Globigerinoides rublobatus - a new species of Pleistocene planktonic foraminifera
We describe Globigerinoides rublobatus n. sp., a new morphospecies of fossil planktonic foraminifera, from the Pleistocene sediments (∼810 ka) of the Indian Ocean and Pacific Ocean. We use image analysis and morphometry of 860 specimens from International Ocean Discovery Program Site U1483 in the tr...
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Copernicus Publications
2023
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Online Access: | https://orca.cardiff.ac.uk/id/eprint/161363/ https://doi.org/10.5194/jm-42-57-2023 https://orca.cardiff.ac.uk/id/eprint/161363/1/jm-42-57-2023.pdf |
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ftunivcardiff:oai:https://orca.cardiff.ac.uk:161363 2023-08-27T04:11:35+02:00 Globigerinoides rublobatus - a new species of Pleistocene planktonic foraminifera Latas, Marcin Pearson, Paul N. Poole, Christopher R. Fabbrini, Alessio Wade, Bridget S. 2023-07-17 application/pdf https://orca.cardiff.ac.uk/id/eprint/161363/ https://doi.org/10.5194/jm-42-57-2023 https://orca.cardiff.ac.uk/id/eprint/161363/1/jm-42-57-2023.pdf en eng Copernicus Publications https://orca.cardiff.ac.uk/id/eprint/161363/1/jm-42-57-2023.pdf Latas, Marcin, Pearson, Paul N. https://orca.cardiff.ac.uk/view/cardiffauthors/A0179150.html orcid:0000-0003-4628-9818 orcid:0000-0003-4628-9818, Poole, Christopher R., Fabbrini, Alessio and Wade, Bridget S. 2023. Globigerinoides rublobatus - a new species of Pleistocene planktonic foraminifera. Journal of Micropalaeontology 42 (2) , 57–81. 10.5194/jm-42-57-2023 https://doi.org/10.5194/jm-42-57-2023 file https://orca.cardiff.ac.uk/id/eprint/161363/1/jm-42-57-2023.pdf doi:10.5194/jm-42-57-2023 cc_by_4_0 Article PeerReviewed 2023 ftunivcardiff https://doi.org/10.5194/jm-42-57-2023 2023-08-03T22:37:55Z We describe Globigerinoides rublobatus n. sp., a new morphospecies of fossil planktonic foraminifera, from the Pleistocene sediments (∼810 ka) of the Indian Ocean and Pacific Ocean. We use image analysis and morphometry of 860 specimens from International Ocean Discovery Program Site U1483 in the tropical Indian Ocean to document morphological variability in the new morphospecies and related taxa, and we also report it from Pacific Ocean Site U1486 for the first time. The new morphospecies combines characteristics typical of Globigerinoides conglobatus (Brady, 1879) and Globigerinoides ruber (d'Orbigny, 1839), with which it co-occurs, but is distinct from both. Morphometric data indicate that G. rublobatus n. sp. is closer to G. conglobatus, potentially signalling an evolutionary affinity. We find that Globigerinoides rublobatus n. sp. occurs as two variants, a pigmented (pink) form and a non-pigmented (white) form. The non-pigmented forms are on average ∼50 % larger than the pigmented forms. This is so far only the third instance of fossil planktonic foraminifera known to exhibit this pink pigmentation. We regard the pink and white forms as variants of a single morphospecies and suggest the pink form may represent a later evolutionary adaptation. Article in Journal/Newspaper Planktonic foraminifera Cardiff University: ORCA (Online Research @ Cardiff) Pacific Indian Journal of Micropalaeontology 42 2 57 81 |
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Open Polar |
collection |
Cardiff University: ORCA (Online Research @ Cardiff) |
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ftunivcardiff |
language |
English |
description |
We describe Globigerinoides rublobatus n. sp., a new morphospecies of fossil planktonic foraminifera, from the Pleistocene sediments (∼810 ka) of the Indian Ocean and Pacific Ocean. We use image analysis and morphometry of 860 specimens from International Ocean Discovery Program Site U1483 in the tropical Indian Ocean to document morphological variability in the new morphospecies and related taxa, and we also report it from Pacific Ocean Site U1486 for the first time. The new morphospecies combines characteristics typical of Globigerinoides conglobatus (Brady, 1879) and Globigerinoides ruber (d'Orbigny, 1839), with which it co-occurs, but is distinct from both. Morphometric data indicate that G. rublobatus n. sp. is closer to G. conglobatus, potentially signalling an evolutionary affinity. We find that Globigerinoides rublobatus n. sp. occurs as two variants, a pigmented (pink) form and a non-pigmented (white) form. The non-pigmented forms are on average ∼50 % larger than the pigmented forms. This is so far only the third instance of fossil planktonic foraminifera known to exhibit this pink pigmentation. We regard the pink and white forms as variants of a single morphospecies and suggest the pink form may represent a later evolutionary adaptation. |
format |
Article in Journal/Newspaper |
author |
Latas, Marcin Pearson, Paul N. Poole, Christopher R. Fabbrini, Alessio Wade, Bridget S. |
spellingShingle |
Latas, Marcin Pearson, Paul N. Poole, Christopher R. Fabbrini, Alessio Wade, Bridget S. Globigerinoides rublobatus - a new species of Pleistocene planktonic foraminifera |
author_facet |
Latas, Marcin Pearson, Paul N. Poole, Christopher R. Fabbrini, Alessio Wade, Bridget S. |
author_sort |
Latas, Marcin |
title |
Globigerinoides rublobatus - a new species of Pleistocene planktonic foraminifera |
title_short |
Globigerinoides rublobatus - a new species of Pleistocene planktonic foraminifera |
title_full |
Globigerinoides rublobatus - a new species of Pleistocene planktonic foraminifera |
title_fullStr |
Globigerinoides rublobatus - a new species of Pleistocene planktonic foraminifera |
title_full_unstemmed |
Globigerinoides rublobatus - a new species of Pleistocene planktonic foraminifera |
title_sort |
globigerinoides rublobatus - a new species of pleistocene planktonic foraminifera |
publisher |
Copernicus Publications |
publishDate |
2023 |
url |
https://orca.cardiff.ac.uk/id/eprint/161363/ https://doi.org/10.5194/jm-42-57-2023 https://orca.cardiff.ac.uk/id/eprint/161363/1/jm-42-57-2023.pdf |
geographic |
Pacific Indian |
geographic_facet |
Pacific Indian |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_relation |
https://orca.cardiff.ac.uk/id/eprint/161363/1/jm-42-57-2023.pdf Latas, Marcin, Pearson, Paul N. https://orca.cardiff.ac.uk/view/cardiffauthors/A0179150.html orcid:0000-0003-4628-9818 orcid:0000-0003-4628-9818, Poole, Christopher R., Fabbrini, Alessio and Wade, Bridget S. 2023. Globigerinoides rublobatus - a new species of Pleistocene planktonic foraminifera. Journal of Micropalaeontology 42 (2) , 57–81. 10.5194/jm-42-57-2023 https://doi.org/10.5194/jm-42-57-2023 file https://orca.cardiff.ac.uk/id/eprint/161363/1/jm-42-57-2023.pdf doi:10.5194/jm-42-57-2023 |
op_rights |
cc_by_4_0 |
op_doi |
https://doi.org/10.5194/jm-42-57-2023 |
container_title |
Journal of Micropalaeontology |
container_volume |
42 |
container_issue |
2 |
container_start_page |
57 |
op_container_end_page |
81 |
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1775354515203031040 |