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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AASP: The Palynological Society
2019
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ftbioone:10.1080/01916122.2018.1471422 2024-06-02T07:57:54+00:00 New Species from the Sabrina Flora: An Early Paleogene Pollen and Spore Assemblage from the Sabrina Coast, East Antarctica Catherine Smith Sophie Warny Amelia E. Shevenell Sean P.S. Gulick Amy Leventer Catherine Smith Sophie Warny Amelia E. Shevenell Sean P.S. Gulick Amy Leventer world 2019-10-08 text/HTML https://doi.org/10.1080/01916122.2018.1471422 en eng AASP: The Palynological Society doi:10.1080/01916122.2018.1471422 All rights reserved. https://doi.org/10.1080/01916122.2018.1471422 Text 2019 ftbioone https://doi.org/10.1080/01916122.2018.1471422 2024-05-07T00:50:35Z 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. Text Antarc* Antarctic Antarctica East Antarctica Ice Sheet BioOne Online Journals Antarctic East Antarctica East Antarctic Ice Sheet Sabrina Coast ENVELOPE(118.550,118.550,-67.000,-67.000) Palynology 43 4 650 659 |
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BioOne Online Journals |
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ftbioone |
language |
English |
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. |
author2 |
Catherine Smith Sophie Warny Amelia E. Shevenell Sean P.S. Gulick Amy Leventer |
format |
Text |
author |
Catherine Smith Sophie Warny Amelia E. Shevenell Sean P.S. Gulick Amy Leventer |
spellingShingle |
Catherine Smith Sophie Warny Amelia E. Shevenell Sean P.S. Gulick Amy Leventer New Species from the Sabrina Flora: An Early Paleogene Pollen and Spore Assemblage from the Sabrina Coast, East Antarctica |
author_facet |
Catherine Smith Sophie Warny Amelia E. Shevenell Sean P.S. Gulick Amy Leventer |
author_sort |
Catherine Smith |
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 |
AASP: The Palynological Society |
publishDate |
2019 |
url |
https://doi.org/10.1080/01916122.2018.1471422 |
op_coverage |
world |
long_lat |
ENVELOPE(118.550,118.550,-67.000,-67.000) |
geographic |
Antarctic East Antarctica East Antarctic Ice Sheet Sabrina Coast |
geographic_facet |
Antarctic East Antarctica East Antarctic Ice Sheet Sabrina Coast |
genre |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet |
op_source |
https://doi.org/10.1080/01916122.2018.1471422 |
op_relation |
doi:10.1080/01916122.2018.1471422 |
op_rights |
All rights reserved. |
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_ |
1800741118313234432 |