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    Wyświetlanie 1-47 z 47
    Tytuł:
    Late Triassic spinicaudatan crustaceans from Southwestern Poland
    Autorzy:
    Olempska, E
    Powiązania:
    https://bibliotekanauki.pl/articles/22647.pdf
    Data publikacji:
    2004
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    crustacean
    Triassic
    Polska
    shell structure
    Spinicaudata
    paleoecology
    Crustacea
    taxonomy
    paleontology
    spinicaudatan crustacean
    Opis:
    An assemblage of well−preserved spinicaudatan crustaceans (“conchostracans”) is described from lacustrine late Carnian claystone at Krasiejów in southwestern Poland. Their shell microstructure is similar to that in extant spinicaudatans. Five species identified there are assigned to the genera Laxitextella, Menucoestheria (first record in the European Triassic), and Menucoestheria bocki sp. nov. and Krasiestheria parvula gen. et sp. nov. are erected. Specimens of Laxitextella laxitexta are the most abundant, comprising nearly half of the assemblage, those of Menucoestheria bocki one quarter, Laxitextella sp. A, Menucoestheria? sp., and Krasiestheria parvula form a minor component. Their ecological setting was probably similar to Recent relatives: temporary ponds of fresh water. The Late Triassic fauna in the German part of the same basin is closely similar to that in Poland. In Europe, the stratigraphic range of Laxitextella laxitexta is limited to the Middle Keuper (middle–late Carnian).
    Źródło:
    Acta Palaeontologica Polonica; 2004, 49, 3
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Reassessment of the late Triassic symmetrodont mammal Woutersia
    Autorzy:
    Sigogneau-Russell, D
    Hahn, R
    Powiązania:
    https://bibliotekanauki.pl/articles/23476.pdf
    Data publikacji:
    1995
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    zeby
    Woutersia butleri
    trias
    ssaki
    skamienialosci
    Woutersia
    cynodonty
    Woutersiidae
    symetrodonty
    Francja
    paleontologia
    Woutersia mirabilis
    paleozoologia
    morfologia zwierzat
    Opis:
    Since the creation of the taxon Woutersia mirabilis Sigogneau-Russell 1983, on a lower molar and two upper molars from the French locality of Saint-Nicolas-de-Port (late Triassic), quite a number of additional mammalian teeth have come to light; among them, are not only some elements undoubtedly belonging to this species, but also 5 teeth interpreted here as representing a second species of Woutersia, W. butleri sp. n. The peculiarities of this second species, especially in the upper molars, allow in turn the presentation and discussion of another upper molar from the same locality, which had remained an enigma for a long time. Though too large to be attributed to W. butleri, this tooth exhibits at a higher degree some characters already detected in the latter species, suggesting that it could still belong to Woutersia: but in that case, its sharing of some derived characters with upper molars of docodonts implies at least a certain parallelism between the new family Woutersiidae and primitive Docodonta.
    Nowe znaleziska izolowanych zębów retyckich Synapsida ze stanowiska Saint-Nicolas-de-Port we Francji, obok licznych Haramiyidae i cynodontów, dostarczyły nowych okazów symetrodontów. Pozwalają one na uzupełnienie diagnozy typowego gatunku rodzaju Woutersia, W. mirabilis i wydzielenie nowego gatunku W. butleri oraz rodziny Woutersiidae wykazującej paralelizmy w morfologii górnych zębów do późniejszych symetrodontów a także specjalizacje do funkcji miażdżenia w pokroju trzonowców.
    Depuis la création du taxon Woutersia mirabilis Sigogneau-Russell 1983 (Mammalia, Theria), sur une molaire inférieure et deux molaires supérieures en provenance du gisement français de Saint-Nicolas-de-Port (Trias supérieur), un grand nombre de dents mammaliennes supplémentaires ont été mises au jour. Parmi celles-ci se trouvent non seulement quelques éléments appartenant indubitablement à cette espéce, mais aussi 5 dents interprétées ici comme représentant une seconde espèce de Woutersia, W. butleri sp. n. Les particularités de cette seconde espéce, spécialement au niveau des molaires supérieures, ont à leur tour permis d'interpréter une autre molaire supérieure du même gisement restée longtemps une énigme. Cette dent, dont la morphologie exagère certains caractères décelés chez W. butleri, tout en étant beaucoup trop grande pour cette espèce, pourrait cependant appartenir au même genre; mais, si cette attribution est exacte, le partage de certains caractères dérivés avec les dents supérieures de Docodontes implique au moins un certain parallélisme entre la nouvelle famille Woutersiidae et les Docodontes primitifs.
    Źródło:
    Acta Palaeontologica Polonica; 1995, 40, 3; 245-260
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mandibular dentition in the Late Triassic temnospondyl amphibian Metoposaurus
    Autorzy:
    Konietzko-Meier, D
    Wawro, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/20771.pdf
    Data publikacji:
    2007
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Silesian region
    Late Triassic
    Metoposaurus diagnosticus krasiejowensis
    mandibular dentition
    Triassic
    Polska
    temnospondyl amphibian
    paleontology
    Opis:
    The Temnospondyli are a large and diverse group of stemtetrapods (sensu Laurin and Reisz 1997) known from the Early Carboniferous to the Early Cretaceous; their remains have been found on all continents, from Greenland to Antarctica. The Metoposauridae are a short−ranging temnospondyl group recorded only from the Late Triassic; they are characterized by an anterior position of the orbits, a broad parasphenoid and a large quadrate foramen. However, unclear is the taxonomic value of the external location of tusks on the dentary. Our analysis of tooth rows in Metoposaurus diagnosticus krasiejowensis from the Triassic (Late Carnian) of Krasiejów (Silesia, SW Poland) shows that the external location of tusks on the dentary is not a synapomorphy for Metoposauridae but a character of great intraspecific variability. Variability of the arrangement of the internal tooth row on the upper jaw has also been observed.
    Źródło:
    Acta Palaeontologica Polonica; 2007, 52, 1
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Dental microwear of a Late Triassic dinosauriform, Silesaurus opolensis
    Autorzy:
    Kubo, T.
    Kubo, M.O.
    Powiązania:
    https://bibliotekanauki.pl/articles/946029.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    dinosauriformes
    silesaurus opolensis
    dental microwear
    jaw movement
    herbivory
    triassic
    poland
    Opis:
    Silesaurus opolensis belongs to Silesauridae, the closest sister group to dinosaurs. The present study analyzed the dental microwear patterns of Silesaurus opolensis. Low pit-to-scratch ratios imply they did not feed on hard objects. Unimodal distributions of both wear-facet and non-facet scratch orientations indicate simple orthal jaw movement. Scratch orientation and density differ between microscopic regions in Silesaurus, and unlike hadrosaurid dinosaurs, the microwear patterns of small areas are not identical to those of whole teeth.
    Źródło:
    Acta Palaeontologica Polonica; 2014, 59, 2; 305-312
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Species discrimination of the Late Triassic temnospondyl amphibian Metoposaurus diagnosticus
    Autorzy:
    Sulej, T
    Powiązania:
    https://bibliotekanauki.pl/articles/20085.pdf
    Data publikacji:
    2002
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Late Triassic
    Metoposauridae
    Triassic
    Polska
    Metoposaurus diagnosticus
    temnospondyl amphibian
    Amphibia
    amphibian
    paleontology
    Opis:
    Re−investigation of the skull roof in Metoposaurus diagnosticus from the German Middle Keuper revealed that in contrast to previous opinions, the lacrimal bone in this species enters the orbital margin.The same pattern is demonstrated by the skulls of a newly discovered metoposaur from the Keuper of Krasiejów in Poland.The difference in the shape of the parietal between the population from Krasiejów and the type population of Metoposaurus diagnosticus enables the discrimination of two separate subspecies within Metoposaurus diagnosticus.For the specimens from the Late Carnian of Drawno Beds at Krasiejów, Poland and its lateral equivalents Lehrberg Beds at Stuttgart−Sonnenberg and Kieselsandstein at Fichtenberg, Germany, a new chronosubspecies Metoposaurus diagnosticus krasiejowensis is erected.The new subspecies differs from the older nominal subspecies M. diagnosticus diagnosticus in having a shorter and wider prepineal part of the parietal.If one accepts that the nominal subspecies is the ancestor of M. krasiejowensisthe change in the shape of the parietal would be a reversal of the trend towards elongating postorbital part of the skull observed in ancestors of the metoposaurids.It seems that the skull development in ontogeny changed after the anterior shift of the orbits occurred in the phylogenetic history of the metoposaurids.The difference in ornamentation of the interclavicle between European Metoposaurus and North American genera is corroborated by Polish material.
    Źródło:
    Acta Palaeontologica Polonica; 2002, 47, 3
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Age and correlation of Late Triassic tetrapods from southern Poland
    Autorzy:
    Lucas, S. G.
    Powiązania:
    https://bibliotekanauki.pl/articles/191907.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    Late Triassic
    Polska
    land-vertebrate faunachron
    Krasiejów level
    Lisowice level
    Adamanian
    Revueltian
    Opis:
    Age assignments of Triassic tetrapod fossils can be achieved by direct reference to a scheme of Triassic land-vertebrate faunachrons (LVFs) that correlates Triassic tetrapod fossil assemblages to each other based solely on the tetrapod fossils. Correlation of Triassic tetrapod assemblages to the standard global chronostratigraphic scale (SGCS, the “marine timescale”) is a separate cross correlation between the vertebrate biochronology and marine biochronology that usually relies on other data (e. g., palynostratigraphy, magnetostratigraphy, radioisotopic ages) to be completed. Late Triassic tetrapod fossils in southern Poland are found at two stratigraphic positions, the Krasiejów and Lisowice levels. The tetrapod assemblage of the Krasiejów level is assigned to the early Adamanian LVF based primarily on the stratigraphic overlap of the phytosaur Parasuchus with the Adamanian index aetosaur Stagonolepis. The amphibians Cyclotosaurus and Gerrothorax, a Proterochersis-like turtle and the aetosaur Paratypothorax from the Lisowice level indicate it is assignable to the Revueltian LVF. Cross correlations to the SGCS are less definitive, but suggest that the Krasiejów level is late Carnian and the Lisowice level is early/middle Norian. However, this correlation of the Krasiejów level is confounded by disagreements over correlation of the marine Carnian–Norian boundary to nonmarine strata. Indeed, the possibility that the Krasiejów tetrapods fill a gap in the early Norian record of tetrapods merits consideration. Such difficulties emphasize the value of correlating tetrapod assemblages to each other using a land-vertebrate biostratigraphy/biochronology, instead of immediately attempting the more problematic correlation to the SGCS.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2015, 85, 4; 627-635
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Cynodont teeth from the Carnian [Late Triassic] of Northern Italy
    Autorzy:
    Renesto, S
    Lucas, S.G.
    Powiązania:
    https://bibliotekanauki.pl/articles/21889.pdf
    Data publikacji:
    2009
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    paleontology
    cynodont
    Carnian
    Late Triassic
    Italy
    Gorno Formation
    morphology
    tooth
    cynodont tooth
    Opis:
    A jaw fragment with three teeth preserved, collected from the Gorno Formation (Carnian, Upper Triassic) of Lombardy (Italy) is described. The teeth are transversely elongated, threecusped and bear anterior and posterior cingula. Their overall morphology supports their identification as postcanines of a “eucynodontian”. The unique tooth morphology of the new specimen supports its attribution to a new genus and species, while at the same time precluding positive assignment to already known gomphodont families. There is a fairly small record of gomphodont cynodonts in Europe, so that the described specimen adds to the knowledge of the distribution and diversity of European gomphodonts and it also represents the first ever collected in Italy.
    Źródło:
    Acta Palaeontologica Polonica; 2009, 54, 2; 357-360
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The first silesaurid dinosauriform from the Late Triassic of Morocco
    Autorzy:
    Kammerer, C.F.
    Nesbitt, S.J.
    Shubin, N.H.
    Powiązania:
    https://bibliotekanauki.pl/articles/20335.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    silesaurid dinosauriform
    Late Triassic
    Morocco
    Dinosauromorpha
    Silesauridae
    Triassic
    North Africa
    Timezgadiouine Formation
    Argana basin
    Diodorus scytobrachion
    dental morphology
    paleontology
    Opis:
    Disarticulated material from the Late Triassic Timezgadiouine Formation in the Argana Basin of Morocco represents a new taxon of silesaurid dinosauromorph, Diodorus scytobrachion gen. et sp. nov. D. scytobrachion can be distinguished from other silesaurids by the presence of anteriorly−canted teeth that decrease in size towards the anterior end of the dentary and a distinct lateral ridge running parallel to the dentary alveolar margin. In a phylogenetic analysis, D. scytobrachion is recovered as the sister−taxon to the Brazilian Sacisaurus agudoensis, nested deep within Silesauridae. This new taxon provides further evidence of a near−cosmopolitan range for basal dinosauriforms in the Late Triassic and further demonstrates the disparity of dental morphologies within Silesauridae.
    Źródło:
    Acta Palaeontologica Polonica; 2012, 57, 2
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A large predatory archosaur from the Late Triassic of Poland
    Autorzy:
    Niedzwiedzki, G.
    Sulej, T.
    Dzik, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/20153.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    predatory archosaur
    archosaur
    Late Triassic
    Polska
    paleontology
    Archosauria
    Dinosauria
    Smok wawelski archosaur
    new species
    Opis:
    We describe a new large predatory archosaur, Smok wawelski gen. et sp. nov., from the latest Triassic (latest Norian–early Rhaetian; approximately 205–200 Ma) of Lisowice (Lipie Śląskie clay−pit) in southern Poland. The length of the reconstructed skeleton is 5–6 m and that of the skull 50–60 cm, making S. wawelski larger than any other known predatory archosaur from the Late Triassic and Early Jurassic of central Europe (including theropod dinosaurs and “rauisuchian” crurotarsans). The holotype braincase is associated with skull, pelvic and isolated limb−bones found in close proximity (within 30 m), and we regard them as belonging to the same individual. Large, apparently tridactyl tracks that occur in the same rock unit may have been left by animals of the same species. The highly autapomorphic braincase shows large attachment areas for hypertrophied protractor pterygoideus muscles on the lateral surface and a wide, funnel−like region between the basal tubera and basipterygoid processes on the ventral surface. The skeleton (cranial and postcranial) possesses some features similar to those in theropod dinosaurs and others to those in large crocodile−line archosaurs (“rauisuchians”), rendering phylogenetic placement of S. wawelski difficult at this time.
    Źródło:
    Acta Palaeontologica Polonica; 2012, 57, 2
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A new triadotypid insect from the Late Triassic of South Africa
    Autorzy:
    DEREGNAUCOURT, ISABELLE
    WAPPLER, TORSTEN
    ANDERSON, JOHN M.
    BÉTHOUX, OLIVIER
    Powiązania:
    https://bibliotekanauki.pl/articles/945629.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    arthropoda
    odonata
    pandiscoidalia
    triassic
    carnian
    molteno formation
    south africa
    Opis:
    Extant odonates (damsel- and dragonflies) represent a small subset of the historical biodiversity of this group. Among their successive stem-groups, the Triadotypomorpha are poorly documented. Herein we describe a new species Reisia rieki from the Molteno Formation (South Africa, Upper Triassic) belonging to this taxon. The comparatively large sample allows a relatively complete description of the wing venation in Triadotypomorpha. We noticed the occurrence of a strongly oblique crossvein located between RA and RP1, a condition documented in some other Pandiscoidalia and which might be of phylogenetic importance. The new species probably inhabited open landscapes and foraged above large water bodies. The documentation of a Gondwanian Triadotypomorpha demonstrates that the group had a worldwide distribution by the Triassic.
    Źródło:
    Acta Palaeontologica Polonica; 2017, 62, 3; 613-618
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Palaeoecology of Late Triassic conodonts: Constraints from oxygen isotopes in biogenic apatite
    Autorzy:
    Rigo, M
    Joachimski, M.M.
    Powiązania:
    https://bibliotekanauki.pl/articles/21341.pdf
    Data publikacji:
    2010
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    paleoecology
    paleontology
    Late Triassic
    conodont
    oxygen isotope
    biogenic apatite
    Conodonta
    paleotemperature
    Triassic
    Tethys
    paleoclimate
    reconstruction
    Opis:
    The oxygen isotopic composition of conodont apatite derived from the Late Triassic (Carnian to lower Norian), Pignola 2 and Sasso di Castalda sections in the Lagonegro Basin (Southern Apennines, Italy) was studied in order to constrain the habitat of Late Triassic conodont animals. Oxygen isotope ratios of conodonts range from 18.5 to 20.8‰ V−SMOW, which translate to palaeotemperatures ranging from 22 to 31ºC, assuming a δ18O of Triassic subtropical sea water of −0.12‰ V−SMOW. These warm temperatures, which are well comparable to those of modern subtropical−tropical oceans, along with the body features of the conodont animal suggest that conodont δ18O values reflect surface water temperatures, that the studied conodont taxa lived in near−surface waters, and that δ18O values of Late Triassic conodonts can be used for palaeoclimatic reconstructions.
    Źródło:
    Acta Palaeontologica Polonica; 2010, 55, 3; 471-478
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A new occurrence of the Late Triassic archosaur Smok in southern Poland
    Autorzy:
    Niedzwiedzki, G.
    Budziszewska-Karwowska, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/20678.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Opis:
    Two isolated teeth, a dorsal vertebra, fragments of a humerus and femur, a fragmentary pubic “boot” and part of an ischium shaft, identified here as belonging to a large predatory archosaur were discovered in the Upper Triassic site at Marciszów near Zawiercie (southern Poland). Comparisons of the new fossils from Marciszów with the dorsal vertebrae, pubic “boot”, ischium and femur of the theropod-like Smok wawelski from Lisowice (Silesia) reveal that the two taxa are very similar. Nevertheless, due to the lack of more diagnostic elements (e.g., braincase or cranial elements), we prefer to consider all described specimens from Marciszów as Smok sp. Smok sp. shares a low mound-like, anterior trochanter with trochanteric shelf on the femur, a massive pubic “boot” with a distinct depression (= bevelled area), and a transversely lenticular ischium shaft in cross-section with S. wawelski. Some observed characters of the dorsal vertebra (e.g., lack of some lamina, shape and position of zygapophyses), however, are different from S. wawelski and may also suggest that the new findings represent a second species of the genus in the Upper Triassic of Poland. The discovery of Smok sp. at Marciszów is significant because it is the second example of the co-occurrence of this genus with: (i) bones of a large dicynodont; and (ii) record of gnawed tetrapod bones. The discovery of Smok sp. and the lack of significant morphologic divergence from S. wawelski suggest that this taxon is the only large-bodied predator currently known from the Upper Triassic of Poland. This new evidence expands the record of the genus and contributes, in some measure, to our knowledge of the stratigraphical distribution of large predatory archosaurs from the Polish Upper Triassic bone-bearing levels.
    Źródło:
    Acta Palaeontologica Polonica; 2018, 63, 4
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Biochronology of Late Triassic Metoposauridae (Amphibia, Temnospondyli) and the Carnian pluvial episode
    Autorzy:
    Lucas, Spencer G.
    Powiązania:
    https://bibliotekanauki.pl/articles/1836255.pdf
    Data publikacji:
    2020
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    land-vertebrate faunachron
    Krasiejów level
    Otischalkian
    Adamanian
    Revueltian
    Apachean
    Carnian wet episode
    Opis:
    During the Late Triassic, metoposaurids were one of the last significant families of temnospondyl amphibians, and they have long been used in the correlation of Late Triassic tetrapod assemblages. Their fossil record extends across much of Late Triassic Pangea, including important metoposaurid fossils from the USA, Canada, Portugal, Germany, Poland, Morocco, India and Madagascar. Six genera of metoposarids are recognized: 1) Adamanian-Apachean Apachesaurus, endemic to the western USA, 2) Otischalkian Arganasaurus and Dutuitosaurus, endemic to Morocco, 3) Otischalkian-Revueltian Koskinonodon, endemic to the western USA, 4) Panthasaurus from the Otischalkian of India, and 5) Otischalkian-Adamanian Metoposaurus, known from the western USA, eastern Canada, Portugal, Italy, Germany, and Poland. Of the metoposaurid genera, only Metoposaurus has a broad enough palaeogeographic distribution and relatively restricted temporal range to be of biochronological value; its biochron identifies the Otischalkian–Adamanian (middle–late Carnian). The oldest metoposaurids are of middle Carnian age, the age of the Carnian pluvial episode of global climate. The middle Carnian broad palaeogeographic distribution, diversity and cosmopolitanism of the metoposaurids, followed by reduced diversity and relative endemism, likely indicates that climate changes were an important factor in their evolution.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2020, 90, 4; 409-418
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A Grallator-dominated tracksite from the Chinle Group (Late Triassic), Moab, Utah
    Autorzy:
    Lockley, M. G.
    Gierlinski, G. D.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059243.pdf
    Data publikacji:
    2009
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Utah
    Moab
    Chinle Group
    footprints
    theropod dinosaurs
    Grallator
    Opis:
    Two roadside localities on the northern fringes of Moab, Grand County, Utah yield previously un-described Upper Triassic vertebrate tracks from the Chinle Group (Rock Point Formation). The first locality, designated the high way 191 site, yields dozens of small theropod dinosaur tracks (Grallator) preserved on a single, fallen slab. The tracks form a monospecific assemblage preserved as natural casts. The assemblage is representative of what has been referred to as Rhaetic assemblage II which is dominated by small Grallator tracks. In situ Grallator tracks are also described from a nearby locality, referred to as the Matrimony Spring site, where they are found in association with the ichnogenus Brachychirotherium. Many other sites with similar, often more-diverse, Late Triassic ichnofaunas are known from the region.
    Źródło:
    Geological Quarterly; 2009, 53, 4; 433-440
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    In quest of cyrtocrinid origins: Evidence from Late Triassic ossicles from the Tatra Mountains
    Autorzy:
    Salamon, M A
    Gorzelak, P.
    Zaton, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/23108.pdf
    Data publikacji:
    2009
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    cyrtocrinid ossicle
    Polska
    Triassic
    Tatras Mountains
    paleontology
    Cyrtocrinida
    Late Triassic
    Opis:
    We report cyrtocrinid (Crinoidea) ossicles from the Rhaetian (Late Triassic) of the Tatra Mountains (southern Poland). The columnals are high, the facets are covered with thick crenulae and the latera are concave. Such features of symplectial articulation and latera distinguish them from the columnals of other Triassic crinoids (i.e., millericrinids and encrinids) and therefore we consider they belong to Cyrtocrinida. The oldest representatives of cyrtocrinids were known from the Early Jurassic, therefore the presented material constitutes the oldest world record of these crinoids to date. We speculate that perturbations related to the global mid−Carnian extinction combined with predation intensity observed in the Middle– Late Triassic have been involved in early origin of Cyrtocrinida.
    Źródło:
    Acta Palaeontologica Polonica; 2009, 54, 1; 171-174
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Late triassic traces of attacks of dipnoan fishes on bivalves of the order Unionoida
    Autorzy:
    Skawina, A.
    Niedzwiedzki, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/83704.pdf
    Data publikacji:
    2010
    Wydawca:
    Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
    Źródło:
    Folia Malacologica; 2010, 18, 3
    1506-7629
    Pojawia się w:
    Folia Malacologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Palaeoecology of tropical marine invertebrate assemblages from the Late Triassic of Misurina, Dolomites, Italy
    Autorzy:
    Hausmann, I.M.
    Nutzel, A.
    Roden, V.J.
    Reich, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2082303.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Mollusca
    Echinodermata
    diversity
    small body size
    Ladinian
    Carnian
    Cassian Formation
    Alps
    Opis:
    Two marine invertebrate fossil assemblages from the Late Triassic Cassian Formation (Dolomites, northern Italy) were examined to assess their diversity and palaeoecology. Surface and bulk samples from the localities Misurina Landslide and Lago Antorno were taken and analysed separately. Both benthic assemblages are relatively similar in taxonomic composition. Gastropods form the most abundant and diverse group, followed by bivalves. Disarticulated echinoderm ossicles are also common in the bulk sample from Misurina Landslide, but they are rare at Lago Antorno. The Misurina Landslide outcrop has yielded two echinoderm Palaeozoic holdovers, the ophiocistioid Linguaserra triassica and plates of putative proterocidarids, supporting the earlier hypothesis that such basins acted as refugia. The gastropod species Coelostylina conica, Prostylifer paludinaris, and Ampezzopleura hybridopsis are characteristic elements of both assemblages. The gastropod Jurilda elongata, however, is the most abundant species at Misurina Landslide, whereas juveniles of the gastropod species Dentineritaria neritina dominate the assemblage from Lago Antorno. Newly described gastropod taxa are Angulatella bizzarinii Nützel and Hausmann gen. et sp. nov., Bandellina compacta Nützel and Hausmann sp. nov., and Ampezzogyra angulata Nützel and Hausmann sp. nov. Fifty-seven invertebrate species were found in the bulk sample from Misurina Landslide and 26 species were recovered from the bulk sample from Lago Antorno. However, sample size from Lago Antorno was much smaller than that from Misurina. Diversity indices (Shannon, Simpson, Berger-Parker) show similar moderate diversities in both assemblages. Rarefaction curves and rank-abundance distributions also point to very similar diversities and ecological structures of the fossil assemblages. Both assemblages are autochthonous or parautochthonous, stemming from basinal, soft-bottom habitats. Their taxonomic composition differs significantly from that of other faunas known from the Cassian Formation. The tropical marine Cassian palaeoecosystem was highly complex and its diversity is still far from being fully explored.
    Źródło:
    Acta Palaeontologica Polonica; 2021, 66, 1; 143-192
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The taxonomy and anatomy of rauisuchian archosaur from the Late Triassic of Germany and Poland
    Autorzy:
    Brusatte, S L
    Butler, R.J.
    Sulej, T.
    Niedzwiedzki, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/21870.pdf
    Data publikacji:
    2009
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    taxonomy
    paleontology
    rauisuchian archosaur
    archosaur
    Late Triassic
    Germany
    Polska
    Teratosaurus suevicus
    Teratosaurus silesiacus
    Postosuchus kirkpatricki
    Polonosuchus
    Archosauria
    Rauisuchia
    Triassic
    anatomy
    Opis:
    The German Late Triassic archosaur Teratosaurus suevicus is a historically important taxon, being the first described rauisuchian. Unfortunately the holotype is a single element, a maxilla, which is poorly preserved and incomplete. We redescribe this maxilla and identify a single potential autapomorphy. The fragmentary type specimen complicates attempts to refer additional material to this taxon, and other unassociated archosaur and rauisuchian specimens from the Mittlerer Stubensandstein of Germany cannot be referred to T. suevicus with any degree of confidence. The stratigraphically older T. silesiacus, from the upper Carnian of Poland, is represented by a much more complete and better preserved specimen. Comparison of the maxillae of T. suevicus and T. silesiacus reveals that the two are distinct taxa, contra recent suggestions, but also that they do not share any synapomorphies or a unique combination of characters relative to Postosuchus kirkpatricki and other rauisuchians. Thus, the Polish material must be transferred to a new genus, Polonosuchus gen. nov. Both Polonosuchus and Teratosaurus are very similar to Postosuchus kirkpatricki, and the three taxa are likely closely related.
    Źródło:
    Acta Palaeontologica Polonica; 2009, 54, 2; 221-230
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An early Late Triassic long-necked reptile with a bony pectoral shield and gracile appendages
    Autorzy:
    DZIK, JERZY
    SULEJ, TOMASZ
    Powiązania:
    https://bibliotekanauki.pl/articles/945469.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    archosauromorpha
    sharovipteryx
    protorosaurs
    gliding
    evolution
    carnian
    poland
    Opis:
    Several partially articulated specimens and numerous isolated bones of Ozimek volans gen. et sp. nov., from the late Carnian lacustrine deposits exposed at Krasiejów in southern Poland, enable a reconstruction of most of the skeleton. The unique character of the animal is its enlarged plate-like coracoids presumably fused with sterna. Other aspects of the skeleton seem to be comparable to those of the only known specimen of Sharovipteryx mirabilis from the latest Middle Triassic of Kyrgyzstan, which supports interpretation of both forms as protorosaurians. One may expect that the pectoral girdle of S. mirabilis, probably covered by the rock matrix in its only specimen, was similar to that of O. volans gen. et sp. nov. The Krasiejów material shows sharp teeth, low crescent scapula, three sacrals in a generalized pelvis (two of the sacrals being in contact with the ilium) and curved robust metatarsal of the fifth digit in the pes, which are unknown in Sharovipteryx. Other traits are plesiomorphic and, except for the pelvic girdle and extreme elongation of appendages, do not allow to identify any close connection of the sharovipterygids within the Triassic protorosaurians.
    Źródło:
    Acta Palaeontologica Polonica; 2016, 61, 4; 805-823
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comparative bone microstructure of three archosauromorphs from the Carnian, Late Triassic Chanares Formation of Argentina
    Autorzy:
    Marsa, J.A.G.
    Agnolin, F.L.
    Novas, F.E.
    Powiązania:
    https://bibliotekanauki.pl/articles/2082158.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Archosauromorpha
    Lagerpeton
    Tropidosuchus
    paleobiology
    paleohistology
    Mesozoic
    South America
    Opis:
    The Chañares Formation exhibits one of the most important archosauriform records of early Carnian ecosystems. Here we present new data on the palaeohistology of Chañares archosauriforms and provide new insights into their paleobiology, as well as possible phylogenetically informative traits. Bone microstructure of Lagerpeton chanarensis and Tropidosuchus romeri is dominated by fibro-lamellar tissue and dense vascularization. On the other hand, Chanaresuchus bonapartei is more densely vascularized, but with cyclical growth characterized by alternate fibro-lamellar, parallel-fibered and lamellar-zonal tissues. Dense vascularization and fibro-lamellar tissue imply fast growth and high metabolic rates for all these taxa. These histological traits may be tentatively interpreted as a possible adaptative advantage in front of Chañares Formation environmental conditions.
    Źródło:
    Acta Palaeontologica Polonica; 2020, 65, 2; 387-398
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A Late Triassic dinosaur-dominated ichnofauna from the Tomanova Formation of the Tatra Mountains, Central Europe
    Autorzy:
    Niedzwiecki, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/19960.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Late Triassic
    Triassic
    dinosaur
    ichnofauna
    Tomanova Formation
    Tatras Mountains
    Central Europe
    Europe
    paleontology
    ichnofossil
    dinosaur track
    paleoichnology
    Polska
    Slovakia
    Opis:
    Osteological fossils of dinosaurs are relatively rare in the Late Triassic and Early Jurassic. Thus, ichnofossils are a critical source of information on Late Triassic terrestrial vertebrate communities. The outcrops of the Tomanová Formation (?late Norian–Rhaetian) in the Tatra Mountains of Poland and Slovakia have yielded a diverse ichnofauna. Seven more or less distinct morphotypes of dinosaur tracks have been recognized and are discussed. Most tracks are partly eroded or deformed, but are preserved well enough to be assigned to a range of trackmakers, including early ornithischians, small and large theropods (coelophysoids and/or possibly early tetanurans), and probably basal sauropodomorphs (“prosauropods”) or first true sauropods.
    Źródło:
    Acta Palaeontologica Polonica; 2011, 56, 2
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Sauropodomorph dinosaur trackways from the Fleming Fjord Formation of East Greenland: Evidence for Late Triassic sauropods
    Autorzy:
    LALLENSACK, JENS N.
    KLEIN, HENDRIK
    MILÀN, JESPER
    WINGS, OLIVER
    MATEUS, OCTÁVIO
    CLEMMENSEN, LARS B.
    Powiązania:
    https://bibliotekanauki.pl/articles/945926.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    dinosauria
    sauropodomorpha
    trackway
    triassic
    greenland
    Opis:
    The Late Triassic (Norian–early Rhaetian) Fleming Fjord Formation of central East Greenland preserves a diverse fossil fauna, including both body and trace fossils. Trackways of large quadrupedal archosaurs, although already reported in 1994 and mentioned in subsequent publications, are here described and figured in detail for the first time, based on photogrammetric data collected during fieldwork in 2012. Two trackways can be referred to Eosauropus, while a third, bipedal trackway may be referred to Evazoum, both of which have been considered to represent sauropodomorph dinosaur tracks. Both the Evazoum and the Eosauropus trackways are distinctly larger than other trackways referred to the respective ichnogenera. The trackmaker of the best preserved Eosauropus trackway is constrained using a synapomorphy-based approach. The quadrupedal posture, the entaxonic pes structure, and five weight-bearing digits indicate a derived sauropodiform trackmaker. Other features exhibited by the tracks, including the semi-digitigrade pes and the laterally deflected unguals, are commonly considered synapomorphies of more exclusive clades within Sauropoda. The present trackway documents an early acquisition of a eusauropod-like pes anatomy while retaining a well-developed claw on pedal digit IV, which is reduced in eusauropods. Although unequivocal evidence for sauropod dinosaurs is no older than the Early Jurassic, the present trackway provides evidence for a possible Triassic origin of the group.
    Źródło:
    Acta Palaeontologica Polonica; 2017, 62, 4; 833-843
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Preliminary report on the microvertebrate faunal remains from the Late Triassic locality at Krasiejów, SW Poland
    Autorzy:
    Kowalski, Jakub
    Bodzioch, Adam
    Janecki, Piotr A.
    Ruciński, Maciej R.
    Antczak, Mateusz
    Powiązania:
    https://bibliotekanauki.pl/articles/191960.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    microvertebrates
    archosauromorphs
    fish
    amphibians
    Triassic
    Keuper
    Polska
    Opis:
    Fossil vertebrate remains from the Keuper unit in the vicinity of the village of Krasiejów have been analyzed for almost two decades. However, the main goal of these works was focused mainly on large vertebrates. Here the authors present the first description of microvertebrate fossils from that site. The collection of around 5,000 specimens is mainly comprised of teeth and scales. The most numerous remains belong to osteichthyans: dipnoans (Ptychoceratodus and cf. Arganodus), palaeoniscids, semionotids, redfieldiids and chondrichthyans, such as Lonchidion sp., which is the first indisputable record of that genus in the Upper Triassic of Poland and the first shark at the Krasiejów locality. Tetrapod fossils consist of temnospondyl amphibians, rhynchocephalian lepidosauromorphs and archosauromorphs. Among them, temnospondyl amphibian remains are the most numerous and are represented mostly by Metoposaurus. However, on the basis of diversity in tooth morphotypes, the occurrence of other taxa cannot be excluded. Rhynchocephalians are composed of 7 fragmentary jaw morphotypes with dentition, which could indicate high taxonomic diversity (cf. Planocephalosaurus, cf. Diphydontosaurus and cf. Clevosaurus). The most varied fossil group was assigned to the archosauromorphs. The authors can distinguish at least 19 teeth morphotypes, which show similarities to the dentition of: protorosaurians (cf. Tanystropheidae), pseudosuchians (cf. Protecovasaurus, cf. Revueltosaurus), early crocodylomorphs and basal sauropodomorph dinosaurs. The first occurrence of a theropod dinosaur and cynodonts at the Krasiejów locality is also recorded. However, their remains are very rare. These new records show a high taxonomic diversity at the Krasiejów locality that contributes to our deeper understanding of Late Triassic ecosystem of Poland.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2019, 89, 3; 291-305
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Diversity in rhynchocephalian Clevosaurus skulls based on CT reconstruction of two Late Triassic species from Great Britain
    Autorzy:
    Chambi-Trowell, S.A.V.
    Whiteside, D.I.
    Benton, M.J.
    Powiązania:
    https://bibliotekanauki.pl/articles/20656.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Opis:
    Clevosaurus was an early sphenodontian, known from many specimens and species from the Late Triassic and Early Jurassic. Here we describe and compare the cranial morphology of Clevosaurus hudsoni, the type species, and Clevosaurus cambrica, both from the UK, based on digital reconstructions from segmented CT scan data of two skulls. C. hudsoni has been described in some detail, but the CT data reveal new information on cranial anatomy, and C. cambrica is a newly described species for which the CT scans enable us to identify many previously undescribed bones, re-identify bones whose identity had previously been uncertain, and refine certain cranial elements. The near complete preservation of the left side of the skull of C. cambrica, and the preservation of much of the left side of the skull of C. hudsoni, provided us with the opportunity to fully reconstruct both species’ skulls in three dimensions. For the first time, coronoid bones are identified in Clevosaurus species from the British Isles. These two species show the diversity of morphology in the genus Clevosaurus. We provide evidence for two morphotypes of C. hudsoni based on study of the dentary dentition of the syntypes and other attributed specimens.
    Źródło:
    Acta Palaeontologica Polonica; 2019, 64, 1
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    An unusual trackway of a possibly bipedal archosaur from the Late Triassic of the Sichuan Basin, China
    Autorzy:
    Xing, L.
    Peng, G.
    Marty, D.
    Ye, Y.
    Klein, H.
    Li, J.
    Gierlinski, G.D.
    Shu, C.
    Powiązania:
    https://bibliotekanauki.pl/articles/22572.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Opis:
    The Longguan dinosaur tracksite in the Sichuan Basin (China) is described. It is located in the uppermost part of the Upper Triassic Xujiahe Formation and displays a single, unusual trackway consisting of 19 deeply impressed pes imprints. All tracks have suffered from erosion over many years of exposure, but they still reveal interesting details such as conspicuous elongated grooves, interpreted here as toe and claw drag marks. The trackmaker, a medium-sized archosaur, was walking in a thick and relatively soft layer of sand. The elongated, oval shape of the footprints resembles the ichnogenus Eosauropus from North America and Europe, assigned to facultative bipedal sauropodomorphs. The Chinese track differs by inward rotation of the footprints toward the midline, whereas in Eosauropus, these are turned strictly outward. Other ichnotaxa and possible trackmakers are discussed, but presently, a distinct assignment cannot be given. The Longguan trackway enlarges the scarce footprint record from the Triassic of China.
    Źródło:
    Acta Palaeontologica Polonica; 2014, 59, 4
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The first ornithosuchid from Brazil and its macroevolutionary and phylogenetic implications for Late Triassic faunas in Gondwana
    Autorzy:
    Muller, R.T.
    Belen von Baczko, M.
    Desojo, J.B.
    Nesbitt, S.J.
    Powiązania:
    https://bibliotekanauki.pl/articles/2082135.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Archosauria
    Pseudosuchia
    Ornithosuchidae
    biogeography
    phylogeny
    Carnian
    Santa Maria Formation
    South America
    Opis:
    Ornithosuchidae is one of the most enigmatic clades of Triassic pseudosuchians. The group is composed by three carnivorous species that were excavated from Upper Triassic beds of Scotland and Argentina. We describe the first ornithosuchid from the Upper Triassic sediments of Brazil and explore its phylogenetic affinities and implications for the evolution of the group. Dynamosuchus collisensis gen. et sp. nov. was found as the sister taxon of the Argentinean form Venaticosuchus rusconii. These relationships reject a potential endemic radiation of ornithosuchids from the Ischigualasto-Villa Unión Basin and would better support multiple diversification events. Our findings with ornithosuchids is consistent with the pattern reported for proterochampsid and erpetosuchid archosauriforms from Ischigualasto-Villa Unión and the Paraná basins. In addition, the presence of an ornithosuchid in the Late Triassic of Brazil suggests that ornithosuchids were more widespread than previously thought in the southern hemisphere. The new ornithosuchid further demonstrates a faunistic link between the Argentinean and Brazilian basins during the Carnian. Finally, the discovery of the new species provides the first clue of a putative necrophagous vertebrate from the oldest dinosaur-bearing beds and expands our knowledge regarding the trophic structure of the Late Triassic of Brazil.
    Źródło:
    Acta Palaeontologica Polonica; 2020, 65, 1; 1-10
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Aetosaur pes from the Upper Triassic of Krasiejów (Poland), with remarks on taxonomy of isolated bones
    Autorzy:
    Górnicki, Szymon
    Antczak, Mateusz
    Bodzioch, Adam
    Powiązania:
    https://bibliotekanauki.pl/articles/2055868.pdf
    Data publikacji:
    2021
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    Aetosauria
    postcranial bones
    pes
    Late Triassic
    Opis:
    The incomplete, articulated, right pes of an aetosaur, extracted from the lower bone-bearing horizon of the Krasiejów Late Triassic site, is larger than any other, known from among the Aetosauria. Its individual bones resemble those of at least three genera: Desmatosuchus (astragalus), Typothorax (ungual phalanges), and Stagonolepis (metatarsals). This underscores the highly speculative nature of the taxonomical classification of isolated postcranial bones and makes it impossible to assign the limb to any particular genus. The phalangeal formula is 2-3-4-5-?; for the fifth finger: 2/3/4 is possible. The anatomy of the pes indicates adaptation for digging.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2021, 91, 4; 389--396
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    New perspectives on the Late Triassic vertebrates of East Greenland: preliminary results of a Polish−Danish palaeontological expedition
    Autorzy:
    Sulej, Tomasz
    Wolniewicz, Andrzej
    Bonde, Niels
    Błażejowski, Błażej
    Niedźwiedzki, Grzegorz
    Tałanda, Mateusz
    Powiązania:
    https://bibliotekanauki.pl/articles/2051136.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Arctic
    Greenland
    stem−mammals
    dinosaurs
    footprints
    Fleming Fjord Formation
    Late Triassic
    Źródło:
    Polish Polar Research; 2014, 4; 541-552
    0138-0338
    2081-8262
    Pojawia się w:
    Polish Polar Research
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    First records of diapsid Palacrodon from the Norian, Late Triassic Chinle Formation of Arizona, and their biogeographic implications
    Autorzy:
    Kiligman, B.T.
    Marsh, A.D.
    Parker, W.G.
    Powiązania:
    https://bibliotekanauki.pl/articles/21091.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Opis:
    Vertebrates from the Triassic Period have broadly disparate tooth shapes and dentition patterns, the result of intense morphospace experimentation following the Permo-Triassic extinction. Here, we describe fragmentary tooth-bearing jaw elements of the rare Gondwanan Middle Triassic taxon Palacrodon that represent first occurrences from the Upper Triassic Chinle Formation in northeastern Arizona. These specimens come from two notably diverse macrovertebrate and microvertebrate assemblages, the “coprolite layer” horizon in Petrified Forest National Park, and the Placerias Quarry near St. Johns, Arizona. Palacrodon is diagnosed by the presence of acrodont maxillary and dentary dentition of labiolingually-widened, bulbous teeth, which are fused to one another mesiodistally, and are pyramidal in lateral view. We agree with previous workers and refer Palacrodon to Diapsida based on the presence of a posterior jugal spur and a quadrate that has a quadratojugal foramen and a concave posterior surface. Formerly known only from the Cynognathus Assemblage Zone in southern Africa and Antarctica, the presence of Palacrodon in the Norian of North America represents a temporal range extension of at least 15 million years and represents the first tetrapod genus known to be present in the Karoo Basin, Fremouw Formation, and the Upper Triassic of the southwestern United States. Range extensions such as this suggest that some vertebrate biostratigraphic hypotheses for the Triassic may be less robust than previously believed and subject to significant sampling biases.
    Źródło:
    Acta Palaeontologica Polonica; 2018, 63, 1
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Soft-sediment deformation structures in cores from lacustrine slurry deposits of the Late Triassic Yanchang Fm. (central China)
    Autorzy:
    Yang, R.
    van Loon, A. J.
    Yin, W.
    Fan, A.
    Han, Z.
    Powiązania:
    https://bibliotekanauki.pl/articles/94445.pdf
    Data publikacji:
    2016
    Wydawca:
    Uniwersytet im. Adama Mickiewicza w Poznaniu
    Tematy:
    soft-sediment deformation structures
    low-density gravity-flow deposits
    Triassic
    lacustrine sediments
    Ordos basin
    China
    struktury deformacji
    osady miękkie
    złoża grawitacyjne o niskiej gęstości
    trias
    osady jeziorne
    zlewnia
    Ordos
    Chiny
    Opis:
    The fine-grained autochthonous sedimentation in the deep part of a Late Triassic lake was frequently interrupted by gravity-induced mass flows. Some of these mass flows were so rich in water that they must have represented slurries. This can be deduced from the soft-sediment deformation structures that abound in cores from these lacustrine deposits which constitute the Yanchang Fm., which is present in the Ordos Basin (central China). The flows and the resulting SSDS were probably triggered by earthquakes, volcanic eruptions, shear stress of gravity flows, and/or the sudden release of overburden-induced excess pore-fluid pressure. The tectonically active setting, the depositional slope and the high sedimentation rate facilitated the development of soft-sediment deformations, which consist mainly of load casts and associated structures such as pseudonodules and flame structures. Sediments with such deformations were occasionally eroded by slurries and became embedded in their deposits.
    Źródło:
    Geologos; 2016, 22, 3; 201-211
    1426-8981
    2080-6574
    Pojawia się w:
    Geologos
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Evidence for a very low-energy fluvial system: a case study from the dinosaur-bearing Upper Triassic rocks of Southern Poland
    Autorzy:
    Gruszka, B.
    Zieliński, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/2060617.pdf
    Data publikacji:
    2008
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    Polska
    Late Triassic
    sedimentology
    vertisol
    meandering river
    anastomosing river
    Opis:
    The Upper Triassic succession in S Poland in which dinosaur bones have been found consists predominantly of siltstones and claystones. Three units are distinguished. The lower most and the upper most units reflect an alluvial environment, whereas the middle one represents lacustrine facies. The lower alluvial unit is interpreted as a record of ephemeral, sinuous, suspended-load channels with rapid vertical accretion. Channel barforms are lack ing. The environmentis interpreted as a low-en ergy anastomosing fluvial system. The clayey middle unit is interpreted as having formed in a wide long-lived lake. The top of the lacustrine deposits shows signs of vertisol-type pedogenesis, most probably under subtropical conditions, with seasonally-inuced wet and dry intervals. The upper unit reflects a low-energy meander ingriver system. Silty point bars were abundant and the channels migrated freely. The energy level of this fluvial system was slightly higher than that of the earlier one, which is interpreted as an effect of base-level lowering in combination with an increasingly humid climate. The al most exclusively silty/clayey alluvial deposits represent an exceptionally rare facies. The drainage basin must have been an extremely flat lowland. The presence of vertebrate bones within the anastomosing and meandering river deposits indicates that low-en - ergy alluvial plains were apparently favourable habitats for both reptiles and amphibians during the Late Triassic: under the subtropical, seasonally dry conditions, the animals must have preferred moist lowareas, i.e. the flood basins and abandoned channels on the flat valley floors.
    Źródło:
    Geological Quarterly; 2008, 52, 3; 239-239
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Comment on “An early Late Triassic long-necked reptile with a bony pectoral shield and gracile appendages” by Jerzy Dzik and Tomasz Sulej
    Autorzy:
    SZULC, JOACHIM
    RACKI, GRZEGORZ
    BODZIOCH, ADAM
    Powiązania:
    https://bibliotekanauki.pl/articles/945248.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Źródło:
    Acta Palaeontologica Polonica; 2017, 62, 2; 287-288
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A re-evaluation of the enigmatic dinosauriform Caseosaurus crosbyensis from the Late Triassic of Texas, USA and its implications for early dinosaur evolution
    Autorzy:
    Baron, M.G.
    Williams, M.E.
    Powiązania:
    https://bibliotekanauki.pl/articles/21558.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Opis:
    The holotype specimen of the Late Triassic dinosauriform Caseosaurus crosbyensis is redescribed and evaluated phylogenetically for the first time, providing new anatomical information and data on the earliest dinosaurs and their evolution within the dinosauromorph lineage. Historically, Caseosaurus crosbyensis has been considered to represent an early saurischian dinosaur, and often a herrerasaur. More recent work on Triassic dinosaurs has cast doubt over its supposed dinosaurian affinities and uncertainty about particular features in the holotype and only known specimen has led to the species being regarded as a dinosauriform of indeterminate position. Here, we present a new diagnosis for Caseosaurus crosbyensis and refer additional material to the taxon—a partial right ilium from Snyder Quarry. Our comparisons and phylogenetic analyses suggest that Caseosaurus crosbyensis belongs in a clade with herrerasaurs and that this clade is the sister taxon of Dinosauria, rather than positioned within it. This result, along with other recent analyses of early dinosaurs, pulls apart what remains of the “traditional” group of dinosaurs collectively termed saurischians into a polyphyletic assemblage and implies that Dinosauria should be regarded as composed exclusively of Ornithoscelida (Ornithischia + Theropoda) and Sauropodomorpha. In addition, our analysis recovers the enigmatic European taxon Saltopus elginensis among herrerasaurs for the first time. This result suggests a greater body-size range for herrerasaurs than previously thought and provides further evidence for their presence in Europe during the Late Triassic. If this hypothesis is correct then this clade of herrerasaurs also represents the first clade of non-dinosaurian dinosauromorphs known to contain large-bodied carnivorous species. The results of our analyses also highlight the distinction between the clades Herrerasauridae and Herrerasauria, as they are currently defined, and necessitate a provisional revival of the latter until future works can better resolve the relationships among these important early taxa.
    Źródło:
    Acta Palaeontologica Polonica; 2018, 63, 1
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    New sauropodomorph and cynodont remains from the Late Triassic Sacisaurus site in southern Brazil and its stratigraphic position in the Norian Caturrita Formation
    Autorzy:
    Marsola, J.C.A.
    Bittencourt, J.S.
    Da Rosa, A.A.S.
    Martinelli, A.G.
    Ribeiro, A.M.
    Ferigolo, J.
    Langer, M.C.
    Powiązania:
    https://bibliotekanauki.pl/articles/21152.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Opis:
    Sacisaurus agudoensis is the only silesaurid known from the Triassic beds of the Santa Maria Supersequence and the correlation of its type locality to the other Triassic deposits of south Brazil has always been controversial. In an attempt to improve this, a handful of dinosaur and cynodont remains found associated to S. agudoensis are here described and compared. The anatomy of the sauropodomorph is more similar to that of Norian forms such as Pantydraco caducus and Unaysaurus tolentinoi than to that of Carnian taxa such as Saturnalia tupiniquim and Pampadromaeus barberenai. The cynodonts recovered based on isolated teeth include a brasilodontid and a Riograndia-like form. This assemblage is consistent with a Norian age, as is also suggested by local stratigraphic correlation, which positions the site in the Caturrita Formation.
    Źródło:
    Acta Palaeontologica Polonica; 2018, 63, 4
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A new caenogastropod from the upper Rhaetian of Lombardy: Palaeobiogeographical history and implications for the Early Jurassic gastropod recovery
    Autorzy:
    Pieroni, V.
    Monari, S.
    Todd, J.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2082280.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Gastropoda
    Zygopleuridae
    systematics
    palaeobiogeography
    faunal recovery
    Jurassic
    Late Triassic
    Italy
    Southern Alps
    Opis:
    A new gastropod genus and its type species, namely Ederazyga fanchini gen. et sp. nov., are described from the upper Rhaetian deposits of Lombardy (northern Italy) and tentatively placed into the family Zygopleuridae. The first appearance of Ederazyga is recorded in the lower Carnian deposits of Southern Alps and the stratigraphical distribution of the genus ends almost at the Triassic/Jurassic boundary. Its occurrence in Norian beds of the Nayband Basin (central Iran) suggests an eastward extension of the distribution during that time. Ederazyga is probably one of the Alpine gastropod taxa appearing in this area after the formation of the basin. The genus is possibly related to a group of Early Jurassic, medium to large Zygopleura-like species that are well represented in the Sinemurian and Pliensbachian carbonate platform deposits of the Mediterranean region and in the Hettangian to Pliensbachian successions of the European epicontinental shelf. This group shows an apparent species radiation in these areas testifying to the gastropod recovery following the Late Triassic decline in biodiversity. Ederazyga fanchini is shown to be congeneric with Cerithium? lateplicatum Klipstein, 1843, which is the type species of Camponaxis Bandel, 1995. The definition and diagnosis of Camponaxis was based on specimens that are clearly different, at generic and higher taxonomic levels, from the holotype of C.? lateplicatum. They belong to a distinct species here named Camponaxis bandeli sp. nov. Several species have been subsequently ascribed to Camponaxis following its original diagnosis. Therefore, we invoke ICZN Art. 70.3.2 in order to preserve the unambiguous identity of the genus and to ensure its nomenclatural stability. Camponaxis bandeli is fixed as the new type species for Camponaxis and C.? lateplicatum is here assigned to Ederazyga.
    Źródło:
    Acta Palaeontologica Polonica; 2021, 66, 1; 193-206
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A dicynodont-theropod association in the latest Triassic of Poland
    Autorzy:
    Dzik, J.
    Sulej, T.
    Niedźwiedzki, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/20095.pdf
    Data publikacji:
    2008
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    dicynodont-theropod association
    Triassic
    Polska
    dicynodont
    theropod dinosaur
    bone
    paleontology
    skeleton
    fossil
    Late Triassic
    Opis:
    It is generally accepted that during the Triassic the composition of tetrapod faunas underwent a series of fundamental transformations, mainly as a result of diversification of archosaurs and decline of therapsids (Benton 1994, 2004, 2006). The last herbivorous basal synapsids, dicynodonts, disappeared from the record in the early Norian of the Americas, about 220 Ma (Langer et al. 2007), being unknown from the Late Triassic of Europe. Here, we report a partially articulated skeleton and isolated bones of a giant rhino−size dicynodont in the Upper Triassic fluvial sediments at Lisowice (Lipie Śląskie clay−pit) in southern Poland. Paleobotanical data indicate an early Rhaetian age for the fauna (Dzik et al. 2008; Niedźwiedzki and Sulej 2008). The dicynodont bones are associated with bones of carnivorous dinosaurs, pterosaurs, as well as capitosaur and plagiosaur amphibians. Dicynodonts were represented in the Germanic Basin throughout the Late Triassic, as proven by findings of smaller dicynodonts in older deposits in the same area, associated there with temnospondyl amphibians. It appears, thus, that the fossil record of tetrapod succession in the Late Triassic was strongly controlled by ecological factors and biased by uneven representation of particular environments. The Lisowice assemblage proves that faunas dominated by dicynodonts did not entirely disappear at least until the end of the Triassic.
    Źródło:
    Acta Palaeontologica Polonica; 2008, 53, 4
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The earliest known venomous animals recognized among conodonts
    Autorzy:
    Szaniawski, H.
    Powiązania:
    https://bibliotekanauki.pl/articles/20967.pdf
    Data publikacji:
    2009
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    venomous animal
    conodont
    Vertebrata
    Conodonta
    marine animal
    Late Cambrian
    Late Triassic
    vertebrate
    fossil
    paleobiology
    Opis:
    Conodonts, a large group of tiny extinct marine animals ranging in age from the Late Cambrian to Late Triassic (ca. 500 to 200 Mya), are usually considered as jawless vertebrates. Their only commonly occurring fossilized remains are minute, phosphatic, teeth−like elements of their feeding apparatuses. In most of the early conodonts the elements were conical and strongly elongated. Many of them are characterized by possession of a deep, longitudinal groove, usually associated with sharp edges or ridges. A comparative study of the grooved elements and venomous teeth and spines of living and extinct vertebrates strongly suggests that the groove in conodonts was also used for delivery of venom. Structural convergence of the conodont apparatus Panderodus with the grasping apparatus of chaetognaths, a group of extant, venomous invertebrate predators of similarly ancient origin, provides additional support for this conclusion.
    Źródło:
    Acta Palaeontologica Polonica; 2009, 54, 4
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ewolucja środowisk lądowych kajpru Górnego Śląska jako biotopów kręgowców-nowy projekt badawczy
    Evolution of Late Triassic terrestrial do permsko-triasowych stanowisk as vertebrate habitats-a new research project
    Autorzy:
    Racki, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/2066276.pdf
    Data publikacji:
    2010
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    biotopy kręgowców
    Górny Śląsk
    vertebrate habitats
    Upper Silesia
    Źródło:
    Przegląd Geologiczny; 2010, 58, 2; 124-126
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A new Metapolygnathus platform conodont species and its implications for Upper Carnian global correlations
    Autorzy:
    Mazza, M.
    Rigo, M.
    Nicora, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/22935.pdf
    Data publikacji:
    2011
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Carnian
    Conodonta
    Late Triassic
    Metapolygnathus
    Metapolygnathus praecommunisti
    stratigraphy
    Triassic
    conodont
    geological setting
    new species
    paleontology
    phylogenesis
    systematics
    holotype
    Paragondolella noah
    gondolellid conodont
    Opis:
    A rich conodont fauna from two Neotethyan sections, Pizzo Mondello (western Sicily, Italy) and Pignola 2 sections (southern Apennines, Italy) includes conodonts described herein as a new species. Metapolygnathus praecommunisti sp. nov. is transitional between Paragondolella noah and Metapolygnathus communisti. The genus Metapolygnathus (including M. praecommunisti) is now characterised by posterior prolongation of the keel termination, associated with a centrally located pit and with a weak ornamentation confined to the anterior part of the platform margins. The establishment of M. praecommunisti addresses the problems related to the origin and the peculiar, probably facies−controlled, distribution of its descendant species M. communisti. Since M. praecommunisti occurs in the entire Tethys and in North America, we propose the species as a good guide fossil for global correlations, characterised by a short temporal range limited to the uppermost Tuvalian (upper Carnian). The stratigraphic occurrence of the genus Metapolygnathus is restricted to the Tuvalian–Lacian (upper Carnian–lower Norian), excluding its presence in the Julian substage (lower Carnian).
    Źródło:
    Acta Palaeontologica Polonica; 2011, 56, 1
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The last erythrosuchid - a revision of Chalishevia cothurnata from the late Middle Triassic of European Russia
    Autorzy:
    Butler, R.J.
    Sennikov, A.G.
    Ezcurra, M.D.
    Gower, D.J.
    Powiązania:
    https://bibliotekanauki.pl/articles/19956.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Opis:
    Erythrosuchidae is a clade of early archosauriform reptiles that were large-bodied, hypercarnivorous, possibly apex predators in late Early and Middle Triassic ecosystems following the Permo-Triassic mass extinction. Chalishevia cothurnata from the late Middle Triassic (Ladinian) of Russia, is the stratigraphically youngest known erythrosuchid species, but the holotype and referred material of this taxon has received little study. Here, we provide the first detailed anatomical description of C. cothurnata, including comparisons to other erythrosuchids. Although known from relatively fragmentary material, the anatomy of C. cothurnata is distinctive, including an autapomorphic strongly slanted ventral border of the antorbital fossa. The presence of a large accessory opening (the “accessory antorbital fenestra”) in the skull between the premaxilla, nasal and maxilla, together with the inferred presence of a narrow postnarial process of the premaxilla that articulated with a slot on the nasal, provides strong evidence for a sister taxon relationship between C. cothurnata and the erythrosuchid Shansisuchus shansisuchus from the early Middle Triassic (Anisian) of China. The inferred basal skull length of C. cothurnata was approximately 80 cm, making it one of the largest erythrosuchids known.
    Źródło:
    Acta Palaeontologica Polonica; 2019, 64, 4
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The ferns of the Late Ladinian, Middle Triassic flora from Monte Agnello, Dolomites, Italy
    Autorzy:
    Kustatscher, E.
    Dellantonio, E.
    Van Konijnenburg-van Cittert, J.H.A.
    Powiązania:
    https://bibliotekanauki.pl/articles/21744.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    fern
    Dipteridaceae
    Matoniaceae
    Phlebopteris
    Cladophlebis
    Chiropteris
    Thaumatopteris
    plant fossil
    fossil
    paleobotany
    Late Ladinian
    Middle Triassic
    flora
    Dolomites
    Italy
    Opis:
    Several fern remains are described from the para-autochthonous early late Ladinian flora of the Monte Agnello (Dolomites, N-Italy). The plants are preserved in subaerially deposited pyroclastic layers. Some ferns, known already from the Anisian and Ladinian of this area, are confirmed (Neuropteridium elegans), but several taxa are described for the first time (Phlebopteris fiemmensis sp. nov., Cladophlebis ladinica sp. nov., Chiropteris monteagnellii sp. nov.). Cladophlebis sp. and some indeterminable fern remains cannot yet be assigned to any family. Phlebopteris fiemmensis is now the oldest formally established species in the genus. The fern family Dipteridaceae (Thaumatopteris sp. and some fragments probably belonging to the Dipteridaceae because of their venation) has not been recorded previously from European sediments as old as the Ladinian. Although stratigraphically attributed to the late Ladinian, the flora is markedly distinct from other Ladinian floras of the Dolomites and the Germanic Basin. The flora from Monte Agnello shows a higher diversity in ferns than coeval floras from this area although characteristic elements of the Ladinian of the Dolomites such as Anomopteris and Gordonopteris are missing. The new flora misses also the Marattiales (e.g., Danaeopsis, Asterotheca) and other elements such as Sphenopteris schoenleiniana, typical for the Ladinian of the Germanic Basin.
    Źródło:
    Acta Palaeontologica Polonica; 2014, 59, 3
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Decompression syndrome and diving behavior in Odontochelys, the first turtle
    Autorzy:
    Rothschild, B.M.
    Naples, V.
    Powiązania:
    https://bibliotekanauki.pl/articles/945596.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    Testudines
    Odontochelys semitestacea
    turtle
    diving behaviour
    bone
    pathology
    avascular necrosis
    osteonecrosis zob.avascular necrosis
    bone infarction zob.avascular necrosis
    aseptic necrosis zob.avascular necrosis
    ischaemic bone necrosis zob.avascular necrosis
    Triassic
    Late Triassic
    China
    Opis:
    Odontochelys semitestacea, the oldest known turtle, from the Late Triassic of China, shows a pathology. Sharply defined, focal depressions were noted on the articular surfaces of both humeri, documenting avascular necrosis. Diving habits of Mesozoic marine reptiles have been characterized on the basis of this localized form of bone death attributed to decompression syndrome. Pursuit by a predator was likely the cause of dangerously rapid depth changes by swimming turtles. The prevalence of avascular necrosis decreased geometrically from the Cretaceous to the Pleistocene. This study suggests that the habit of repetitive diving in turtles was already present in the Late Triassic, but that protective physiological and behavioral adaptations had not yet evolved.
    Źródło:
    Acta Palaeontologica Polonica; 2015, 60, 1; 163-167
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Palinostratygrafia, paleoekologia i paleoklimat późnego permu i triasu niecki Nidy
    Palynostratigraphy, palaeoecology and palaeoclimate of the late Permian and Triassic of the Nida Basin
    Autorzy:
    Fijałkowska-Mader, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2062140.pdf
    Data publikacji:
    2013
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    palinostratygrafia
    paleośrodowisko
    paleoklimat
    perm
    trias
    niecka Nidy
    palynostratigraphy
    palaeoenvironment
    palaeoclimate
    Permian
    Triassic
    Nida Basin
    Opis:
    Praca stanowi pierwsze kompleksowe opracowanie biostratygrafii utworów permu górnego i triasu niecki Nidy. Wyróżniono dziesięć poziomów palinologicznych. Wyniki badań mikroflorystycznych potwierdziły problematyczną dotychczas obecność utworów późnego anizyku i wczesnego ladynu. Pozwoliły także na sprecyzowanie granic między indem i olenkiem oraz norykiem i retykiem. Wyniki zastosowanych w badaniach palinologicznych analiz paleośrodowiskowej i paleoklimatycznej wykazały dominację form sucholubnych w zespołach miosporowych. Wskazują również na przewagę klimatu suchego w późnym permie i triasie na badanym obszarze. Zwiększoną ilość mikroflory wilgotnolubnej obserwuje się w olenku, ladynie, noryku i retyku. Przeważająca w późnym permie i triasie kontynentalna sedymentacja w środowiskach rzecznych, jeziornych, playi i sebki była przerywana przez transgresje morskie, które miały miejsce w późnym wuchiapingu, wczesnym indzie, anizyku i ladynie.
    Ten miospore zones are identified in the Upper Permian and Triassic succession of the Nida Basin. This is the first complete biostratigraphical study of these sediments. The palynological investigation confirmed the presence of the late Anisian and early Ladinian. In addition, they allowed determining more precisely the boundaries between Induan and Olenekian as well as Norian and Rhaetian. Xeromorphic elements dominate the Upper Permian and Triassic palynomorph spectra from the Nida Basin and reflect a mainly dry palaeoclimate. Significant numbers of hygromorphic elements indicating temporarily humid phases, occur in the Olenekian, Ladinian, Norian and Rhaetian. Continental sedimentation in fluvial, lacustrine, coastal, playa and sabkha environments prevailed during most of the Late Permian and Triassic but was interrupted by marine transgressions in the late Wuchiapingian, early Induan, Anisian as well as Ladinian.
    Źródło:
    Biuletyn Państwowego Instytutu Geologicznego; 2013, 454; 15--70
    0867-6143
    Pojawia się w:
    Biuletyn Państwowego Instytutu Geologicznego
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Late Permian vertebrate tracks from the Tumlin Sandstone of Poland - a commentary on some major implications
    Autorzy:
    Racki, G
    Powiązania:
    https://bibliotekanauki.pl/articles/22453.pdf
    Data publikacji:
    2005
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Tematy:
    terrestrial vertebrate
    Triassic
    Polska
    Permian
    Late Permian
    Holy Cross Mountains
    vertebrate
    paleontology
    Opis:
    The article by Ptaszyński and Niedźwiedzki (2004) on vertebrate tracks from the well−known Tumlin Sandstone provides important documentation of the unique terrestrial ichnofauna of the Holy Cross Mountains in Poland. However, two of the major conclusions of this paper raise my objections. The authors propose a new position for the Permian–Triassic (P–Tr) boundary within the Buntsandstein succession of the regional lithostratigraphical scheme. In a conclusion of global significance, the authors find no signature of a mass extinction in the Late Permian land−dwelling tetrapod communities. Both of these issues are reviewed below.
    Źródło:
    Acta Palaeontologica Polonica; 2005, 50, 2
    0567-7920
    Pojawia się w:
    Acta Palaeontologica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Middle Triassic evolution of the Tatricum sedimentary basin : an attempt of sequence stratigraphy to the Wierchowa Unit in the Polish Tatra Mountains
    Autorzy:
    Jaglarz, P.
    Szulc, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/191483.pdf
    Data publikacji:
    2003
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    basin analysis
    paleoenvironments
    sequence stratigraphy
    late Scythian-Ladinian
    Tatra Mts.
    Opis:
    The paper focuses on paleoenvironmental reconstruction and sequence stratigraphy of the Tatricum Basin for the late Scythian-Ladinian interval. The reconstruction is based on observations carried out in the Kominiarski Wierch section, situated in the Polish part of the Tatra Mts. Sedimentological and geochemical studies indicate that during middle Triassic time the Tatricum Basin was situated upon an isolated and restricted carbonate platform dominated by shallow water carbonate and evaporitic sedimentation. The basin was a tectonically stable area controlled by eustatic fluctuations. Incipient tectonic movements first occurred in late Ladinian time only. The studied sedimentary succession is composed of several stacked, shallowing-upward cycles that are interpreted as 3rd order depositional sequences. The constructed sedimentary sequence framework corresponds well with the sequence stratigraphic scheme of the Northern Alpine Triassic and enables a better chronostratigraphic resolution of the Triassic in the Tatra Mts.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2003, 73, No 3; 169-182
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Middle Triassic evolution of the northern Peri-Tethys area as influenced by early opening of the Tethys Ocean
    Ewolucja środkowotriasowa północnej Paratetydy i jej związki z rozwojem Oceanu Tetydy
    Autorzy:
    Szulc, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/191262.pdf
    Data publikacji:
    2000
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    late Scythian-Carnian
    Tethys
    Peri-Tethys
    basin analysis
    sequence stratigraphy
    paleogeography
    paleoenvironments
    Opis:
    During Middle Triassic times, the Germanic or northern Peri-Tethys Basin pertained to the western Tethys Ocean. The basin was closed from the north and open toward the Tethys by tectonically controlled depressions (gates). The gates were opened in different times. The marine incursions broke first (as early as in late Scythian time) through the eastern gates and from the Polish Basin advanced gradually to the west. Semiclosed disposition of the basin resulted in its distinctive environmental diversification. Open marine environments developed along the southeastern margins which should be regarded as an integrate part of the Tethys Ocean rather than the epicontinental sea. Northward and westward from the Silesian and Carpathian domains the environments became more restricted. This resulted in significant facies diachronity between the western and eastern parts of the basin. As indicated by the faunal diversity, facies variability and geochemical properties of the sediments, during almost entire Anisian time the open marine sedimentation dominated in the eastern part while the western part displayed restricted circulation, typical for the semi-closed, evaporitic basin. The circulation reversed in Ladinian time when the westward shift of the tethyan spreading center gave rise to opening of the western gate. Meanwhile, the eastern and northern parts of the basin were uplifted and underwent emersion by the end of the Ladinian. Evolution of the southern parts of the Germanic Basin (Silesia, Holy Cross Mts., SW Germany) has been directly influenced by the Tethys rifts. The crustal motion was transmitted from the Tethys rift onto its northern periphery by reactivated Hercynian master faults. The Northern Germany and the North Sea basins were controlled by the North Atlantic-Arctic rift system. The central part of the basin was dominated by thermal subsidence. Despite of the intense synsedimentary tectonism affecting the basin, the distinguished 3rd order depositional sequences resulted from eustatic controls. The concordance between the tethyan and peritethyan sequence stratigraphy argues for the overregional, eustatic nature of the sequences. Faunal migration from the Tethys into its northern periphery followed generally the rift-controlled opening of the seaways within the Tethys. The first tethyan faunas which appeared in the south-eastern part of the Polish Basin as early as in Induan time came from the eastern branch of the Tethys Ocean (Paleo-Tethys). The next migration waves proceeded by western branches of the spreading ocean (Neo-Tethys) and entered the Germanic Basin through the Silesian-Moravian Gate (in Anisian time) and through the Western Gate from Ladinian time onward.
    W czasie środkowego triasu basen germański należał do północnego obrzeżenia Oceanu Tetydy nazywanego północną Perytetydą. Taka pozycja paleogeograficzna wskazuje że basen germański należy traktować raczej jako integralną część zachodniej Tetydy niż jako typowy basen epikontynentalny. Bezpośrednie połączenie między obszarem germańskim a Tetydą utrzymywane było przez system tektonicznie generowanych obniżeń (bram) rozwiniętych w obrębie speneplenizowanego lądu windelicko-bohemskiego stanowiącego strukturalną barierę między otwartym oceanem i jego strefą peryferyjną. Przez większą część środkowego triasu basen germański wykazywał cechy basenu półzamkniętego o ograniczonej i jednokierunkowej cyrkulacji. Taki układ hydrologiczny powodował ewaporacyjny wzrost zasolenia wód basenu w miarę oddalania się od strefy dopływu wód oceanicznych. Znajduje to potwierdzenie w wyraźnym ubożeniu zespołów fauny zasiedlającej zbiornik jak i w zapisie izotopów stabilnych węgla i tlenu. Otwieranie bram miało charakter diachroniczny i postępowało ze wschodu na zachód. Najwcześniej, bo już w środkowej części wczesnego triasu otwarta była tzw. Brama Wschodniokarpacka. W anizyku głównym połączeniem była Brama Morawsko-Śląska a w ladynie Brama Zachodnia. Diachronizm w otwieraniu bram był pochodną migracji głównej strefy spreadingu tetydzkiego, która przemieszczała się ze wschodu na zachód. Wyróżnione dla basenu germańskiego sekwencje depozycyjne trzeciego rzędu wykazują dobrą korelację z sekwencjami z basenów alpejskich co pozwala stwierdzić, że cykle transgresywno-regresywne w basenie germańskim kontrolowane były głównie przez wahania eustatyczne. Subtropikalna pozycja paleogeograficzna północnej Perytetydy warunkowała jej gorący i półsuchy klimat. Okresowe zwilgotnienia w późnym ladynie i w karniku były pochodną przebudowy tektonicznej i intensywnej działalności wulkanicznej w obrębie Tetydy.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2000, 70, 1; 1-48
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Late Carboniferous-Neogene geodynamic evolution and paleogeography of the circum-Carpathian region and adjacent areas
    Późnokarbońsko-neogeńska geodynamiczna ewolucja i peleogeografia rejonu wokółkarpackiego i obszarów przyległych
    Autorzy:
    Golonka, J.
    Oszczypko, N.
    Ślączka, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/191280.pdf
    Data publikacji:
    2000
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Tematy:
    plate tectonics
    paleogeography
    Tethys
    Mediterranean
    Carpathians
    Carboniferous
    Triassic
    Jurassic
    Cretaceous
    neogene clays
    Opis:
    Twelve time interval maps were constructed which depict the plate tectonic configuration, paleogeography and general lithofacies. The aim of this paper is to provide the geodynamic evolution and position of the major tectonic elements of the area within the global framework. The Hercynian orogeny was concluded with the collision of Gondwana and Laurussia, whereas the Tethys Ocean formed the embayment between the Eurasian and Gondwanian branches of Pangea. The Mesozoic rifting events resulted in the origin of the oceanic type basins like Meliata and Pieniny along the northern margin of the Tethys. Separation of Eurasia from Gondwana resulted in the formation of the Alboran-Ligurian-Pieniny Ocean as a part of the Pangean breakup tectonic system. During the Late Jurassic-Early Cretaceous time, the Outer Carpathian rift had developed. Latest Cretaceous-earliest Paleocene was the time of the closure of the Pieniny Ocean. Adria-Alcapa terranes continued their northward movement during Eocene-Early Miocene time. Their oblique collision with the North European plate led to the development of the accretionary wedge of Outer Carpathians and foreland basin. The formation of the West Carpathian thrusts was completed by the Miocene time. The thrust front was still progressing eastwards in the Eastern Carpathians.
    Dla obszaru wokółkarpackiego skonstruowano 12 map przedstawiających konfigurację płyt litosferycznych, paleogeografię i uproszczony rozkład litofacji w okresie od późnego karbonu po neogen. Przedstawiono ewolucję geodynamiczną tego rejonu na tle ruchu płyt i pozycji głównych elementów tektonicznych w globalnym układzie odniesienia. Orogeneza hercyńska zakończyła się kolizją Gondwany i Laurusji, a Ocean Tetydy utworzył zatokę pomiędzy dwom a ramionami Tetydy - Gondwaną i Laurazją. W wyniku mezozoicznych ryftów wzdłuż północnej krawędzi Oceanu Tetydy powstało szereg basenów typu oceanicznego takich jak Meliata i basen pieniński. Ocean alborańsko-liguryjsko-pieniński powstał w wyniku oddzielenia się Gondwany i Laurazji jako fragment tektonicznego sytemu rozpadu Pangei. W okresie od późnej jury do wczesnej kredy rozwinął się ryft Karpat Zewnętrznych. Na przełomie kredy i paleocenu nastąpiło zamknięcie basenu pienińskiego pasa skałkowego. W okresie od eocenu do wczesnego miocenu terany Adri-Alkapy i Karpat Wewnętrznych kontynuowały ruch w kierunku północnym, a ich kolizja z płytą euroazjatycką doprowadziła do powstania pryzmy akrecyjnej Karpat Zewnętrznych i basenu przedgórskiego. Przy końcu miocenu środkowego uformowały się ostatecznie nasunięcia Karpat Zachodnich, podczas gdy w Karpatach Wschodnich ruchy te przetrwały do końca pliocenu.
    Źródło:
    Annales Societatis Geologorum Poloniae; 2000, 70, 2; 107-136
    0208-9068
    Pojawia się w:
    Annales Societatis Geologorum Poloniae
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-47 z 47

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