Distribution Patterns and Morphology of Islandiella norcrossi (Cushman) in the Upper Quaternary Deposits of the Laptev Sea.

Ovsepyan, Ya. S. and Taldenkova, E. E. (2019) Distribution Patterns and Morphology of Islandiella norcrossi (Cushman) in the Upper Quaternary Deposits of the Laptev Sea. Paleontological Journal, 53 (1). pp. 10-19. DOI 10.1134/S0031030119010064.

Full text not available from this repository.

Supplementary data:

Abstract

The ecology and taxonomy of Islandiella norcrossi (Cushman, 1933), a typical representative of the Arctic calcareous benthic foraminifers, are analyzed based on microfossils from the Late Pleistocene-Holocene deposits of the Laptev Sea. This species is distributed on the shelf and continental slope of the Arctic
seas, and indicates normal marine conditions with a seasonal ice cover and cold Arctic water masses. The species is also associated with a high seasonal productivity in sea-ice marginal zone. Tests are abundant in the Laptev Sea sediments, and show some variability in the size and shape of chambers, which was possibly caused by harsh environmental conditions of the Arctic (limited period of growth and reproduction); aberrant forms with an additional aperture being also present. The population contains tests of macrospherical and microspherical generations, as well as juveniles.

Document Type: Article
Keywords: distribution patterns, morphology of Islandiella norcrossi, upper Quaternary deposits, Laptev Sea
Refereed: Yes
Open Access Journal?: No
DOI etc.: 10.1134/S0031030119010064
ISSN: 0031-0301
Projects: CATS
Date Deposited: 24 Mar 2020 14:16
Last Modified: 24 Mar 2020 14:16
URI: http://oceanrep.geomar.de/id/eprint/49216

Actions (login required)

View Item View Item