First record of Palaeostomocystis subtilitheca in Holocene marine sediments from the Beagle Channel, southern Tierra del Fuego, Argentina

This study documents the occurrence of Palaeostomocystis subtilitheca in Holocene sediments from the Beagle Channel area, southern Argentina, and represents the first record of this acritarch in high latitudes of the Southern Hemisphere. P. subtilitheca is considered as an indicator for polar to sub...

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Bibliographic Details
Published inReview of palaeobotany and palynology Vol. 221; pp. 52 - 58
Main Author Candel, María Soledad
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.10.2015
Subjects
Acritarch
Beagle Channel
Holocene
Marine environment
Southern Hemisphere
Marine environment
Acritarch
Southern Hemisphere
Holocene
Beagle Channel
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Summary:This study documents the occurrence of Palaeostomocystis subtilitheca in Holocene sediments from the Beagle Channel area, southern Argentina, and represents the first record of this acritarch in high latitudes of the Southern Hemisphere. P. subtilitheca is considered as an indicator for polar to subpolar environments with high planktonic productivity and nutrient-rich waters and can probably be associated with low-salinity stratified waters. The Beagle Channel presents environmental characteristics similar to those reported by other authors in Central West Greenland and the Faroe Islands, characterized by high concentrations of nutrients in the surface waters. The Beagle Channel constitutes a favourable environment for the development of this species in subpolar regions of the Southern Hemisphere. •New record of Palaeostomocystis subtilitheca in the Southern Hemisphere.•This species is reported from Holocene marine sediments from the Beagle Channel.•Environmental conditions characterized by cold and nutrient-rich waters.
ISSN:0034-6667
1879-0615
DOI:10.1016/j.revpalbo.2015.06.001