Joergensenium rotatile n. gen., n. sp (Entactinaria, Radiolaria): its distribution in west Norwegian fjords

A new radiolarian genus and species, Joergensenium rotatile, is described. This species is restricted to recent sediments and plankton samples from the North Atlantic. Its recent distribution in the Norwegian Sea and West Norwegian fjords shows a strong affinity to the neritic province and reaches a...

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Bibliographic Details
Published in:Micropaleontology
Main Authors: Bjorklund, K.R., Dumitrica, P., Dolven, J.K., Swanberg, N.R.
Format: Article in Journal/Newspaper
Language:English
Published: 2007
Subjects:
Norwegian Sea
Pacific
Labrador Sea
Nordic Seas
North Atlantic
Online Access:https://serval.unil.ch/notice/serval:BIB_F4839B9578D1
https://doi.org/10.2113/gsmicropal.53.6.457
Description
Summary:A new radiolarian genus and species, Joergensenium rotatile, is described. This species is restricted to recent sediments and plankton samples from the North Atlantic. Its recent distribution in the Norwegian Sea and West Norwegian fjords shows a strong affinity to the neritic province and reaches almost 2% in Hryangerfjord. This species is only known from late Glacial and Holocene sediments in the Nordic seas. This genus shows, however, a patchy stratigraphic distribution with its first occurrence in the south-west Pacific within Palcocene, in the Middle to Late Miocene from the Norwegian Sea, and in the Labrador Sea at the base of biozone NN 21. Two fjords are compared for the general radiolarian distribution, but with special emphasis on the occurrence of J. rotatile in both sediment and plankton.

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