Upper Eocene planktonic foraminifera from northern Saudi Arabia: implications for stratigraphic ranges
The Rashrashiyah Formation of the Sirhan Basin in northern Saudi Arabia contains diverse assemblages of planktonic foraminifera. We examined the biostratigraphy, stratigraphic range and preservation of upper Eocene planktonic foraminifera. Assemblages are well-preserved and diverse, with 40 species...
Published in: | Journal of Micropalaeontology |
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Copernicus Publications
2021
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00058251 2023-05-15T18:00:06+02:00 Upper Eocene planktonic foraminifera from northern Saudi Arabia: implications for stratigraphic ranges Wade, Bridget S. Aljahdali, Mohammed H. Mufrreh, Yahya A. Memesh, Abdullah M. AlSoubhi, Salih A. Zalmout, Iyad S. 2021-09 electronic https://doi.org/10.5194/jm-40-145-2021 https://noa.gwlb.de/receive/cop_mods_00058251 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00057901/jm-40-145-2021.pdf https://jm.copernicus.org/articles/40/145/2021/jm-40-145-2021.pdf eng eng Copernicus Publications Journal of Micropalaeontology -- http://www.bibliothek.uni-regensburg.de/ezeit/?2053393 -- https://www.j-micropalaeontol.net/volumes.html -- http://jm.geoscienceworld.org/ -- 2041-4978 https://doi.org/10.5194/jm-40-145-2021 https://noa.gwlb.de/receive/cop_mods_00058251 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00057901/jm-40-145-2021.pdf https://jm.copernicus.org/articles/40/145/2021/jm-40-145-2021.pdf https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess CC-BY article Verlagsveröffentlichung article Text doc-type:article 2021 ftnonlinearchiv https://doi.org/10.5194/jm-40-145-2021 2022-02-08T22:33:09Z The Rashrashiyah Formation of the Sirhan Basin in northern Saudi Arabia contains diverse assemblages of planktonic foraminifera. We examined the biostratigraphy, stratigraphic range and preservation of upper Eocene planktonic foraminifera. Assemblages are well-preserved and diverse, with 40 species and 11 genera. All samples are assigned to the Priabonian Globigerinatheka semiinvoluta Highest Occurrence Zone (E14), consistent with calcareous nannofossil biostratigraphy indicating Zone CNE17. Well-preserved planktonic foraminifera assemblages from the lower part of the upper Eocene are rare worldwide. Our study provides new insights into the stratigraphic ranges of many species. We find older (Zone E14) stratigraphic occurrences of several species of Globoturborotalita previously thought to have evolved in the latest Eocene (Zone E15, E16) or Oligocene; these include G. barbula, G. cancellata, G. gnaucki, G. pseudopraebulloides, and G. paracancellata. Older stratigraphic occurrences for Dentoglobigerina taci and Subbotina projecta are also found, and Globigerinatheka kugleri occurs at a younger stratigraphic level than previously proposed. Our revisions to stratigraphic ranges indicate that the late Eocene had a higher tropical–subtropical diversity of planktonic foraminifera than hitherto reported. Article in Journal/Newspaper Planktonic foraminifera Niedersächsisches Online-Archiv NOA Journal of Micropalaeontology 40 2 145 161 |
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Niedersächsisches Online-Archiv NOA |
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English |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Wade, Bridget S. Aljahdali, Mohammed H. Mufrreh, Yahya A. Memesh, Abdullah M. AlSoubhi, Salih A. Zalmout, Iyad S. Upper Eocene planktonic foraminifera from northern Saudi Arabia: implications for stratigraphic ranges |
topic_facet |
article Verlagsveröffentlichung |
description |
The Rashrashiyah Formation of the Sirhan Basin in northern Saudi Arabia contains diverse assemblages of planktonic foraminifera. We examined the biostratigraphy, stratigraphic range and preservation of upper Eocene planktonic foraminifera. Assemblages are well-preserved and diverse, with 40 species and 11 genera. All samples are assigned to the Priabonian Globigerinatheka semiinvoluta Highest Occurrence Zone (E14), consistent with calcareous nannofossil biostratigraphy indicating Zone CNE17. Well-preserved planktonic foraminifera assemblages from the lower part of the upper Eocene are rare worldwide. Our study provides new insights into the stratigraphic ranges of many species. We find older (Zone E14) stratigraphic occurrences of several species of Globoturborotalita previously thought to have evolved in the latest Eocene (Zone E15, E16) or Oligocene; these include G. barbula, G. cancellata, G. gnaucki, G. pseudopraebulloides, and G. paracancellata. Older stratigraphic occurrences for Dentoglobigerina taci and Subbotina projecta are also found, and Globigerinatheka kugleri occurs at a younger stratigraphic level than previously proposed. Our revisions to stratigraphic ranges indicate that the late Eocene had a higher tropical–subtropical diversity of planktonic foraminifera than hitherto reported. |
format |
Article in Journal/Newspaper |
author |
Wade, Bridget S. Aljahdali, Mohammed H. Mufrreh, Yahya A. Memesh, Abdullah M. AlSoubhi, Salih A. Zalmout, Iyad S. |
author_facet |
Wade, Bridget S. Aljahdali, Mohammed H. Mufrreh, Yahya A. Memesh, Abdullah M. AlSoubhi, Salih A. Zalmout, Iyad S. |
author_sort |
Wade, Bridget S. |
title |
Upper Eocene planktonic foraminifera from northern Saudi Arabia: implications for stratigraphic ranges |
title_short |
Upper Eocene planktonic foraminifera from northern Saudi Arabia: implications for stratigraphic ranges |
title_full |
Upper Eocene planktonic foraminifera from northern Saudi Arabia: implications for stratigraphic ranges |
title_fullStr |
Upper Eocene planktonic foraminifera from northern Saudi Arabia: implications for stratigraphic ranges |
title_full_unstemmed |
Upper Eocene planktonic foraminifera from northern Saudi Arabia: implications for stratigraphic ranges |
title_sort |
upper eocene planktonic foraminifera from northern saudi arabia: implications for stratigraphic ranges |
publisher |
Copernicus Publications |
publishDate |
2021 |
url |
https://doi.org/10.5194/jm-40-145-2021 https://noa.gwlb.de/receive/cop_mods_00058251 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00057901/jm-40-145-2021.pdf https://jm.copernicus.org/articles/40/145/2021/jm-40-145-2021.pdf |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_relation |
Journal of Micropalaeontology -- http://www.bibliothek.uni-regensburg.de/ezeit/?2053393 -- https://www.j-micropalaeontol.net/volumes.html -- http://jm.geoscienceworld.org/ -- 2041-4978 https://doi.org/10.5194/jm-40-145-2021 https://noa.gwlb.de/receive/cop_mods_00058251 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00057901/jm-40-145-2021.pdf https://jm.copernicus.org/articles/40/145/2021/jm-40-145-2021.pdf |
op_rights |
https://creativecommons.org/licenses/by/4.0/ uneingeschränkt info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/jm-40-145-2021 |
container_title |
Journal of Micropalaeontology |
container_volume |
40 |
container_issue |
2 |
container_start_page |
145 |
op_container_end_page |
161 |
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1766169056951402496 |