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    Wyświetlanie 1-7 z 7
    Tytuł:
    First report of a Pliocene pike (Esocidae: Esox) in Transylvania, Romania
    Autorzy:
    Codrea, V. A.
    Trif, N.
    Toth, L.
    Tematy:
    fossil fish
    Early Pliocene
    Braşov Basin
    Transylvania
    Romania
    Pokaż więcej
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Powiązania:
    https://bibliotekanauki.pl/articles/2060449.pdf  Link otwiera się w nowym oknie
    Opis:
    Pliocene fish species based on skeleton remains and associated teeth ever reported from the inner Carpathian area in Romania in the Braşov Basin (Baraolt sub-basin), which refers to a pike (Esox sp.). The fish fossils illustrating a large-sized specimen originate from the South Racoş coal open pit (Racoşu de Sus, Covasna County), in the so-called “Formation with Limnocardium” (Dacian, Lower Pliocene). Comparisons with osteological material of recent pikes originating from various localities in Romania are presented. The associated mollusc fauna known from the formation that yielded the pike remains suggests the presence of a lake with a stratified water column in the Baraolt sub-basin.
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A framework of ichthyofaunal ecostratigraphy of the Oligocene-Early Miocene strata of the Polish Outer Carpathian basin
    Podstawy ekostratygrafii ichtiofaunistycznej osadów oligocenu-wczesnego miocenu basenu zewnętrznych Karpat Polskich
    Autorzy:
    Kotlarczyk, J.
    Jerzmańska, A.
    Świdnicka, E.
    Wiszniowska, T.
    Tematy:
    fossil fish collection
    Teleostei
    deep-sea sediments
    lithostratigraphy
    biostratigraphy
    fish ecoassemblages
    models of changes
    ichthyofaunal zonation
    ecostratigraphy
    Oligocene
    Early Miocene
    Outer Carpathians
    Polska
    Pokaż więcej
    Wydawca:
    Polskie Towarzystwo Geologiczne
    Powiązania:
    https://bibliotekanauki.pl/articles/191627.pdf  Link otwiera się w nowym oknie
    Opis:
    The paper presents the results of an analysis of ichthyofaunal variability throughout the section of the Menilite-Krosno Series (MKS) in the Outer Carpathians of Poland. The studied tanathocoenoses were formed at the bottom of a more than 2,000 m deep northern basin of the Tethys, being largely represented by the continental rise and bottoms of its narrow furrows, and - to a lesser degree - the continental slope and slopes of a submarine high. Lateral variability of statististically representative assemblages of tanathocoenoses hosted in thin, isochro- nous horizons is interpreted as a result of both local changes of ichthyocoenoses and the influence of post-mortem relocation of fishes that mainly dwelled the shelf and upper continental slope. Vertical variability, in turn, is considered as a resulting from changeable conditions of the ecological environment, the input and outflow of taxa whose evolution proceeded in the Indo-Pacific area, and the species extinction. Changeability of ichthyofauna within a ca. 16-m.y.-long interval made it possible to document and formally describe 9 zones and 4 subzones of ichthyofauna of ecostratigraphic character. These zones comprise index, representative and accompanying taxa that belong to different ecological groups. Conceptual models of the origin of ichthyofaunal assemblages of individual zones are presented. It is suggested that the origin of assemblage differentiation resulted from the appearance and disappearance of the oxygen minimum zone in the water column, global and local sea level changes, topography of the basin bottom, as well as final basin infilling by sediments of submarine fans. The described and preserved collection of fossil Carpathian fishes, housed at the Department of Palaeozoology of the University of Wrocław, requires further specialized palaeontological studies in order to reconstruct a more complete composition of the Oligocene-Early Miocene ichthyofauna.
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Acanthodian fish trace fossils from the Early Devonian of Spitsbergen
    Autorzy:
    Wisshak, M
    Volohonsky, E.
    Blomeier, D.
    Tematy:
    fish trail
    trace fossil
    Old Red Sandstone
    fossil
    Devonian
    Acanthodii
    Undichna
    Spitsbergen
    paleontology
    Svalbard
    Pokaż więcej
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Powiązania:
    https://bibliotekanauki.pl/articles/21739.pdf  Link otwiera się w nowym oknie
    Opis:
    We describe and interpret Undichna septemsulcata isp. nov., from the fluvial Old Red Sandstone deposits of the Early Devonian Wood Bay Formation, of Northern Spitsbergen (Svalbard). Its delicate scratch pattern, comprising one unpaired median groove and three pairs of lateral grooves, all with a regular in−phase sinusoidal wave pattern of equal wavelength, allow the reconstruction of the number, position and relative spacing of the fins. The comparatively high−amplitude median groove is attributed to the main propelling action of the tail or caudal fin, the inner pair of the lateral grooves to the action of the pelvic fins, and the low−amplitude outer set of duplicate grooves to bifurcated pectoral fins, respectively. The in−phase geometric pattern is explained by a distance between the unpaired fin (caudal or anal fin) to the pectoral fins corresponding to one wavelength and a position of the pelvic fins half way in between. The direction of movement and the mode of locomotion of the trace maker (a carangiform to ostraciiform type) are deduced. This analysis is leading to an acanthodian (possibly Diplacanthus) as the most probable trace maker. By being Pragian or early Emsian (Early Devonian) in age, according to vertebrate and palynomorph biostratigraphy, these specimens are among the world’s oldest trace fossils made by a vertebrate.
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Description of a new stromateoid fish from the Miocene of St. Eugene, Algeria
    Autorzy:
    Carnevale, G.
    Bannikov, A.F.
    Tematy:
    Algeria
    Ariommatidae
    Messinian
    Miocene
    Perciformes
    sedimentary setting
    Teleostei
    Upper Miocene
    axial skeleton
    fish
    fossil
    paleontology
    stromateoid fish
    systematics
    Pokaż więcej
    Wydawca:
    Polska Akademia Nauk. Instytut Paleobiologii PAN
    Powiązania:
    https://bibliotekanauki.pl/articles/20914.pdf  Link otwiera się w nowym oknie
    Opis:
    A single specimen of the axial skeleton of an elongate fossil stromateoid fish, collected from the Upper Miocene (Messinian) St. Eugène locality of north−western Algeria, is identified as a new species Ariomma geslini sp. nov. of the family Ariommatidae. It is based on a unique combination of features, including morphology and arrangement of pleural ribs, structure and orientation of anterior portion of the anal fin, unique sequential arrangement of anal−fin pterygiophores in relation to the haemal spines, and presence of large cycloid scales and meristics. The morphology and orientation of the first anal−fin pterygiophore indicate that A. geslini sp. nov. is probably related to the amphi−Atlantic species A. bondi and A. melanum. The analysis of the fossil record of the Stromateoidei suggests that the ariommatids were already in existence at least as early as the Eocene.
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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