Sökning: "Wenlock"

Visar resultat 6 - 8 av 8 uppsatser innehållade ordet Wenlock.

  1. 6. The conodont genus Ctenognathodus in the Silurian of Gotland, Sweden

    Magister-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Caroline Strömberg; [1997]
    Nyckelord :Conodonta; Prioniodinida; Ctenognathodus; Ligonodina confluens; functional morphology; ontogeny; palaeoecology; phylogeny; Högklint Beds; Tofta Beds; Slite Beds; Klinteberg Beds; Hemse Beds; Hamra Beds; Sundre Beds; Wenlock; Ludlow; Silurian; Gotland; Sweden; Earth and Environmental Sciences;

    Sammanfattning : Seven taxa of the conodont genus Ctenognathodus (Fay, 1959) sensu Viira, 1982b in the Silurian of Gotland have been described and their occurrence mapped geographically, stratigraphically and related to facies. In addition to C. murchisoni (Pander, 1856) three new species were found; C. n. LÄS MER

  3. 7. Lower Silurian polychaetaspid and ramphoprionid polychaetes from Gotland : aspects on taxonomy and palaeoecology

    Magister-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Mats Eriksson; [1996]
    Nyckelord :Annelida; polychaetes; polychaetaspids; ramphoprionids; scolecodonts; palaeoecology; taxonomy; Lusklint; Lickershamn 2; Lower Visby Beds; Upper Visby Beds; Högklint Beds; Wenlock; Llandovery; Silurian; Gotland; Sweden; Earth and Environmental Sciences;

    Sammanfattning : The Silurian strata of Gotland yield a wide variety of polychaete jaws. The investigated polychaetes include the family Polychaetaspidae with the two genera Polychaetaspis and Kozlowskiprion, and the monotypic family Ramphoprionidae with the genus Ramphoprion. LÄS MER

  4. 8. Silurian conulariids from the Lower Visby Beds on Gotland

    Magister-uppsats, Lunds universitet/Geologiska institutionen

    Författare :Fredrik Jerre; [1988]
    Nyckelord :geography; geology; Conulariids; Ctenoconularia monile; Ctenoconularia sp. a; Ctenoconularia sp. b; Conularina sp. a; Conularia scalaris; Metaconularia aspersa; Metaconularia sp. a; lower Silurian; Lower Visby Beds; Gotland; Sweden; Earth and Environmental Sciences;

    Sammanfattning : The Silurian conulariid fauna in the Lower Visby Beds (uppermost Llandovery to lowermost Wenlock) on Gotland includes seven species: Ctenoconularia monile Lindström 1884, Ctenoconularia sp. a, Ctenoconularia sp. b, Conularina sp. a, Conularia scalaris Holm 1893, Metaconularia aspersa Lindström 1884 and Metaconularia sp. LÄS MER