Sökning: "spårfossil"

Hittade 5 uppsatser innehållade ordet spårfossil.

  1. 1. Distribution of Sabellidites (Annelida?) in the Basal Cambrian of the Digermulen Peninsula, Arctic Norway

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Frida Hybertsen; [2017]
    Nyckelord :Ediacaran; Cambrian; Sabellidites; biostratigraphy; Digermulen Peninsula; Arctic Norway; Ediacara; kambrium; Sabellidites; biostratigrafi; Digermulen;

    Sammanfattning : The Digermulen Peninsula, Arctic Norway, offers a unique section of late Ediacaran to Cambrian sediments in an almost complete succession within the Vestertana Group. The proposed annelidan fossil Sabellidites cambriensis is found here, within the Lower Breidvika Member and is believed to exist also in the underlying Manndrapselva Member of the Stáhpogieddi Formation. LÄS MER

  3. 2. De mellankambriska oelandicuslagren på Öland : stratigrafi och faciestyper

    Kandidat-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Johan Malmgren; [2016]
    Nyckelord :Öland; Sverige; kambrium; trilobiter; Acadoparadoxides oelandicus; Ellipsocephalus polytomus; Earth and Environmental Sciences;

    Sammanfattning : The thesis deals with a drill core retrieved from northern Öland, Sweden, in 2010. The length of the core is c. 107 m and comprises an Ordovician and Cambrian succession. The middle Cambrian primarily consists of fossiliferous mudstone with thin siltstone beds. LÄS MER

  4. 3. Palaeoenvironments of the Earliest (Middle Devonian) Tetrapod Trackways from the Holy Cross Mountains, Poland; Locomotion in a Terrestrial Setting?

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Martin Qvarnström; [2015]
    Nyckelord :Tetrapods; palaeoenvironment; trackways; paleosols; microfacies; trace fossils; fin-limb transition; Holy Cross Mountains.;

    Sammanfattning : The palaeoenvironment from which early tetrapods emerged is crucial to comprehend in order to understand the mechanisms that drove and allowed the terrestrialization of vertebrates; one of the most important evolutionary ‘events’ in the history of animals. Nevertheless, much of the terrestrialization is shrouded in obscurity, inter alia, due to scarcity of early tetrapods in the fossil record. LÄS MER

  5. 4. Krossbergskvalitet och petrografi i den kambriska Hardebergasandstenen i Skåne

    Magister-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Cecilia Jansson; [2005]
    Nyckelord :sandstone; petrography; technical properties; strength; Cambrian; Hardeberga; Scania; Sweden; sandsten; krossberg; petrografi; hållfasthet; bergkvalitet; kambrium; Skåne; Sverige; Earth and Environmental Sciences;

    Sammanfattning : The Lower Cambrian Hardeberga Sandstone Formation of Scania, southern Sweden, consists of a basal arkosic sandstone unit, overlain by three vertically stacked, shallowing-upward sequences. These three sequences consist predominantly of light grey or whitish, quartz-arenitic sandstones deposited in shallow marine environments. LÄS MER

  7. 5. Trace fossils from the Permian of western Dronning Maud Land, Antarctica

    Magister-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Jenny Sälgeback; [1999]
    Nyckelord :trace fossils; Permian; Antarctica; non-marine; Scoyenia ichnofacies; Aulichnites; Cochlichnus; Helminthopsis; Lockeia; Palaeophycus; Skolithos; Earth and Environmental Sciences;

    Sammanfattning : Non-marine trace fossils from the Permian of Antarctica are systematically described and possible depositional environments are discussed. The studied material derives from sedimentary sequences consisting mainly of sandstone and shale at Vestfjella and Kirwanveggen, western Dronning Maud Land. LÄS MER