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  • 1.
    Mergl, Michal
    et al.
    Uniersity of West Bohemia.
    Vaskaninova, Valeria
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.
    Zigaite, Zivile
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.
    Vertebrate Microremains From The Pragian, Emsian And Eifelian Of The Prague Basin (Czech Republic)2017In: Folia Musei rerum naturalium Bohemiae occidentalis. Geologica et Paleobiologica, E-ISSN 1805-286X, Vol. 51, no 1/2, p. 1-12Article in journal (Refereed)
    Abstract [en]

    The vertebrate faunas in limestone samples of the Early and Middle Devonian ages (Pragian, early Emsian, late Emsian, and latest Eifelian) which were collected from five localities in the Barrandian area, Bohemia, include scales, tesserae, bones, and teeth of acanthodians, placoderms, chondrichthyans, and sarcopterygians. Although the vertebrate remains are not abundant the assemblages are significant in being dominated by particular taxa. Apart from undetermined microremains the genera Cheiracanthoides, Laliacanthus, Nostolepis, and Tassiliodus were determined.

  • 2.
    Qvarnström, Martin
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.
    Niedzwiedzki, Grzegorz
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology.
    Tafforeau, Paul
    European Synchrotron Radiation Facility.
    Zigaite, Zivile
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology.
    Ahlberg, Per
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology.
    3D – visualization of vertebrate coprolites through phase contrast synchrotron imaging unravel new aspects of paleoecological relations2017In: 77th Annual Meeting of the Society of Vertebrate Paleontology, Abstract book, 2017, p. 181-Conference paper (Refereed)
  • 3.
    Qvarnström, Martin
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.
    Niedzwiedzki, Grzegorz
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.
    Tafforeau, Paul
    European Synchrotron Radiat Facil, 71 Ave Martyrs,CS40200, F-38043 Grenoble, France..
    Zigaite, Zivile
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.
    Ahlberg, Per
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.
    Synchrotron phase-contrast microtomography of coprolites generates novel palaeobiological data2017In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 7, article id 2723Article in journal (Refereed)
    Abstract [en]

    Coprolites (fossil faeces) reveal clues to ancient trophic relations, and contain inclusions representing organisms that are rarely preserved elsewhere. However, much information is lost by classical techniques of investigation, which cannot find and image the inclusions in an adequate manner. We demonstrate that propagation phase-contrast synchrotron microtomography (PPC-SR mu CT) permits high-quality virtual 3D-reconstruction of coprolite inclusions, exemplified by two coprolites from the Upper Triassic locality Krasiejow, Poland; one of the coprolites contains delicate beetle remains, and the other one a partly articulated fish and fragments of bivalves.

  • 4.
    Qvarnström, Martin
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.
    Niedzwiedzki, Grzegorz
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.
    Zigaite, Zivile
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.
    Vertebrate coprolites (fossil faeces): An underexplored Konservat-Lagerstatte2016In: Earth-Science Reviews, ISSN 0012-8252, E-ISSN 1872-6828, Vol. 162, p. 44-57Article, review/survey (Refereed)
    Abstract [en]

    Fossilized soft tissues of animals (e.g. muscles, hair and feathers) are valuable sources of palaeobiological information, but a poor preservation potential makes them undesirably scarce in the fossil record. The aim of this review is to summarize main findings, current progress and the analytical constraints of detecting fossilized soft tissues in coprolites from, mainly, freshwater and terrestrial carnivorous vertebrates. We conclude that soft-tissue inclusions in coprolites are sources of two important lines of information: the fossils can be put in a direct palaeoecological context, and characters of extinct taxa are more likely preserved in the phosphate-rich taphonomic microenvironment of coprolites than elsewhere. As a result, it is possible to unravel the deep-time origins of host-parasite relations, to understand ancient trophic food webs and detect new soft-tissue characters of different animal groups. Examples of the latter include muscle tissues from a tyrannosaurid prey, tapeworm eggs (including a developing embryo) in a Permian shark coprolite, as well as hair from multituberculates and, probably, from stem-mammals (Therapsids). Additionally, the use of coprolites in an archaeological context is briefly reviewed with focus on key aspects that may become implemented in studies of pre-Quaternary specimens as well. In summary, there is a wide range of information that can be extracted from coprolites, which has not yet been fully explored in palaeontological studies.

  • 5.
    Verniers, Jacques
    et al.
    University of Ghent.
    Maletz, Jörg
    Kriz, Jiri
    Zigaite, Zivile
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology.
    Paris, Florentin
    Schönlaub, Hans-Peter
    Wrona, Ryszard
    Silurian: The Geology of Central Europe2008In: Geological Society Special Publication, ISSN 0305-8719, E-ISSN 2041-4927, Vol. 1, p. 249-302Article in journal (Refereed)
  • 6.
    Zigaite Moro, Zivile
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.
    Whitehouse, Martin
    Naturhistoriska Riksmuseet, Stockholm.
    Joachimski, Michael M.
    University of Erlangen, Nuremberg.
    Les isotopes stables de l’oxygene dans des biominéraux dentaires des vertébrés actuels: différenciation au niveau des tissues et des espèces dans les dents de requins actuels2016Conference paper (Other academic)
  • 7.
    Zigaite, Zivile
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.
    Blieck, Alain
    University of Lille-1.
    Palaeobiogeography of Early Palaeozoic vertebrates2013In: Geological Society Memoir, ISSN 0435-4052, E-ISSN 2041-4722, Vol. 38, no 1, p. 449-460Article in journal (Refereed)
    Abstract [en]

    The oldest known Palaeozoic vertebrate record currently is Early Cambrian in age. The first taxa with mineralized exoskeletons are at least Ordovician in age, followed by a sporadic fossil record with Talimaa's Gap of c. 3 myr in the Rhuddanian (earliest Silurian). Ordovician and Silurian vertebrate faunas are dominated by 'agnathans'. Early Palaeozoic vertebrates occupied a wide range of environments: nearshore marine to restricted marine in the Ordovician, and on the marine epicontinental shelves of the Silurian. Silurian vertebrates are useful biostratigraphical indicators, as well as good markers of palaeocontinental margins. Two main palaeobiogeographical units are renamed for the Ordovician: a Gondwana Realm and a Laurentia-Siberia-Baltica Realm. Vertebrate fossil localities are more numerous in the Silurian; therefore a series of palaeobiogeographical provinces and realms are defined on Laurentia, Baltica, Avalonia, Siberia, South China and East Gondwana. More discoveries of Silurian vertebrate-bearing localities should certainly help to define additional provinces, in particular along the northern margins of Gondwana and in SE Asia.© The Geological Society of London 2013.

  • 8.
    Zigaite, Zivile
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.
    Blom, Henning
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology.
    Pérez-Huerta, Alberto
    University of Alabama.
    Goujet, Daniel
    Muséum national d'histoire naturelle.
    Vertebrate Microfossils as Tools in Stratigraphy: A Study of the LowerDevonian Andrée Land Group Spitsbergen2014In: Springer Geology, p. 1167-1171Article in journal (Refereed)
    Abstract [en]

    We have studied vertebrate microremains from the Lower to Middle Devonian of the Andrée Land Group, comprising the Wood Bay and Grey Hoek formations. We have defined two new thelodont assemblages, which represent different depositional phases during the late Early to early Middle Devonian formation of the Andrée Land Group. The definition of these two new thelodont assemblages allows us to precisely establish the relative ages of the Lower–Middle Devonian strata. Rare earth element (REE) abundances were measured in a number of thelodont and chondrichthyan microfossil dental tissue biominerals, using laser ablation inductively coupled plasma mass spectrometry (LA–ICP–MS). The evaluation of fossil preservation level was performed using semiquantitative spot-geochemistry analyses on finely polished thelodont scale thin-sections using Energy Dispersive X-ray Spectroscopy (EDS), and Electron Backscattering Diffractometry (EBSD) was applied to detect recrystallization. Stable oxygen isotope measurements (δ18O) of bulk biominerals were conducted in parallel, and showed lower heavy oxygen values in the fossil tissues with stronger visible alteration, such as those from the Grey Hoek Formation. Our results suggest that certain lithostratigraphic units of the Andrée Land Group must be regarded as contemporaneous lithofacies subjected to different sedimentary environments, rather than as separate stratigraphic members.

  • 9.
    Zigaite, Zivile
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology.
    Fadel, Alexander
    University of Lille-1.
    Jeffries, Teresa
    London Matural History Museum.
    Pérez-Huerta, Alberto
    University of Alabama.
    Rare earth elelments (REE) in Palaeozoic palaeoenvironmental reconstructions2016In: , 2016Conference paper (Refereed)
  • 10.
    Zigaite, Zivile
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.
    Fadel, Alexander
    University of Lille-1.
    Qvarnström, Martin
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.
    Pérez-Huerta, Alberto
    University of Alabama.
    Jeffries, Teresa
    London Natural History Museum.
    Early vertebrate microremains as proxies to palaeoenvironment: rare earth elements in dermal scale biominerals from the Silurian and Lower Devonian2016In: Thansactions of the Society of Micropalaeontology, 2016Conference paper (Other academic)
  • 11.
    Zigaite, Zivile
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.
    Fadel, Alexander
    University of Lille-1.
    Qvarnström, Martin
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology.
    Pérez-Huerta, Alberto
    University of Alabama.
    Jeffries, Teresa
    London Natural History Museum.
    Early vertebrate microremains as proxies to palaeornvironment :: rare earth elements ind ermal scale biominerals from the Silurian and Lower Devonian2018In: Résumés de la 26-eme RST 2018, 2018, Vol. 3, p. 301-301Conference paper (Refereed)
  • 12.
    Zigaite, Zivile
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.
    Fadel, Alexandre
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology. Univ Lille 1, CNRS UMR8217, Lab Geosyst, F-59655 Villeneuve Dascq, France.
    Perez-Huerta, Alberto
    Univ Alabama, Dept Geol Sci, 2018 Bevill Bldg, Tuscaloosa, AL 35487 USA.
    Jeffries, Teresa
    Dept Earth Sci, Nat Hist Museum, Cromwell Rd, London SW7 5BD, England.
    Goujet, Daniel
    Museum Natl Hist Nat, Dept Hist Terre, Lab Paleontol, UMR CNRS 7207, 57 Rue Cuvier, F-75231 Paris 5, France.
    Ahlberg, Per
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.
    Palaeoenvironments revealed by rare-earth element systematics in vertebrate bioapatite from the Lower Devonian of Svalbard2016In: Canadian journal of earth sciences (Print), ISSN 0008-4077, E-ISSN 1480-3313, Vol. 53, no 8, p. 788-794Article in journal (Refereed)
    Abstract [en]

    In situ rare-earth element (REE) compositions have been measured in early vertebrate microremains from the Lower Devonian basin of Andree Land (Svalbard), with the aim of obtaining information about their early depositional environment and potential reworking. Vertebrate microremains with different histology were used for the analyses, sourced from two different localities of marginal marine to freshwater sediments from geographically distant parts of the Grey Hoek Formation (Skamdalen and Tavlefjellet members). We selected thelodont and undescribed ? chondrichthyan scales, which allowed us to define potential taxonomic, histological, and taphonomic variables of the REE uptake. Results showed REE concentrations to be relatively uniform within the scales of each taxon, but apparent discrepancies were visible between the studied localities and separate taxa. The compilation of REE abundance patterns as well as REE ratios have revealed that thelodont and ? chondrichthyan originating from the same locality must have had different burial and early diagenetic histories. The shapes of the REE profiles, together with the presence and absence of the Eu and Ce anomalies, equally suggested different depositional and diagenetic environments for these two sympatric taxa resulting from either stratigraphical or long-distance reworking. The REE concentrations appear to have visible differences between separate dental tissues, particularly between enameloid and dentine of thelodonts, emphasizing the importance of in situ measurements in microfossil biomineral geochemistry.

  • 13.
    Zigaite, Zivile
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.
    Jeffries, Teresa
    London Natural History Museum.
    Qvarnström, Martin
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.
    Pérez-Huerta, Alberto
    University of Alabama.
    Distribution histologique des terres rares (REE) dans des microrestes de vertébrés du Paléozoique Inférieur2016Conference paper (Refereed)
  • 14.
    Zigaite, Zivile
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.
    Karatajute-Talimaa, Valentina
    Vilnius University.
    Joachimski, Michael M.
    University of Erlangen Nuremberg.
    Jeffries, Teresa
    London Natural History Museum.
    Silurian vertebrates from northern Mongolia:: diversity, ecology and environment2014Conference paper (Refereed)
  • 15.
    Zigaite, Zivile
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.
    Pérez-Huerta, Alberto
    University of Alabama.
    Fadel, Alexander
    University of Lille-1.
    Jeffries, Teresa
    London Natural History Museum.
    Blom, Henning
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology.
    Goujet, Daniel
    Muséum national d'histoire naturelle.
    Ahlberg, Per
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology.
    Andrée Land of Spitsbergen:: Devonian vertebrate diversity and palaeoenvironments2018Conference paper (Refereed)
  • 16.
    Zigaite, Zivile
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.
    Pérez-Huerta, Alberto
    University of Alabama.
    Jeffries, Teresa
    London Matural History Museum.
    Joachimski, Michael M.
    University of Erlangen Nuremberg.
    Blom, Henning
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology.
    Märss, Tiiu
    Tallinn University of Technology.
    Ahlberg, Per E.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology.
    Palaeoenvironmental signatures revealed from the Silurian dental apatite :: rare earth element and stable isotope record2015Conference paper (Refereed)
  • 17.
    Zigaite, Zivile
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology.
    Whitehouse, Martin
    Naturhistoriska Riksmuseet Stockholm.
    Joachimski, Michael M.
    University of Erlangen Nuremberg.
    Samsom, Ivan
    University of Birmingham.
    Stable oxygen isotopes of dental biomineral : differentiation at the intra- and inter-tissue level of modern shark teeth2015Conference paper (Refereed)
  • 18.
    Zigaite, Zivile
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.
    Whitehouse, Martin
    Naturhistoriska Riksmuseet Stockholm.
    Joachimski, Michael M.
    University of Erlangen Nuremberg.
    Sansom, Ivan
    University of Birmingham.
    δ18O as Seawater and Palaeoclimate Proxy: Results of in-situ SIMS in Modern Shark and ray Dental Apatite2017Conference paper (Refereed)
  • 19.
    Zigaite, Zivile
    et al.
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.
    Whitehouse, Martin
    Naturhistoriska Riksmuseet Stockholm.
    Joachimski, Michael M.
    University of Erlangen Nuremberg.
    Sansom, Ivan
    University of Birmingham.
    Ahlberg, Per Erik
    Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Evolution and Developmental Biology.
    Oxygen isotopes in modern and fossil ecosystems: model and case study overview2016Conference paper (Other academic)
1 - 19 of 19
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