z pogranicza Karbonu i Permu
    Autorzy:
    Fedorowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/21931.pdf
    Data publikacji:
    1986
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Opis:
    Analysis of the rugose coral fauna of the Carboniferous/Permian transition strata is discussed, with special emphasis on corals from the Pseudoschwagerina Zone. Two distinct realms: the Tethys Realm and the Cordillera-Arctic-Uralian Realm were developed in the Carboniferous-Permian time. Recently introduced taxonomic, biostratigraphic and paleogeographic data and interpretations are evaluated in terms of their global and regional value. It is postulated that corals have some importance as a supplementary group for establishing the lower limit of the Permian System.
    Dokonano krytycznego przeglądu najnowszej i starszej literatury dotyczącej zagadnienia stratygrafii i faun koralowych warstw przejściowych od karbonu do permu, ze szczególnym uwzględnieniem poziomu Pseudoschwagerina. Wyróżniono dwa królestwa: królestwo Kordylierów, Arktyki i Uralu oraz królestwo Tetydy. Omówiono fauny koralowe poziomu Pseudoschwagerina najważniejszych regionów wchodzących w skład obydwu królestw. Stwierdzono pewne znaczenie koralowców Rugosa dla określenia dolnej granicy permu, a także stratygraficznych korelacji w obrębie królestw. Korelacja pomiędzy królestwami jest praktycznie niemożliwa. Wysunięto tezę, że przynajmniej niektóre rodziny Rugosa, pochodzące od wspólnych przodków z początków górnego karbonu (w podziale dwudzielnym), rozwijały się równolegle do siebie w obydwu królestwach.
    Źródło:
    Acta Palaeontologica Polonica; 1986, 31, 3-4
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A revision of the Devonian rugosan phillipsastreid genus Smithicyathus
    Autorzy:
    Wrzolek, T
    Powiązania:
    https://bibliotekanauki.pl/articles/20175.pdf
    Data publikacji:
    2007
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    variability
    Smithicyathus
    Frasnian
    Rugosa
    fossil coral
    Devonian
    rugose coral
    Phillipsastreidae
    paleontology
    Opis:
    The rugose coral genus Smithicyathus is diagnosed in this paper as massive to phaceloid phillipsastreid, with common horseshoe dissepiments and major septa that are very short in the tabularium. Revised taxonomy of this genus is based on analysis of over 20 numerical characters measured in sections and/or extracted from the literature data. Species are distinguished either by morphometric non−overlap in at least one, key feature or by geographic–stratigraphic isolation. The earliest possible representatives of the genus are known from the Eifelian of Angara (S.? emendatus and S.? russakovi). In the Upper Frasnian Smithicyathus is represented by seven species; in western Euramerica occur S. cinctus and S. mcleani sp. nov.; south−eastern Euramerican shelf area is with S. lacunosus, S. cf. lacunosus, S. smithi, S. cf. smithi, and S. lubliniensis; one probable species is recorded in Angara: S.? belkovskiense. The genus did not survive the Frasnian– Famennian crisis. Smithicyathus lived in tropical and sub−tropical shallow−marine carbonate environments, with the possible exception of the northern mid−latitudes species from Siberia. In the Holy Cross Mountains, S. lacunosus and S. smithi show a preference for restricted−marine facies. They may make up over 90% of all rugosan colonies collected in such locations, whereas in the more open−marine settings they are rare both in numbers and in proportion to other rugosan species.
    Źródło:
    Acta Palaeontologica Polonica; 2007, 52, 3
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rugose corals across the Devonian-Carboniferous boundary in NW Turkey
    Autorzy:
    Denayer, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/21115.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    rugose coral
    coral
    Rugosa
    Devonian
    Carboniferous
    paleobiogeography
    Strunian
    Hastarian
    Famennian
    Tournaisian
    Turkey [geogr.]
    Opis:
    An uppermost Famennian (Strunian) coral assemblage has been recovered in the middle part of the Yılanlı Formation of the Istanbul Zone (Zonguldak and Bartın areas, NW Turkey). In the Bartın area, the studied fossiliferous interval corresponds to a c. 30 m-thick unit of bioclastic to peloidal wackestone to packstone grading to grainstone and including two stromatoporoid biostromes. In the Zonguldak area, 60 km westward, the bioclastic facies is dominant. The rugose corals are mainly solitary taxa belonging to the genera Campophyllum, Bounophyllum, Amplexocarinia, and ?Metriophyllum, and only one colonial genus occurs: Pseudoendophyllum. This fauna is similar to that documented in Europe. The campophyllids and dibunophyllids are the main component of the uppermost Famennian assemblages in S Belgium, N France, W Germany, NW and S Poland. The endophyllids occur in S Poland, Novaya Zemlya, and in the Ural Mountains. The Istanbul Zone is supposed to be situated in the central part of the Palaeotethys Ocean, along the southern margin of Laurussia during the uppermost Devonian and Carboniferous. The rugose corals indicate some relationship with the eastern part of Laurussia, or that both areas were under a common marine influence at this time. The global Hangenberg event was not recognized in the Turkish localities, except for the disappearance of the corals, occurring less than 19 m below the Devonian–Carboniferous boundary based on the foraminifers. There is no major facies change through the boundary and the first Carboniferous corals (small Uralinia and Caninophyllum) appear 6 m above the D–C boundary. The new species Caninophyllum charli sp. nov. is described from the upper part of the lower Tournaisian.
    Źródło:
    Acta Palaeontologica Polonica; 2016, 61, 1
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Astrorhizae-like structures on epitheca of rugose corals from the Carboniferous of Laos
    Autorzy:
    Hung, N H
    Powiązania:
    https://bibliotekanauki.pl/articles/23243.pdf
    Data publikacji:
    2001
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Carboniferous
    astrorhizae-like structure
    Laos
    stromatoporoid
    Hydractinia echinata
    rugose coral
    Calceola sandalina
    coral
    Clionolithes reptans
    paleontology
    Opis:
    Stellate patterns, called astrorhizae, occurring in some Paleozoic stromatoporoids are by most authors regarded as integral elements of these enigmatic fossils. The finding of stellate structures on epithecae of rugose corals from the Lower Carboniferous of Central Laos seems to support, however, the idea that astrorhizae in Paleozoic stromatoporoids may represent traces of foreign organisms.
    Źródło:
    Acta Palaeontologica Polonica; 2001, 46, 4
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Lower Devonian [Emisian] rugose corals from the Cantabrian Mountains, Northern Spain
    Autorzy:
    Schroder, S
    Soto, F.
    Powiązania:
    https://bibliotekanauki.pl/articles/21027.pdf
    Data publikacji:
    2003
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    ecology
    Cantabriastraea cantabrica
    Rugosa
    Devonian
    Lower Devonian
    Tabulophyllum bonarense
    rugose coral
    Emsian
    coral
    paleontology
    Spain
    Cantabrian Mountains
    Opis:
    Two species of Lower Devonian rugose corals are described from the Cantabrian Mountains of Spain: Cantabriastraea cantabrica gen. et sp. nov. and Tabulophyllum bonarense sp. nov. The development of rootor buffer−like attachment structures (“rhizoid processes”) in T. bonarense indicates adaption to the soft substrate and supports corallite stabilisation. Because of their strongly everted calices and a corresponding arrangement of trabeculae, the colonies of the genus Cantabriastraea are assigned tentatively to the Paradisphyllinae, constituting the first record of the subfamily in Western Europe. Some specimens give information on colony−formation of this taxon, which is induced by strong lateral budding (nonparricidal increase) of a remarkable large and long−lasting protocorallite.
    Źródło:
    Acta Palaeontologica Polonica; 2003, 48, 4
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Tournaisian and Viséan Lophophyllum of Gorskiy (1932) from the Kirghiz Steppe and a possible ancestor of a new Bashkirian rugose coral genus from the Donets Basin (Ukraine)
    Autorzy:
    Fedorowski, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/94395.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    Kyrgyzstan
    "Lophophyllum"
    Rugosa
    Lower Carboniferous
    revision
    Kirgistan
    dolny karbon
    rewizja
    Opis:
    All specimens assigned by Gorskiy (1932) to the genus Lophophyllum Milne Edwards and Haime, 1850 are revised, redescribed and reillustrated. The corallite identified by him as a second, specifically indeterminate species of Lophophyllum is here questionably included in Amygdalophyllum Dun and Benson, 1920. For the reminding specimens two new, unnamed genera are suggested. ”Lophophyllum” subtortuosum Gorskiy, 1932 belongs to a new, non-dissepimented genus of an unknown family. A possible relationship between gen. nov. 1, sp. nov. 1 and the new Bashkirian genus from the Donets Basin (Ukraine) is proposed.
    Źródło:
    Geologos; 2017, 23, 3; 215-221
    1426-8981
    2080-6574
    Pojawia się w:
    Geologos
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Rugose corals and brachiopods across the Frasnian-Famennian boundary in Central Hunan, South China
    Autorzy:
    Ma, X
    Sun, Y.
    Hao, W.
    Liao, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/21047.pdf
    Data publikacji:
    2002
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    fossil distribution
    brachiopod fauna
    brahiopod
    Rugosa
    China
    rugose coral
    Ostracoda
    Brachiopoda
    Famennian
    Frasnian
    Devonian
    extinction
    coral
    paleontology
    Hunan
    Opis:
    We present taxonomic revision of rugose corals and brachiopods from several Frasnian–Fammenian (F–F) boundary sections in central Hunan Province, China. Diversity of shallow−water rugose corals gradually increased during the Frasnian, but ended with sudden extinction near the end of Frasnian. Ostracods were abundant during the Frasnian; their extinction coincided with anoxic deposition of the end−Frasnian black shale deposits. The early Famennian ostracod fauna is of low diversity. The brachiopod fauna of the late Frasnian (Palmatolepis rhenana and Pa. linguiformis zones) is dominated by atrypids, small−sized cyrtospiriferids, and the rhynchonellid Hunanotoechia. All atrypids disappeared before the F–F boundary with highest rates of extinction below the boundary (probably low in the Pa. linguiformis Zone). The Frasnian cyrtospiriferid fauna is also of low diversity and dominated by small taxa. All but one of the cyrtospiriferid taxa crossed the F–F boundary. The early Famennian post−extinction recovery brachiopod fauna was the result of rapid radiation of new forms shortly after the terminal Frasnian event. The early Famennian fauna is characterized by diverse cyrtospiriferids, abundant Yunnanellina and productoids. Above the early recovery fauna another fauna was recovered, with brachiopods Hunanospirifer and Yunnanella and is correlated with the late or latest Pa. crepida Zone. Sinalosia rugosa gen. et sp. nov. (Productida) is erected.
    Źródło:
    Acta Palaeontologica Polonica; 2002, 47, 2
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Monospecific rugosan assemblage from the Emsian hydrothermal vents of Morocco
    Autorzy:
    Berkowski, B
    Powiązania:
    https://bibliotekanauki.pl/articles/20879.pdf
    Data publikacji:
    2004
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    hydrothermal venting system
    sediment
    Emsian
    Morocco
    venting channel
    Rugose coral
    rugosa
    Hamarophyllum belkai
    mud mound
    hydrothermal vent
    coral
    paleontology
    coral meadow
    Opis:
    Unique monospecific assemblages of small, solitary, nondissepimented rugose corals from the Devonian deep−sea hydrothermal venting systems of the Hamar Laghdad (Anti−Atlas, Morocco) are described. Assemblages of numerous rugosans (coral meadows) have been found around the outlets of venting channels irregularly forked within the Emsian mud mound sediments. The majority of rugose corals, which settled around vents, reveal a bizarre pattern of growth called here “calice−in calice”. The phenomenon of “calice−in−calice” growth is related to selective survival of coral larvae i.e. it is postulated that the larvae, which settled within the calices of dead individuals were more successful in their development than those that settled elsewhere. They probably use empty calices as shelters against the physical (hot or poisoning fluids) or biological (predators) factors. The empty calices also provided a hard surface for attachment. The presence of numerous carapaces of ostracods within the calices of dead rugosans suggests a strong trophic relation between corals and ostracods, which lived around hydrothermal vents. The new genus and species Hamarophyllum belkai is proposed.
    Źródło:
    Acta Palaeontologica Polonica; 2004, 49, 1
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-11 z 11

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