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Tytuł:
Refleksje krytyczne nad austro-węgierskimi reliktami w stratygrafii dolnego triasu w Tatrach
Critical comments on the Austro-Hungarian relics in the Lower Triassic stratigraphy in the Tatra Mountains
Autorzy:
Szulczewski, M.
Powiązania:
https://bibliotekanauki.pl/articles/2074726.pdf
Data publikacji:
2010
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
dolny trias
werfen
klasyfikacja stratygraficzna
Costatoria
Tatry
Lower Triassic
Werfenian
stratigraphic classification
Tatra Mts.
Opis:
The stratigraphic subdivision of the Lower Triassic in the Polish Tatra Mountains is composed solely of units of Alpine origin set in variable configurations. Unification of the stratigraphic classification over a vast area situated between the Dolomites and the Tatra Mountains is partly an effect of its long lasting integration in one state and within the domain of German-speaking geologists. This subdivision has never been soundly applied to the Lower Triassic of the Tatra Mts. on either palaeontological or any other satisfying basis. It has also lost its ground in its type areas, where other stages of extra-European origin has since long been adopted. Hence, the Werfenian, Seisian, Campilian, as well as the Scythian and the Myophoria Beds need to be definitely removed from the stratigraphic nomenclature and replaced with lithostratigraphic subdivision. The lithostratigraphic units should be implemented within their natural limits, therefore the units that have so far been created in the Slovakian part of the Carpathians should be adopted as it is possible.
Źródło:
Przegląd Geologiczny; 2010, 58, 11; 1070-1078
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characterization of petrophysical parameters of the Lower Triassic deposits in prospective location for Enhanced Geothermal System (central Poland)
Autorzy:
Sowiżdżał, A.
Papiernik, B.
Machowski, G.
Hajto, M.
Powiązania:
https://bibliotekanauki.pl/articles/2060322.pdf
Data publikacji:
2013
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Enhanced Geothermal System (EGS)
EGS
Polish Lowlands
Lower Triassic
petrophysical parameters
Opis:
In the years 2010-2013, analysis of rocks that build the sedimentary covers in Poland was carried out from the point of view of energy utilization accumulated in hot dry rocks – used in Enhanced Geothermal Systems (EGS). As a result of a number of analytical studies, the area situated in the central part of Poland was selected as one of prospective areas for location of EGS in sedimentary rocks. This area encompasses a major part of the Mogilno-Łódź Trough, a part of the Kujawy Swell and a small fragment of the Fore-Sudetic Monocline. The most favourable conditions for development of EGS occur in deposits of the Lower Triassic in the Krośniewice-Kutno vicinity where they are buried to depths greater than 5000 m b.s.l., have thicknesses exceeding 1500 m and are characterized by porosity about 2.5% and permeability about 0.1 mD. In the selected area, thermal characterization of the formation was carried out for location of the EGS in sedimentary rocks. The temperature at the top of Lower Triassic reservoir is in the range 165-175°C. Characterization of petrophysical parameters constituted the basis for further modelling of EGS utilization in selected area.
Źródło:
Geological Quarterly; 2013, 57, 4; 729--744
1641-7291
Pojawia się w:
Geological Quarterly
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Potencjał geotermalny zbiorników mezozoicznych Niżu Polskiego do produkcji energii elektrycznej
The geothermal potential of Mesozoic aquifers in the Polish Lowlands for the production of the electricity
Autorzy:
Sowiżdżał, A.
Powiązania:
https://bibliotekanauki.pl/articles/204054.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Instytut Gospodarki Surowcami Mineralnymi i Energią PAN
Tematy:
potencjał geotermalny
system binarny
Niż Polski
jura dolna
trias dolny
geothermal potential
binary cycle
Polish Lowlands
Lower Jurassic
Lower Triassic
Opis:
Produkcja energii elektrycznej przy wykorzystaniu niskotemperaturowych zasobów geotermalnych jest technicznie możliwa dzięki zastosowaniu technologii binarnych. W rejonie Niżu Polskiego niskotemperaturowe zasoby geotermalne związane są przede wszystkim z mezozoicznymi zbiornikami geotermalnymi. Największy potencjał hydrogeotermalny związany jest z piaskowcowymi utworami jury dolnej, występującymi w rejonie niecki mogileńsko-łódzkiej oraz niecki szczecińskiej, gdzie temperatury w obrębie zbiornika przekraczają 90°C, a potencjalna wydajność otworów wiertniczych jest odpowiednio wysoka (powyżej 50 m3/h). Znaczny potencjał geotermalny związany jest ze zbiornikiem dolnotriasowym centralnej części Niżu Polskiego, jednak ze względu na niskie parametry petrofizyczne skał zbiornikowych perspektywy produkcji energii elektrycznej należy wiązać w przyszłości przede wszystkim z potencjałem gorących suchych skał dolnego triasu, a nie z zasobami hydrogeotermalnymi.
Electricity production using low-temperature geothermal resources is technically possible by binary technology. The major geothermal resources in the Polish Lowlands are associated with Mesozoic aquifers. The greatest hydrogeothermal potential is connected with the Lower Jurassic sandstone in the Mogilno-Łodz Trough and Szczecin Trough, where the temperature inside the reservoir exceeds 90°C and potential discharge of wells is above 50 m3/h. Significant geothermal resources are associated with the Lower Triassic reservoir in the central part of the Polish Lowlands, however, due to the low petrophysical parameters of reservoir rocks, electricity production should be connecting with the petrogeothermal potential.
Źródło:
Technika Poszukiwań Geologicznych; 2016, R. 55, nr 2, 2; 105-115
0304-520X
Pojawia się w:
Technika Poszukiwań Geologicznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The brachyopoid Hadrokkosaurus bradyi from the early Middle Triassic of Arizona, and a phylogenetic analysis of lower jaw characters in temnospondyl amphibians
Autorzy:
Ruta, M.
Bolt, J.R.
Powiązania:
https://bibliotekanauki.pl/articles/21195.pdf
Data publikacji:
2008
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
brachyopoid
Hadrokkosaurus bradyi
Early Middle Triassic
Triassic
Arizona
phylogenetic analysis
lower jaw
temnospondyl amphibian
amphibian
Temnospondyli
Chigutisauridae
evolution
paleontology
holotype
Opis:
The holotype of the brachyopoid temnospondyl Hadrokkosaurus bradyi, represented by a right lower jaw ramus, is re−examined based upon new data and revision of various morphological features. Additional fragmentary jaw material referred to this species is briefly described. Prominent features are a large postsymphyseal foramen that is anteriorly open, and prearticular and surangular buttresses for support of the articular. Brachyopoid characters include a long and robust postglenoid area formed by surangular and prearticular, anterior and posterior keels on at least some marginal dentary teeth, and subtriangular outline of the adductor fossa in dorsal view. Five features of the holotype ramus, long thought to be at odds with its brachyopoid or temnospondyl nature, are critically re−evaluated. A phylogenetic analysis of lower jaw characters in temnospondyls retrieves most of the clades found in more comprehensive data sets, but the statistical node support is low. Brachyopoids are monophyletic, with Hadrokkosaurus emerging as their most basal taxon.
Źródło:
Acta Palaeontologica Polonica; 2008, 53, 4
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mandibles of mastodonsaurid temnospondyls from the Upper Permian–Lower Triassic of Uruguay
Autorzy:
Pineiro, G.
Marsicano, C.A.
Damiani, R.
Powiązania:
https://bibliotekanauki.pl/articles/22097.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
Buena Vista Formation
Lower Triassic
Mastodonsauridae
South America
mastodonsaurid temnospondyl
Temnospondyli
Upper Permian
Uruguay
jaw
lower jaw
paleontology
morphology
Opis:
Partially preserved temnospondyl mandibles from the Late Permian–Early Triassic Buena Vista Formation of Uruguay are referred to the basal stereospondyl taxon Mastodonsauridae. These represent the earliest known members of this group for South America. In most cases, this assignment was based on the characteristic morphology of the postglenoid (= postarticular) area of the lower jaw together with the presence of a hamate process. Comparisons with basal mastodonsaurids indicate that the Uruguayan specimens are phenetically similar to Gondwanan and Laurasian Early Triassic taxa, such as Watsonisuchus, Wetlugasarus, and Parotosuchus. Nevertherless, they display some characters which have not previously been described in Mesozoic temnospondyls. The Permo−Triassic Uruguayan mastodonsaurids support a Gondwanan origin for the group, an event which probably occurred sometime during the latest Permian.
Źródło:
Acta Palaeontologica Polonica; 2007, 52, 4
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Buntsandstein magnetostratigraphy in Poland : new data from the Brześć Kujawski IG-1 borehole
Autorzy:
Nawrocki, Jerzy
Becker, Anna
Powiązania:
https://bibliotekanauki.pl/articles/1836254.pdf
Data publikacji:
2020
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
magnetic polarity
Lower Triassic
central Poland
Opis:
New magnetostratigraphic data from the Middle Buntsandstein section, drilled in the Brześć Kujawski IG-1 borehole (Central Poland), are presented and discussed. The chronostratigraphic positions of particular formations of the Buntsandstein are discussed as well. The magnetic polarity pattern obtained from the Brześć Kujawski IG-1 borehole matches the pattern obtained earlier in other boreholes from the Polish part of the Central European Basin. Although magnetostratigraphy and palynological evidence undoubtedly indicates that the Induan/Olenekian boundary in the Polish part of the CEB is located in the lower part of the Pomerania Formation, the placement of the Olenekian/Anisian boundary within the sedimentary sequences of the Central European Basin remains problematic. This boundary most probably is located within the upper part of the Upper Buntsandstein, as can be inferred from palynological studies.
Źródło:
Annales Societatis Geologorum Poloniae; 2020, 90, 4; 435-446
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An enigmatic chondrichthyan with Paleozoic affinities from the Lower Triassic of Western Canada
Autorzy:
Mutter, R J
Neuman, A.G.
Powiązania:
https://bibliotekanauki.pl/articles/19949.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
histology
fish
Triassic
Lower Triassic
Paleozoic
Canada
chondrichthyan
paleontology
Listracanthus pectenatus
Western Canada
Opis:
Listracanthus pectenatus sp. nov. represents the youngest record of the enigmatic chondrichthyan Listracanthus. This new species is the only Mesozoic record of this genus and highlights survival of a rare and enigmatic group of cartilaginous fishes across the Paleozoic–Mesozoic boundary. In the Vega−Phroso Siltstone Member of the Sulphur Mountain Formation (western Canada), two kinds of numerous dermal denticles identified as Listracanthus occur predominantly in strata probably of early Smithian age. The new species differs from all other known species of the genus in the structure of the anterior and posterior borders of the large denticles. The small denticles appear to be less diagnostic than the large ones and are readily distinguished from small denticles generally assigned to the genus Petrodus. Histology reveals that the largest denticles were originally hollow, probably secondarily ossified as acellular bone. The conclusion drawn by previous authors that Listracanthus may be a petalodontid shark, based on ambiguous non−skeletal associations with Deltoptychius, Petrodus, or Calopodusis not supported by this study. The large number of denticles, the size of both types of denticles and their arrangement suggest that Listracanthus pectenatus sp. nov. was a large chondrichthyan of aberrant body shape and yet uncertain systematic position.
Źródło:
Acta Palaeontologica Polonica; 2006, 51, 2
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wzbogacenie w REE utworów osadowych w wybranych rejonach obrzeżenia mezozoicznego Gór Świętokrzyskich : obiecujące dane wstępne i potrzeba dalszych badań
REE enrichment of sedimentary formations in selected regions of the Mesozoic margin of the Holy Cross Mountains : promising preliminary data and more research needed
Autorzy:
Mikulski, Stanisław Z.
Brański, Paweł
Pieńkowski, Grzegorz
Małek, Rafał
Zglinicki, Karol
Chmielewski, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/2076190.pdf
Data publikacji:
2021
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
rzadkie elementy ziemi
osady krzemoklastyczne
górny trias
dolna jura
fosforyty dolnokredowe
fosforyty albsko-cenomańskie
rare earth elements
siliciclastic deposits
Upper Triassic
Lower Jurassic
Lower Cretaceous phosphorites
Albian-Cenomanian phosphorites
Opis:
The main task of research was a quantitative and qualitative identification of rare earth elements within various Mesozoic sediments in the surroundings of the Holy Cross Mountains. Over 100 samples from archive boreholes, outcrops and mining waste were analysed using modern methods, like portable XRF, geochemical analysis (ICP-MS), electron microprobe and SEM. Results show enrichments of REE concentrations in sedimentary rock samples from the Niektań PIG-1 borehole (LREE up to 0.95%), Miedary outcrop (LREY up to 0.4%) and Lower Cretaceous phosphorites from mining waste in Chałupki and Annopol (LREE ~0.2%). Further investigation is strongly recommended in order to explain the distribution of REE in the study areas.
Źródło:
Przegląd Geologiczny; 2021, 69, 6; 379--385
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Historia zapisana w kamieniu romańskiej kolegiaty pw. św. Marcina w Opatowie
History recorded in the stones of the Romanesque collegiate church in Opatów
Autorzy:
Magiera, Janusz
Bromowicz, Jan
Powiązania:
https://bibliotekanauki.pl/articles/20206015.pdf
Data publikacji:
2023
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
okres romański
kamieniarstwo
piaskowiec dolnego triasu
piaskowiec dolnej jury
znaki apotropaiczne
Romanesque period
masonry
Lower Triassic sandstone
Lower Jurassic sandstones
apotropaic marks
Opis:
Romanesque collegiate church in Opatów (south-eastern Poland) belongs to the best-preserved Early Mediaeval edifices in Poland. Its date of origin, founder, architects and history are still unclear despite numerous investigations carried out since the beginning of the 19 th century. It is clear that local sandstones were used in the construction of the impressive church. Present investigations resulted in the inventory of the stones used as a building material: their petrography, size of blocks and strange holes and striae on some of their surfaces. Dominant sandstones have different colours: white-greyish or grey-brownish. They are built of very fine-grained, well sorted quartz with siliceous-clayey binder. All sandstone blocks have similar heights (most frequent average 34–38 cm), but different lengths. Longer (up to 62 cm) are placed in the oldest parts of the edifice, shorter (up to 48 cm) form younger fragments and might have been reused after destruction of previous undefined buildups. The sandstones represent Lower Jurassic sediments exposed currently on the slopes of the Opatówka River valley in Podole, some 5 km NE of Opatów. Only a few sherry (reddish) sandstone blocks found in various parts of the walls are probably replacements during post-Romanesque reconstructions. They represent Lower Triassic sandstone from Lipowa, 3 km NE of Opatów. Lancetoidal grooves, 5–20 cm long, and hemispherical holes of 1–4 cm in diameter are apparently of anthropogenic origin (apotropaic marks); however, their purpose is unclear. It is supposed that the grooves are traces of tool sharpening or grinding, while the holes are places where sandy or dusty material was acquired for magical or medical purposes.
Źródło:
Przegląd Geologiczny; 2023, 71, 1; 12-18
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The characteristics of pore space in Lower Triassic sandstones of the Warsaw region
Charakterystyka przestrzeni porowej piaskowców triasu dolnego okolic Warszawy
Autorzy:
Kuberska, Marta
Becker, Anna
Kozłowska, Aleksandra
Powiązania:
https://bibliotekanauki.pl/articles/2061596.pdf
Data publikacji:
2019
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
pore space of sandstones
Lower Triassic
Warsaw region
przestrzeń porowa piaskowców
trias dolny
okolice Warszawy
Opis:
Reservoir and sealing properties of Lower Triassic sandstones from seven boreholes of the central part of the Koszalin-Zamość Synclinorium were investigated in terms of potential levels for underground storage of carbon dioxide. Extensive petrographic studies, image analysis, and investigations of petrophysical properties of rocks and pore space were carried out. The research shows that diagenetic processes both variously affected the intensity of alteration and variously shaped the pore space. Not only primary but also secondary porosity, resulting from diagenetic alteration and dissolution, is observed in the rocks. Microscopic observations revealed that the pore space in studied samples is dominated by macropores. The results obtained indicate a poor suitability of the Lower Triassic deposits for the purpose of carbon dioxide sequestration.
W pracy przedstawiono badania piaskowców triasu dolnego centralnej części synklinorium koszalińsko-zamojskiego pochodzących z siedmiu otworów wiertniczych, pod kątem ich właściwości kolektorsko-uszczelniających w aspekcie potencjalnych poziomów do podziemnego składowania dwutlenku węgla. Przeprowadzono szeroko zakrojone badania petrograficzne, analizę obrazu i badania właściwości petrofizycznych skał oraz przestrzeni porowej. W wyniku przeprowadzonych prac stwierdzono, że procesy diagenetyczne miały różny wpływ na intensywność zmian i w różny sposób kształtowały przestrzeń porową. W skałach zaobserwowano występowanie porowatości pierwotnej, a także wtórnej, powstałej na skutek przeobrażania i rozpuszczania diagenetycznego. Na podstawie obserwacji mikroskopowych uznano, że przestrzeń porowa w badanych próbkach jest zdominowana przez makropory. Wyniki badań wskazują na niewielką przydatność utworów triasu dolnego na potrzeby sekwestracji dwutlenku węgla.
Źródło:
Biuletyn Państwowego Instytutu Geologicznego; 2019, 474; 73--84
0867-6143
Pojawia się w:
Biuletyn Państwowego Instytutu Geologicznego
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kamień w architekturze Pałacu Biskupów Krakowskich w Kielcach – próba identyfikacji
Stone in the architecture of the Palace of the Kraków Bishops in Kielce – an attempt of rock type identification
Autorzy:
Król, Paweł
Fijałkowska-Mader, Anna
Powiązania:
https://bibliotekanauki.pl/articles/20208296.pdf
Data publikacji:
2023
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
Pałac Biskupów Krakowskich w Kielcach
marmurki kieleckie
piaskowce dolnego triasu
Palace of the Kraków Bishops in Kielce
Kielce marbles
Lower Triassic sandstones
Opis:
The authors were the first to attempt to identify the stones used in the architectural elements of the baroque Palace of the Kraków Bishops (built in 1637–1641) in Kielce. The founder of the residence was Bishop Jakub Zadzik of the Korab coat of arms. Despite the vicissitudes of fate, the residence defended itself against major transformations, retaining the original shape and as the decoration of the loggia, and is one of the most beautiful monuments from the Vasa era in Poland. However, the turbulent history of the palace, and especially numerous reconstructions, renovations, transfers of architectural elements as well as modifications and functional changes, caused difficulties in reconstructing the original interior design of the rooms, and especially in determining the periods from which the individual stone elements come. The stone decoration of the original palace was limited to the facade with loggias and figures of Swedish and Moscow envoys, a two-flight staircase and single portals inside the building, as well as the floor and fireplaces in the bishop’s rooms. The floor in the lower hallway and the lower diner room on the ground floor were probably also made of stone. Almost exclusively local stone was used: the so-called Kielce marbles (mainly Bolechowice limestone, “Zygmuntówka” conglomerate and Zelejowa rosa-like calcite) and various types of Lower Triassic sandstones from the Świętokrzyskie deposits. Few elements were made of black Dębnik limestone. Noteworthy is the Sanctuary of Marshal Józef Piłsudski, who was stationed in the palace, together with the legionary staff, in 1914. The interior of the main hall of the sanctuary is made of various types of Kielce marbles, mainly Bolechowice limestone, with elements of white Carrara marble. While the identification of carbonate rocks did not pose any major difficulties, assigning sandstone elements to a specific deposit turned out to be impossible in many cases, e.g. due to lack of comparative material.
Źródło:
Przegląd Geologiczny; 2023, 71, 1; 19-35
0033-2151
Pojawia się w:
Przegląd Geologiczny
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:
Badania mineralizacji REE w utworach pokrywy osadowej masywu Tajna
REE mineralization in the sedimentary cover of the Tajno Massif, NE Poland
Autorzy:
Dymowski, Witold
Powiązania:
https://bibliotekanauki.pl/articles/2076207.pdf
Data publikacji:
2021
Wydawca:
Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
Tematy:
mineralizacja REE
dolny trias
środkowa jura
masyw Tajna
REE mineralization
Lower Triassic
Middle Jurassic
Tajno Massif
Opis:
The paper presents a study of occurrences of REE mineralization in Lower Triassic and Middle Jurassic sedimentary rocks in the Tajno Massif, NE European Platform. Manifestations the REE mineralization occurin siltstones, sandstones, conglomerates and debris, and in other mixed weathered rocks.
Źródło:
Przegląd Geologiczny; 2021, 69, 7; 426--433
0033-2151
Pojawia się w:
Przegląd Geologiczny
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the presence of a pustulated temnospondyl in the Lower Triassic of southern Brazil
Autorzy:
Dias-da-Silva, S.
Ramos Ilha, A.L.
Powiązania:
https://bibliotekanauki.pl/articles/22350.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
temnospondyl
Lower Triassic
Brazil
Temnospondyli
Plagiosauridae
paleobiogeography
Sanga do Cabral Formation
Sangaia lavinai
South America
Opis:
The fossil record of temnospondyls in South America has been greatly expanded in the last 10 years, increasing their overall significance. They occur in Argentina, Brazil, and Uruguay, and range from the Guadalupian to the Late Triassic. The Early Triassic temnospondyl record in southern Brazil is mainly composed of fragmentary specimens, usually represented by dermal skull bones from the Sanga do Cabral Formation. Some of these fragments were tentatively referred to Lydekkerinidae and Rhytidosteidae based on their characteristic ridge−grooved “spider−web” pattern of ornamentation. In this contribution we report, for the first time, a temnospondyl skull fragment with pustulated sculpturing pattern, which is tentatively ascribed to Plagiosauridae. This new record could indicate the presence of a new temnospondyl taxon for the Lower Triassic of South America.
Źródło:
Acta Palaeontologica Polonica; 2009, 54, 4
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The pustulated temnospondyl revisited - a plagiosternine plagiosaurid from the Lower Triassic of Brasil
Autorzy:
Dias-Da-Silva, S
Milner, A.R.
Powiązania:
https://bibliotekanauki.pl/articles/23465.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Paleobiologii PAN
Tematy:
temnospondyl
plagiosternine plagiosaurid
Lower Triassic
Triassic
paleontology
Brazil
plagiosaurid
systematics
morphology
Opis:
A recent contribution published in this journal (Dias−daSilva and Ilha 2009) reported a dermal skull fragment indicating the presence of a putative plagiosauroid temnospondyl in the Lower Triassic Sanga do Cabral Formation of the Paraná Basin, Southern Brazil. The taxonomic assignation of this specimen was necessarily tentative as it was based on circumstantial evidence, specifically the presence of a dense pustular ornamentation over four partial dermal skull bones, consideration of the described taxa known to bear such ornamentation, and the stratigraphic and paleobiogeographic range of such taxa. Therefore, Diasda−Silva and Ilha (2009) could not be totally certain about the plagiosauroid affinities of the new specimen and ascribed it to ?Plagiosauridae. It was particularly difficult to make a precise osteological identification of the specimen and six alternative osteological interpretations were made in comparison to both Gerrothorax and Peltobatrachus (see Dias−da−Silva and Ilha 2009: fig. 2). In spite of the poor taxonomic resolution, the new specimen raised interesting questions regarding the presence of plagiosauroid stereospondyls in western Gondwana, as well as their evolutionary patterns, biostratigraphic and paleobiogeographic implications. After Dias−da−Silva and Ilha's (2009) contribution was published, new data from Damiani et al. (2009) raised the possibility of narrowing down the taxonomic identity of the plagiosauroid from Brazil. Accordingly, this brief report provides a more precise taxonomic assignation for this material.
Źródło:
Acta Palaeontologica Polonica; 2010, 55, 3; 561-563
0567-7920
Pojawia się w:
Acta Palaeontologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
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