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Cristin-resultat-ID:
440330
Sist endret:
21. januar 2015, 15:27
Resultat
Vitenskapelig artikkel
2001
Permian-Triassic scolecodonts and conodonts from the Svalis Dome, central Barents Sea, Norway
Hans Arne Nakrem
Hubert Szaniawski
og
Atle Mørk
Tidsskrift
Tidsskrift
Acta Palaeontologica Polonica
ISSN 0567-7920
e-ISSN 1732-2421
NVI-nivå 1
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Om resultatet
Om resultatet
Vitenskapelig artikkel
Publiseringsår: 2001
Volum: 46
Hefte: 1
Sider: 67 - 84
Open Access
Importkilder
Importkilder
ForskDok-ID: 57541
Beskrivelse
Beskrivelse
Engelsk
Tittel
Permian-Triassic scolecodonts and conodonts from the Svalis Dome, central Barents Sea, Norway
Sammendrag
Scolecodonts and conodonts are described from five samples of three cores from the Svalis Dome, central Barents Sea. The conodont species Mesogondolella rosenkrantzi and Neospathodus svalbardensis confirm latest Permian (Dzulfian) and earliest Triassic (Dienerian) ages for the investigated intervals. Correlation with adjacent conodont distribution indicates a shorter depositional gap in the late Permian than is evident on Svalbard. The conodont elements show little thermal alteration with C.A.I. values between 1.0 and 1.5 indicating a maximum burial temperature of 50-90ºC. The scolecodonts described herein have important evolutionary and distribution implications for polychaetes: the order Eunicida shows a richer diversification in the Permian than previously known; the family Paulinitidae survived at least until the Late Permian; the family Hartmaniellidae diversified already in the late Palaeozoic; some forms are considered as representatives of unknown species and genera; the Order Phyllodocida originated already in the latest Palaeozoic
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Bidragsytere
Bidragsytere
Hans Arne Nakrem
Forfatter
ved Naturhistorisk museum, Paleontologisk museum ved Universitetet i Oslo
Hubert Szaniawski
Forfatter
Atle Mørk
Forfatter
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