Calcareous dinoflagellate cysts from the Pleistocene (Marine Isotope Stage 31) of the Ross Sea, Antarctica
Abstract Following a report of supposed fragments of calcareous dinoflagellate cysts from a Pleistocene drill core (CRP-1) recovered in the Ross Sea, Antarctica, sediments of the same core were re-investigated for their microfossil content. Besides common foraminifera and other microfossils, rare co...
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crcambridgeupr:10.1017/s0954102011000605 2024-05-12T07:55:37+00:00 Calcareous dinoflagellate cysts from the Pleistocene (Marine Isotope Stage 31) of the Ross Sea, Antarctica Streng, Michael Esper, Oliver Wollenburg, Jutta 2011 http://dx.doi.org/10.1017/s0954102011000605 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102011000605 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 23, issue 6, page 597-604 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2011 crcambridgeupr https://doi.org/10.1017/s0954102011000605 2024-04-18T06:54:20Z Abstract Following a report of supposed fragments of calcareous dinoflagellate cysts from a Pleistocene drill core (CRP-1) recovered in the Ross Sea, Antarctica, sediments of the same core were re-investigated for their microfossil content. Besides common foraminifera and other microfossils, rare complete cysts of calcareous dinoflagellates were found. All cysts belong to the species Caracomia arctica (Gilbert & Clark, 1983) Streng, Hildebrand-Habel & Willems, 2002, a taxon characteristic of late Neogene high latitude, coldwater environments. Two morphotypes can be distinguished, C. arctica f. arctica and C. arctica f. rossensis , of which the latter is described as a new form. The presence of C. arctica strengthens diatom-based palaeoenvironmental reconstructions of periodical sea ice-free conditions at the time of deposition. Accordingly, cysts of C. arctica are interpreted as resting cysts that allow survival during harsh intervals of the high latitude environment. Previously reported calcareous dinoflagellates cyst fragments from these sediments are re-interpreted as test fragments of bilamellar foraminifera, which represent the most common group of foraminifers in the sediments. Article in Journal/Newspaper Antarc* Antarctic Science Antarctica Ross Sea Sea ice Cambridge University Press Ross Sea Willems ENVELOPE(-63.283,-63.283,-64.950,-64.950) Antarctic Science 23 6 597 604 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Streng, Michael Esper, Oliver Wollenburg, Jutta Calcareous dinoflagellate cysts from the Pleistocene (Marine Isotope Stage 31) of the Ross Sea, Antarctica |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract Following a report of supposed fragments of calcareous dinoflagellate cysts from a Pleistocene drill core (CRP-1) recovered in the Ross Sea, Antarctica, sediments of the same core were re-investigated for their microfossil content. Besides common foraminifera and other microfossils, rare complete cysts of calcareous dinoflagellates were found. All cysts belong to the species Caracomia arctica (Gilbert & Clark, 1983) Streng, Hildebrand-Habel & Willems, 2002, a taxon characteristic of late Neogene high latitude, coldwater environments. Two morphotypes can be distinguished, C. arctica f. arctica and C. arctica f. rossensis , of which the latter is described as a new form. The presence of C. arctica strengthens diatom-based palaeoenvironmental reconstructions of periodical sea ice-free conditions at the time of deposition. Accordingly, cysts of C. arctica are interpreted as resting cysts that allow survival during harsh intervals of the high latitude environment. Previously reported calcareous dinoflagellates cyst fragments from these sediments are re-interpreted as test fragments of bilamellar foraminifera, which represent the most common group of foraminifers in the sediments. |
format |
Article in Journal/Newspaper |
author |
Streng, Michael Esper, Oliver Wollenburg, Jutta |
author_facet |
Streng, Michael Esper, Oliver Wollenburg, Jutta |
author_sort |
Streng, Michael |
title |
Calcareous dinoflagellate cysts from the Pleistocene (Marine Isotope Stage 31) of the Ross Sea, Antarctica |
title_short |
Calcareous dinoflagellate cysts from the Pleistocene (Marine Isotope Stage 31) of the Ross Sea, Antarctica |
title_full |
Calcareous dinoflagellate cysts from the Pleistocene (Marine Isotope Stage 31) of the Ross Sea, Antarctica |
title_fullStr |
Calcareous dinoflagellate cysts from the Pleistocene (Marine Isotope Stage 31) of the Ross Sea, Antarctica |
title_full_unstemmed |
Calcareous dinoflagellate cysts from the Pleistocene (Marine Isotope Stage 31) of the Ross Sea, Antarctica |
title_sort |
calcareous dinoflagellate cysts from the pleistocene (marine isotope stage 31) of the ross sea, antarctica |
publisher |
Cambridge University Press (CUP) |
publishDate |
2011 |
url |
http://dx.doi.org/10.1017/s0954102011000605 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102011000605 |
long_lat |
ENVELOPE(-63.283,-63.283,-64.950,-64.950) |
geographic |
Ross Sea Willems |
geographic_facet |
Ross Sea Willems |
genre |
Antarc* Antarctic Science Antarctica Ross Sea Sea ice |
genre_facet |
Antarc* Antarctic Science Antarctica Ross Sea Sea ice |
op_source |
Antarctic Science volume 23, issue 6, page 597-604 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102011000605 |
container_title |
Antarctic Science |
container_volume |
23 |
container_issue |
6 |
container_start_page |
597 |
op_container_end_page |
604 |
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1798835431990624256 |