Calcareous dinoflagellate cysts from the Pleistocene (Marine Isotope Stage 31) of the Ross Sea, Antarctica
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 cy...
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ftawi:oai:epic.awi.de:25374 2023-05-15T13:46:51+02:00 Calcareous dinoflagellate cysts from the Pleistocene (Marine Isotope Stage 31) of the Ross Sea, Antarctica Streng, Michael Esper, Oliver Wollenburg, Jutta 2011-12 https://epic.awi.de/id/eprint/25374/ https://hdl.handle.net/10013/epic.39261 unknown Streng, M. , Esper, O. orcid:0000-0002-4342-3471 and Wollenburg, J. orcid:0000-0002-8169-8310 (2011) Calcareous dinoflagellate cysts from the Pleistocene (Marine Isotope Stage 31) of the Ross Sea, Antarctica , Antarctic Science, 23 (6), pp. 597-604 . doi:10.1017/S0954102011000605 <https://doi.org/10.1017/S0954102011000605> , hdl:10013/epic.39261 EPIC3Antarctic Science, 23(6), pp. 597-604 Article peerRev 2011 ftawi https://doi.org/10.1017/S0954102011000605 2021-12-24T15:35:22Z 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 Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Ross Sea Willems ENVELOPE(-63.283,-63.283,-64.950,-64.950) Antarctic Science 23 6 597 604 |
institution |
Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
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 |
spellingShingle |
Streng, Michael Esper, Oliver Wollenburg, Jutta Calcareous dinoflagellate cysts from the Pleistocene (Marine Isotope Stage 31) of the Ross Sea, Antarctica |
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 |
publishDate |
2011 |
url |
https://epic.awi.de/id/eprint/25374/ https://hdl.handle.net/10013/epic.39261 |
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 |
EPIC3Antarctic Science, 23(6), pp. 597-604 |
op_relation |
Streng, M. , Esper, O. orcid:0000-0002-4342-3471 and Wollenburg, J. orcid:0000-0002-8169-8310 (2011) Calcareous dinoflagellate cysts from the Pleistocene (Marine Isotope Stage 31) of the Ross Sea, Antarctica , Antarctic Science, 23 (6), pp. 597-604 . doi:10.1017/S0954102011000605 <https://doi.org/10.1017/S0954102011000605> , hdl:10013/epic.39261 |
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 |
_version_ |
1766245340515663872 |