A latest Cretaceous to earliest Paleogene dinoflagellate cyst zonation of Antarctica, and implications for phytoprovincialism in the high southern latitudes
The thickest uppermost Cretaceous to lowermost Paleogene (Maastrichtian to Danian) sedimentary succession in the world is exposed on southern Seymour Island (65° South) in the James Ross Basin, Antarctic Peninsula. This fossiliferous shallow marine sequence, which spans the Cretaceous–Paleogene boun...
Published in: | Review of Palaeobotany and Palynology |
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Online Access: | http://nora.nerc.ac.uk/id/eprint/17225/ https://nora.nerc.ac.uk/id/eprint/17225/1/Text-Bowman-et-al-rev-all_track_changes_accepted.pdf http://www.sciencedirect.com/science/journal/00346667 |
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ftnerc:oai:nora.nerc.ac.uk:17225 2023-05-15T13:45:11+02:00 A latest Cretaceous to earliest Paleogene dinoflagellate cyst zonation of Antarctica, and implications for phytoprovincialism in the high southern latitudes Bowman, Vanessa C. Francis, Jane E. Riding, James B. Hunter, Stephen J. Haywood, Alan M. 2012 text http://nora.nerc.ac.uk/id/eprint/17225/ https://nora.nerc.ac.uk/id/eprint/17225/1/Text-Bowman-et-al-rev-all_track_changes_accepted.pdf http://www.sciencedirect.com/science/journal/00346667 en eng Elsevier https://nora.nerc.ac.uk/id/eprint/17225/1/Text-Bowman-et-al-rev-all_track_changes_accepted.pdf Bowman, Vanessa C.; Francis, Jane E.; Riding, James B. orcid:0000-0002-5529-8989 Hunter, Stephen J.; Haywood, Alan M. 2012 A latest Cretaceous to earliest Paleogene dinoflagellate cyst zonation of Antarctica, and implications for phytoprovincialism in the high southern latitudes. Review of Palaeobotany and Palynology, 171. 40-56. https://doi.org/10.1016/j.revpalbo.2011.11.004 <https://doi.org/10.1016/j.revpalbo.2011.11.004> Publication - Article PeerReviewed 2012 ftnerc https://doi.org/10.1016/j.revpalbo.2011.11.004 2023-02-04T19:30:57Z The thickest uppermost Cretaceous to lowermost Paleogene (Maastrichtian to Danian) sedimentary succession in the world is exposed on southern Seymour Island (65° South) in the James Ross Basin, Antarctic Peninsula. This fossiliferous shallow marine sequence, which spans the Cretaceous–Paleogene boundary, has allowed a high-resolution analysis of well-preserved marine palynomorphs. Previous correlation of Cretaceous–Paleogene marine palynomorph assemblages in the south polar region relied on dinoflagellate cyst biozonations from New Zealand and southern Australia. The age model of the southern Seymour Island succession is refined and placed within the stratigraphical context of the mid to high southern palaeolatitudes. Quantitative palynological analysis of a new 1102 m continuous stratigraphical section comprising the uppermost Snow Hill Island Formation and the López de Bertodano Formation (Marambio Group) across southern Seymour Island was undertaken. We propose the first formal late Maastrichtian to early Danian dinoflagellate cyst zonation scheme for the Antarctic based on this exceptional succession. Two new late Maastrichtian zones, including three subzones, and one new early Danian zone are defined. The oldest beds correlate well with the late Maastrichtian of New Zealand. In a wider context, a new South Polar Province based on Maastrichtian to Danian dinoflagellate cysts is proposed, which excludes most southern South American marine palynofloras. This interpretation is supported by models of ocean currents around Antarctica and implies an unrestricted oceanic connection across Antarctica between southern South America and the Tasman Sea. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Seymour Island Snow Hill Island Natural Environment Research Council: NERC Open Research Archive Antarctic Antarctic Peninsula Hill Island ENVELOPE(76.070,76.070,-69.395,-69.395) Marambio ENVELOPE(-56.750,-56.750,-64.283,-64.283) New Zealand Seymour ENVELOPE(-56.767,-56.767,-64.283,-64.283) Seymour Island ENVELOPE(-56.750,-56.750,-64.283,-64.283) Snow Hill ENVELOPE(-57.183,-57.183,-64.466,-64.466) Snow Hill Island ENVELOPE(-57.183,-57.183,-64.466,-64.466) The Antarctic Review of Palaeobotany and Palynology 171 40 56 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
description |
The thickest uppermost Cretaceous to lowermost Paleogene (Maastrichtian to Danian) sedimentary succession in the world is exposed on southern Seymour Island (65° South) in the James Ross Basin, Antarctic Peninsula. This fossiliferous shallow marine sequence, which spans the Cretaceous–Paleogene boundary, has allowed a high-resolution analysis of well-preserved marine palynomorphs. Previous correlation of Cretaceous–Paleogene marine palynomorph assemblages in the south polar region relied on dinoflagellate cyst biozonations from New Zealand and southern Australia. The age model of the southern Seymour Island succession is refined and placed within the stratigraphical context of the mid to high southern palaeolatitudes. Quantitative palynological analysis of a new 1102 m continuous stratigraphical section comprising the uppermost Snow Hill Island Formation and the López de Bertodano Formation (Marambio Group) across southern Seymour Island was undertaken. We propose the first formal late Maastrichtian to early Danian dinoflagellate cyst zonation scheme for the Antarctic based on this exceptional succession. Two new late Maastrichtian zones, including three subzones, and one new early Danian zone are defined. The oldest beds correlate well with the late Maastrichtian of New Zealand. In a wider context, a new South Polar Province based on Maastrichtian to Danian dinoflagellate cysts is proposed, which excludes most southern South American marine palynofloras. This interpretation is supported by models of ocean currents around Antarctica and implies an unrestricted oceanic connection across Antarctica between southern South America and the Tasman Sea. |
format |
Article in Journal/Newspaper |
author |
Bowman, Vanessa C. Francis, Jane E. Riding, James B. Hunter, Stephen J. Haywood, Alan M. |
spellingShingle |
Bowman, Vanessa C. Francis, Jane E. Riding, James B. Hunter, Stephen J. Haywood, Alan M. A latest Cretaceous to earliest Paleogene dinoflagellate cyst zonation of Antarctica, and implications for phytoprovincialism in the high southern latitudes |
author_facet |
Bowman, Vanessa C. Francis, Jane E. Riding, James B. Hunter, Stephen J. Haywood, Alan M. |
author_sort |
Bowman, Vanessa C. |
title |
A latest Cretaceous to earliest Paleogene dinoflagellate cyst zonation of Antarctica, and implications for phytoprovincialism in the high southern latitudes |
title_short |
A latest Cretaceous to earliest Paleogene dinoflagellate cyst zonation of Antarctica, and implications for phytoprovincialism in the high southern latitudes |
title_full |
A latest Cretaceous to earliest Paleogene dinoflagellate cyst zonation of Antarctica, and implications for phytoprovincialism in the high southern latitudes |
title_fullStr |
A latest Cretaceous to earliest Paleogene dinoflagellate cyst zonation of Antarctica, and implications for phytoprovincialism in the high southern latitudes |
title_full_unstemmed |
A latest Cretaceous to earliest Paleogene dinoflagellate cyst zonation of Antarctica, and implications for phytoprovincialism in the high southern latitudes |
title_sort |
latest cretaceous to earliest paleogene dinoflagellate cyst zonation of antarctica, and implications for phytoprovincialism in the high southern latitudes |
publisher |
Elsevier |
publishDate |
2012 |
url |
http://nora.nerc.ac.uk/id/eprint/17225/ https://nora.nerc.ac.uk/id/eprint/17225/1/Text-Bowman-et-al-rev-all_track_changes_accepted.pdf http://www.sciencedirect.com/science/journal/00346667 |
long_lat |
ENVELOPE(76.070,76.070,-69.395,-69.395) ENVELOPE(-56.750,-56.750,-64.283,-64.283) ENVELOPE(-56.767,-56.767,-64.283,-64.283) ENVELOPE(-56.750,-56.750,-64.283,-64.283) ENVELOPE(-57.183,-57.183,-64.466,-64.466) ENVELOPE(-57.183,-57.183,-64.466,-64.466) |
geographic |
Antarctic Antarctic Peninsula Hill Island Marambio New Zealand Seymour Seymour Island Snow Hill Snow Hill Island The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Hill Island Marambio New Zealand Seymour Seymour Island Snow Hill Snow Hill Island The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Seymour Island Snow Hill Island |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Seymour Island Snow Hill Island |
op_relation |
https://nora.nerc.ac.uk/id/eprint/17225/1/Text-Bowman-et-al-rev-all_track_changes_accepted.pdf Bowman, Vanessa C.; Francis, Jane E.; Riding, James B. orcid:0000-0002-5529-8989 Hunter, Stephen J.; Haywood, Alan M. 2012 A latest Cretaceous to earliest Paleogene dinoflagellate cyst zonation of Antarctica, and implications for phytoprovincialism in the high southern latitudes. Review of Palaeobotany and Palynology, 171. 40-56. https://doi.org/10.1016/j.revpalbo.2011.11.004 <https://doi.org/10.1016/j.revpalbo.2011.11.004> |
op_doi |
https://doi.org/10.1016/j.revpalbo.2011.11.004 |
container_title |
Review of Palaeobotany and Palynology |
container_volume |
171 |
container_start_page |
40 |
op_container_end_page |
56 |
_version_ |
1766216246729113600 |