Bridging the extant and fossil record of planktonic foraminifera: implications for the Globigerina lineage
Abstract We conducted a morphometric study and wall texture analysis on extant and fossil specimens of the planktonic foraminifera Globigerina falconensis plexus. Our global data reveal morphological inconsistencies between fossil and extant populations. Our results are significant as G. falconensis...
Published in: | Palaeontology |
---|---|
Main Authors: | , , , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2023
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/pala.12676 https://onlinelibrary.wiley.com/doi/pdf/10.1111/pala.12676 |
id |
crwiley:10.1111/pala.12676 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/pala.12676 2024-09-15T18:23:43+00:00 Bridging the extant and fossil record of planktonic foraminifera: implications for the Globigerina lineage Fabbrini, Alessio Greco, Mattia Iacoviello, Francesco Kucera, Michal Ezard, Thomas H.G. Wade, Bridget S. Natural Environment Research Council 2023 http://dx.doi.org/10.1111/pala.12676 https://onlinelibrary.wiley.com/doi/pdf/10.1111/pala.12676 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Palaeontology volume 66, issue 6 ISSN 0031-0239 1475-4983 journal-article 2023 crwiley https://doi.org/10.1111/pala.12676 2024-08-13T04:18:14Z Abstract We conducted a morphometric study and wall texture analysis on extant and fossil specimens of the planktonic foraminifera Globigerina falconensis plexus. Our global data reveal morphological inconsistencies between fossil and extant populations. Our results are significant as G. falconensis is widely used in palaeoceanographic studies in conjunction with its sister taxon G. bulloides . Morphologically these two species are similar, with the main difference being the distinctive apertural lip present in G . falconensis . We selected cores covering the entire stratigraphic range of G . falconensis , from the early Miocene to current day, spanning sites from high latitudes in the North Atlantic Ocean and the southern Indian Ocean to sites in equatorial regions. The morphology found in the modern ocean is not consistent with the Miocene holotype of Globigerina falconensis Blow described from lower Miocene sediments in Venezuela. A more lobate morphology evolved in the late Miocene, thus, a new name is required for this morphotype, coexisting in the modern oceans with G . falconensis s.s . We thus describe the new morphospecies, G . neofalconensis for the more lobate forms which evolved in the late Miocene and inhabit the modern oceans. Additionally, we report a pseudocancellate wall texture present in the G . falconensis plexus. We use the molecular sequences from the PR 2 database to explore the generic attribution of the G . falconensis lineage, confirming its close relationship with G . bulloides and its retention in the genus Globigerina . Article in Journal/Newspaper North Atlantic Planktonic foraminifera Wiley Online Library Palaeontology 66 6 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract We conducted a morphometric study and wall texture analysis on extant and fossil specimens of the planktonic foraminifera Globigerina falconensis plexus. Our global data reveal morphological inconsistencies between fossil and extant populations. Our results are significant as G. falconensis is widely used in palaeoceanographic studies in conjunction with its sister taxon G. bulloides . Morphologically these two species are similar, with the main difference being the distinctive apertural lip present in G . falconensis . We selected cores covering the entire stratigraphic range of G . falconensis , from the early Miocene to current day, spanning sites from high latitudes in the North Atlantic Ocean and the southern Indian Ocean to sites in equatorial regions. The morphology found in the modern ocean is not consistent with the Miocene holotype of Globigerina falconensis Blow described from lower Miocene sediments in Venezuela. A more lobate morphology evolved in the late Miocene, thus, a new name is required for this morphotype, coexisting in the modern oceans with G . falconensis s.s . We thus describe the new morphospecies, G . neofalconensis for the more lobate forms which evolved in the late Miocene and inhabit the modern oceans. Additionally, we report a pseudocancellate wall texture present in the G . falconensis plexus. We use the molecular sequences from the PR 2 database to explore the generic attribution of the G . falconensis lineage, confirming its close relationship with G . bulloides and its retention in the genus Globigerina . |
author2 |
Natural Environment Research Council |
format |
Article in Journal/Newspaper |
author |
Fabbrini, Alessio Greco, Mattia Iacoviello, Francesco Kucera, Michal Ezard, Thomas H.G. Wade, Bridget S. |
spellingShingle |
Fabbrini, Alessio Greco, Mattia Iacoviello, Francesco Kucera, Michal Ezard, Thomas H.G. Wade, Bridget S. Bridging the extant and fossil record of planktonic foraminifera: implications for the Globigerina lineage |
author_facet |
Fabbrini, Alessio Greco, Mattia Iacoviello, Francesco Kucera, Michal Ezard, Thomas H.G. Wade, Bridget S. |
author_sort |
Fabbrini, Alessio |
title |
Bridging the extant and fossil record of planktonic foraminifera: implications for the Globigerina lineage |
title_short |
Bridging the extant and fossil record of planktonic foraminifera: implications for the Globigerina lineage |
title_full |
Bridging the extant and fossil record of planktonic foraminifera: implications for the Globigerina lineage |
title_fullStr |
Bridging the extant and fossil record of planktonic foraminifera: implications for the Globigerina lineage |
title_full_unstemmed |
Bridging the extant and fossil record of planktonic foraminifera: implications for the Globigerina lineage |
title_sort |
bridging the extant and fossil record of planktonic foraminifera: implications for the globigerina lineage |
publisher |
Wiley |
publishDate |
2023 |
url |
http://dx.doi.org/10.1111/pala.12676 https://onlinelibrary.wiley.com/doi/pdf/10.1111/pala.12676 |
genre |
North Atlantic Planktonic foraminifera |
genre_facet |
North Atlantic Planktonic foraminifera |
op_source |
Palaeontology volume 66, issue 6 ISSN 0031-0239 1475-4983 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1111/pala.12676 |
container_title |
Palaeontology |
container_volume |
66 |
container_issue |
6 |
_version_ |
1810463985309319168 |