Plectoeratidus subarcticus, n.gen., n.sp., a new agglutinated foraminifer from the Upper Cretaceous of the western Barents Sea

• Autorzy: Kaminski M. A. , Setoyama E. , Tyszka J.
• Języki publikacji: EN

Abstrakty

EN

We describe the new foraminiferal genus and species Plectoeratidus subarcticus n.gen. n.sp., from the Upper Cretaceous deep-water deposits of the Kviting and Kveite formations in the western Barents Sea. The genus is characterised by its planispiral-biserial-uniserial chamber arrangement, terminal aperture and lateral compre- ssion. The biometric analysis of test ontogenesis has been applied to document its dimorphism attributed to megalospheric and microspheric generations. This taxon may represent an evolutionary transition between the Cretaceous genera Spiroplectammina or Bolivinopsis and the Cenozoic genus Eratidus. The taxon appears to be endemic to the flysch-type agglutinated foraminiferal assemblages in the Norwegian Sea area.

Słowa kluczowe

EN

foraminifera; Late Cretaceous; new genus; new species; biometrics

• Wydawca: Polskie Towarzystwo Geologiczne
• Czasopismo: Annales Societatis Geologorum Poloniae
• Rocznik: 2009
• Tom: Vol. 79, No 2
• Strony: 141--146
• Opis fizyczny: bibliogr. 11 poz., rys., wykr.

Twórcy

autor

Kaminski M. A.

autor

Setoyama E.

autor

Tyszka J.

• Department of Earth Sciences, University College London, Gower Street, London WC1E 6BT, U.K.,

Bibliografia

• Brady, H. B., 1881. On some of the reticularian Rhizopoda of the Challenger Expedition. Part III. 1. Classification. 2. Further notes on new species. 3. Note on Biloculina mud. Quarterly Journal of Microscopical Science, new ser. 21: 31-71.
• Charnock, M. A. & Jones, R. W., 1990. Agglutinated foraminifera from the Paleogene of the North Sea. In: Hemleben, C, Kaminski, M. A., Kuhnt, W., & Scott, D. B. (eds), Paleoecology, Biostratigraphy, Paleoceanography and Twconomy of Agglutinated Foraminifera, NATO ASI Series, C327, Kluwer Academic Publishers, pp. 139 244.
• Geroch, S. & Nowak, W., 1984. Proposal of zonation for the late Tithonian late Eocene, based upon arenaceous foraminifera from the outer Carpathians, Poland. In: Oertli, H. (Ed.) Benthos '83; 2 nd International Symposium on Benthic Foraminifera Pau (France), April 11-15,1983. Elf Aąuitaine, ESSO REP and TOTAL CFP, Pau & Bourdeaux, pp. 225-239.
• Kaminski, M. A. & Gradstein, F. M., 2005. Cenozoic cosmopolitan deepwater agglutinated foraminifera. Grzybowski Foundation Special Publication, 10: 547 pp.
• Loeblich, A. R. Jr. & Tappan, H., 1950. Foraminifera from the type Kiowa Shale, Lower Cretaceous, of Kansas. Kansas, Univ. Paleontological Contributions, Lawrence, Kansas, p. 8.
• Nagy, J., Kaminski, M. A., Johnsen, K. & Mitlehner, A., 1997. Benthic foraminiferal and dinoflagellate cyst stratigraphy and paleoenvironments of the Palaeogene Torsk Formation: A reference section for the western Barents Sea. In: Hass, C. & Kaminski, M. A. (eds), Contributions to the Micropalaeontology & Paleoceanography of the northern North Atlantic. Grzybowski Foundation Special Publication, 5: 15 38.
• Nagy, I, Kaminski, M. A., Kuhnt, W. & Andersen, M., 2000. Foraminifera reflecting deltaic to bathyal facies in high latitude Paleogene strata. In: Hart, M. B., Kaminski, M. A. & Smart, C. W. (eds), Proceedings of the Fifth International Workshop on Agglutinated Foraminifera. Grzybowski Foundation Special Publication, 7: 333 361.
• Nagy, I, Kaminski, M. A., Gradstein, F. M. & Johnson, K., 2004. Quantitative foraminiferal and palynomorph biostratigraphy of the Paleogene in the southwestern Barents Sea. In: Bubik, M., & Kaminski, M. A., (eds), Proceedings of the Sixth International Workshop on Agglutinated Foraminifera. Grzybowski Foundation Special Publication, 8: 359 379.
• Setoyama, E., Kaminski, M. A., Tyszka, J., Cetean, C. & Bubik, M., 2008. Carpathian flysch-type foraminifera in Upper Cretaceous sediments ofthe Barents Sea. First Polish Geological Congress, Abstracts. Polish Geological Society, p. 105.
• Tyszka, 1, 2004. Analysis of test ontogenesis (ATO) in smali foraminifera: implications from Pseudonodosinella. In: Bubik M. & Kaminski M. A. (eds), Proceedings of the Sixt International Workshop on Agglutinated Foraminifera. Grzybowski Foundation Special Publication, 8: 471-483.
• Worsley, D., Johansen, R. & Kristensen, S. E., 1988. The Mesozoic and Cenozoic succession of Tromsøflaket. In: Dalland, A., Worsley, D., & Ofstad, K. (eds), A lithostratigraphic scheme for the Mesozoic and Cenozoic succession offshore mid- and northern Norway. NPD Bulletin, 4: 42-61.