New Species from the Sabrina Flora: An Early Paleogene Pollen and Spore Assemblage from the Sabrina Coast, East Antarctica
Palynological analyses of 13 samples from two sediment cores retrieved from the Sabrina Coast, East Antarctica provide rare information regarding the paleovegetation within the Aurora Basin, which today is covered by the East Antarctic Ice Sheet. The assemblages, hereafter referred to as the Sabrina...
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Digital Commons @ University of South Florida
2018
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Online Access: | https://digitalcommons.usf.edu/msc_facpub/2468 https://doi.org/10.1080/01916122.2018.1471422 |
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ftunisfloridatam:oai:digitalcommons.usf.edu:msc_facpub-3477 2023-05-15T13:35:21+02:00 New Species from the Sabrina Flora: An Early Paleogene Pollen and Spore Assemblage from the Sabrina Coast, East Antarctica Smith, Catherine Warny, Sophie Shevenell, Amelia E Gulick, Sean P.S. Leventer, Amy 2018-01-01T08:00:00Z https://digitalcommons.usf.edu/msc_facpub/2468 https://doi.org/10.1080/01916122.2018.1471422 unknown Digital Commons @ University of South Florida https://digitalcommons.usf.edu/msc_facpub/2468 https://doi.org/10.1080/01916122.2018.1471422 Marine Science Faculty Publications Paleocene Eocene Aurora Basin Sabrina Coast East Antarctica Gambierina Battenipollis Life Sciences article 2018 ftunisfloridatam https://doi.org/10.1080/01916122.2018.1471422 2022-04-07T17:43:04Z Palynological analyses of 13 samples from two sediment cores retrieved from the Sabrina Coast, East Antarctica provide rare information regarding the paleovegetation within the Aurora Basin, which today is covered by the East Antarctic Ice Sheet. The assemblages, hereafter referred to as the Sabrina Flora, are dominated by angiosperms, with complexes of Gambierina (G.) rudata and G. edwardsii representing 38–66% of the assemblage and an abundant and diverse Proteaceae component. The Sabrina Flora also includes Battenipollis sectilis, Forcipites sp. and Nothofagidites (N.) spp. (mostly belonging to the N. cf. rocaensis-cf. flemingii complex), along with a few fern spores, including Laevigatosporites ovatus, a moderate presence of conifers, and previously undescribed angiosperm morphospecies. Two of these, Battenipollis sabrinae sp. nov. and being Gambierina askiniae sp. nov., are described herein. A majority of the assemblage is interpreted as deposited contemporaneously with sedimentation, including Gambierina spp., which is traditionally assigned a Cretaceous–earliest Eocene age range. However, our age diagnosis for the Sabrina Flora, based on key morphospecies, indicates that sediment was most likely deposited between the latest Paleocene to early–middle Eocene, and that Gambierina rudata and G. edwardsii extended longer than previously proposed. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Ice Sheet Digital Commons University of South Florida (USF) Antarctic East Antarctic Ice Sheet East Antarctica Sabrina Coast ENVELOPE(118.550,118.550,-67.000,-67.000) Palynology 43 4 650 659 |
institution |
Open Polar |
collection |
Digital Commons University of South Florida (USF) |
op_collection_id |
ftunisfloridatam |
language |
unknown |
topic |
Paleocene Eocene Aurora Basin Sabrina Coast East Antarctica Gambierina Battenipollis Life Sciences |
spellingShingle |
Paleocene Eocene Aurora Basin Sabrina Coast East Antarctica Gambierina Battenipollis Life Sciences Smith, Catherine Warny, Sophie Shevenell, Amelia E Gulick, Sean P.S. Leventer, Amy New Species from the Sabrina Flora: An Early Paleogene Pollen and Spore Assemblage from the Sabrina Coast, East Antarctica |
topic_facet |
Paleocene Eocene Aurora Basin Sabrina Coast East Antarctica Gambierina Battenipollis Life Sciences |
description |
Palynological analyses of 13 samples from two sediment cores retrieved from the Sabrina Coast, East Antarctica provide rare information regarding the paleovegetation within the Aurora Basin, which today is covered by the East Antarctic Ice Sheet. The assemblages, hereafter referred to as the Sabrina Flora, are dominated by angiosperms, with complexes of Gambierina (G.) rudata and G. edwardsii representing 38–66% of the assemblage and an abundant and diverse Proteaceae component. The Sabrina Flora also includes Battenipollis sectilis, Forcipites sp. and Nothofagidites (N.) spp. (mostly belonging to the N. cf. rocaensis-cf. flemingii complex), along with a few fern spores, including Laevigatosporites ovatus, a moderate presence of conifers, and previously undescribed angiosperm morphospecies. Two of these, Battenipollis sabrinae sp. nov. and being Gambierina askiniae sp. nov., are described herein. A majority of the assemblage is interpreted as deposited contemporaneously with sedimentation, including Gambierina spp., which is traditionally assigned a Cretaceous–earliest Eocene age range. However, our age diagnosis for the Sabrina Flora, based on key morphospecies, indicates that sediment was most likely deposited between the latest Paleocene to early–middle Eocene, and that Gambierina rudata and G. edwardsii extended longer than previously proposed. |
format |
Article in Journal/Newspaper |
author |
Smith, Catherine Warny, Sophie Shevenell, Amelia E Gulick, Sean P.S. Leventer, Amy |
author_facet |
Smith, Catherine Warny, Sophie Shevenell, Amelia E Gulick, Sean P.S. Leventer, Amy |
author_sort |
Smith, Catherine |
title |
New Species from the Sabrina Flora: An Early Paleogene Pollen and Spore Assemblage from the Sabrina Coast, East Antarctica |
title_short |
New Species from the Sabrina Flora: An Early Paleogene Pollen and Spore Assemblage from the Sabrina Coast, East Antarctica |
title_full |
New Species from the Sabrina Flora: An Early Paleogene Pollen and Spore Assemblage from the Sabrina Coast, East Antarctica |
title_fullStr |
New Species from the Sabrina Flora: An Early Paleogene Pollen and Spore Assemblage from the Sabrina Coast, East Antarctica |
title_full_unstemmed |
New Species from the Sabrina Flora: An Early Paleogene Pollen and Spore Assemblage from the Sabrina Coast, East Antarctica |
title_sort |
new species from the sabrina flora: an early paleogene pollen and spore assemblage from the sabrina coast, east antarctica |
publisher |
Digital Commons @ University of South Florida |
publishDate |
2018 |
url |
https://digitalcommons.usf.edu/msc_facpub/2468 https://doi.org/10.1080/01916122.2018.1471422 |
long_lat |
ENVELOPE(118.550,118.550,-67.000,-67.000) |
geographic |
Antarctic East Antarctic Ice Sheet East Antarctica Sabrina Coast |
geographic_facet |
Antarctic East Antarctic Ice Sheet East Antarctica Sabrina Coast |
genre |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet |
op_source |
Marine Science Faculty Publications |
op_relation |
https://digitalcommons.usf.edu/msc_facpub/2468 https://doi.org/10.1080/01916122.2018.1471422 |
op_doi |
https://doi.org/10.1080/01916122.2018.1471422 |
container_title |
Palynology |
container_volume |
43 |
container_issue |
4 |
container_start_page |
650 |
op_container_end_page |
659 |
_version_ |
1766064746415521792 |