Hostname: page-component-77c89778f8-vpsfw Total loading time: 0 Render date: 2024-07-20T11:29:51.625Z Has data issue: false hasContentIssue false
  • English
  • Français

New early Triassic Bryozoa (Trepostomata) from Spitsbergen, with some remarks on the stratigraphy of the investigated horizons

Published online by Cambridge University Press:  01 May 2009

Hans Arne Nakrem  and
Atle Mørk
Hans Arne Nakrem
Affiliation:
Palaeontological Museum, Sars gate 1, N-0562 Oslo 5, Norway
Atle Mørk
Affiliation:
Continental Shelf Institute(IKU), N-7034 Trondheim, Norway
Get access Rights & Permissions [Opens in a new window]

Abstract

New trepostomatous bryozoan species, Paralioclema winsnesi sp. nov., Paralioclema mariaholmensis sp. nov. and Paralioclema sp. cf. mariaholmensis are described from the Lower Triassic succession of Spitsbergen. The investigated bryozoan faunas are associated with coarse sandstones, calcareous siltstones and shelly limestones. The bryozoan colonies are mostly well preserved in situ, and show limited evidence of transportation. Some zoarial fragments show bioerosion. The conodont species Neogondolella elongata, Ellisonia triassica, Neospathodus dieneri and Neospathodus svalbardensis extracted from the investigated horizons are Dienerian–Smithian in age.

Type
Articles
Information
Geological Magazine , Volume 128 , Issue 2 , March 1991 , pp. 129 - 140
Copyright
Copyright © Cambridge University Press 1991

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Birkenmajer, K. 1977. Triassic sedimentary formations of the Hornsund area, Spitsbergen. Studia Geologica Polonica 51, 7–74.Google Scholar
Birkenmajer, K. & Trammer, J. 1975. Lower Triassic conodonts from Hornsund, south Spitsbergen. Acta Geologica Polonica 25, 299–307.Google Scholar
Boardman, R. S. 1984. Origin of the post-Triassic Stenolaemata (Bryozoa): a taxonomic oversight. Journal of Paleontology 58, 19–39.Google Scholar
Buchan, S. H., Challinor, A., Harland, W. B. & Parker, J. R. 1965. The Triassic stratigraphy of Svalbard. Norsk Polarinstitutt Skrifter 135, 94 pp.Google Scholar
Dagis, A. A. & Korchinskaya, M. V. 1989. Triasovye konodonty Svalbarda [Triassic conodonts of Svalbard]. In Verkhnii Paleozoi i Trias Sibiri [Upper Paleozoic and Triassic of Siberia] (ed. Dagis, A. S. and Dubatolov, V. N.), pp. 109–21. Trudy Akademiya Nauk SSSR Sibirskoe otdelenie Instituta Geologii i Geofiziki 732, 109–21 (in Russian).Google Scholar
Fritz, M. A. 1961. A new bryozoan genus from the Lake Hazen, northeastern Ellesmere Island. Proceedings of the Geological Association of Canada 13, 53–5.Google Scholar
Hatleberg, E. W. & Clark, D. L. 1984. Lower Triassic conodonts and biofacies interpretations: Nepal and Svalbard. Geologica et Palaeontologica 18, 101–25.Google Scholar
Lundgren, B. 1887. Anmärkningar om Permfossil fråan Spetsbergen. Kungliga Svenska vetenskapsakademiens handlingar 13, 26 pp.Google Scholar
Morozova, I. P. 1960 [1961]. Devonskie mshanki Minus-inskikh i Kuznteskoy Kotlovin [The Devonian Bryozoa of the Minusinsk and Kuznets Basins]. Trudy Paleonto-logicheskogo Instituta 86, 207 pp. (in Russian).Google Scholar
Morozova, I. P. 1969. O sistematicheskom sostave I rasprostranenii mshanok v triase [Systematic composition and range of Triassic bryozoans]. Paleonto-logicheskii Zhurnal 2, 49–57 (in Russian). English translation in Paleontological Journal 2, 191–9.Google Scholar
Müller, K. J. 1956. Triassic conodonts from Nevada. Journal of Paleontology 30, 818–30.Google Scholar
Mørk, A., Knarud, R. & Worsley, D. 1982. Depositional and diagenetic environments of the Triassic and Lower Jurassic succession of Svalbard. In Arctic Geology and Geophysics (ed. Embry, A. F. and Balkwill, H. R.), pp. 371–98. Canadian Society of Petroleum Geologists Memoir no. 8.Google Scholar
Mørk, A., Embry, A. F. & Weitschat, W. 1989. Triassic transgressive–regressive cycles in the Sverdrup Basin, Svalbard and the Barents Shelf. In Correlation in Hydrocarbon Exploration (ed. Collinson, J. D.), pp. 113–30. London: Graham and Trotman Ltd.Google Scholar
Nakrem, H. A. (In press) Distribution of bryozoans in the Permian succession of Svalbard (preliminary data). In Bryzoaires actuels et fossiles: Bryozoaliving and fossil (ed. Bigey, F. P. and d'Hondt, J.-L.). International Bryozoology Association 8th International Conference, Paris.Google Scholar
Pchelina, T. M. 1983. Novye materialy po stratigrafii mesozoya Arkhipelaga Shpitsbergen [New material on the Mesozoic stratigraphy of the Spitsbergen Archipelago]. In Geologiya Shpitsbergen (ed. Krasiščikov, A. A. and Basov, V. A.), pp. 121–30. Leningrad: NHGA Press (in Russian).Google Scholar
Sakagami, S. 1972. The Triassic Bryozoa from Kusaka, Sakawa Basin, Shikoku, Japan. Transactions and Proceedings of the Palaeontological Society of Japan N.S. 85, 275–9.Google Scholar
Schäfer, P. & Fois, E. 1987. Systematics and evolution of Triassic Bryozoa. Geologica et Palaeontologica 21, 173–225.Google Scholar
Sokolov, V. N. & Pchelina, T. M. 1967. O niznem i srednem triase Zemli Serkap o Zapadnom Spicbergene [On the Lower and Middle Triassic of Sorkapp Land in Vestspitsbergen]. Doklady Akademii nauk SSSR 176 (6), 1374–7 (in Russian).Google Scholar
Sweet, W. C. 1970 a. Permian and Triassic conodonts from Guryul Ravine, Vihi District, Kashmir The University of Kansas Paleontological Contribution Paper no. 49, 10 pp.Google Scholar
Sweet, W. C. 1970 6. Uppermost Permian and Lower Triassic conodonts of the Salt Range and Trans-Indus Ranges, West Pakistan. In Stratigraphic Boundary problems – Permian and Triassic of West Pakistan (ed. Kummel, B. and Teichert, C.), pp. 207–75. Kansas: University of Kansas Press.Google Scholar
Sweet, W. C., Mosher, L. C., Clark, D. L., Collinson, J. W., and Hasenmueller, W. A. 1971. Conodont bio-stratigraphy of the Triassic. In Symposium on Conodont Biostratigraphy (ed. Sweet, W. C. and Bergstrom, S. M.), Pp. 441–65. Geological Society of America Memoir no.127.Google Scholar
Trammer, J. 1978. Middle Triassic (Ladinian) conodonts and cephalopod arm hooks from Hornsund, Spits-bergen. Acta Geologica Polonica 28, 283–7.Google Scholar
Ulrich, E. O. 1882. American Paleozoic Bryozoa. Journal of Cincinnati Society of Natural History 5, 121–75; 232–57.Google Scholar
Ulrich, E. O. 1890. Paleozoic Bryozoa. Illinois Geological Survey 8, 283–688.Google Scholar
Weitschat, W. & Dagys, A. S. 1989. Triassic biostratigraphy of Svalbard and a comparison with NE-Siberia. Mitteilungen aus dem Geologisch-Palaontologischen Institut der Universitatä Hamburg 68, 179–213.Google Scholar
Worsley, D. & MØrk, A. 1978. The Triassic stratigraphy of southern Spitsbergen. Norsk Polarinstitutt Årbok 1977, 43–60.Google Scholar
Zhao-Xun, Hu 1984. Triassic Bryozoa from Xizang (Tibet) with reference to their biogeographical provincialism in the world. Acta Palaeontologica Sinica 23, 568–77.Google Scholar