Morphostatistical analysis of Maastrichtian populations of Guembelitria from El Kef, Tunisia
Three species of Guembelitria with regular triserial arrangement are recognized in the late Maastrichtian, based on biometric measures of specimens from El Kef (Tunisia) and morphostatistical analysis. They are mainly recognized based on their test height and rate of increase in size of the chambers...
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ftconicet:oai:ri.conicet.gov.ar:11336/103084 2023-10-09T21:55:24+02:00 Morphostatistical analysis of Maastrichtian populations of Guembelitria from El Kef, Tunisia Arz, José A. Arenillas, Ignacio Nañez, Carolina Adela application/pdf http://hdl.handle.net/11336/103084 eng eng Cushman Foundation for Foraminiferal Research info:eu-repo/semantics/altIdentifier/url/https://pubs.geoscienceworld.org/cushmanfoundation/jfr/article-abstract/40/2/148/77209/MORPHOSTATISTICAL-ANALYSIS-OF-MAASTRICHTIAN?redirectedFrom=fulltext info:eu-repo/semantics/altIdentifier/doi/10.2113/gsjfr.40.2.148 http://hdl.handle.net/11336/103084 Arz, José A.; Arenillas, Ignacio; Nañez, Carolina Adela; Morphostatistical analysis of Maastrichtian populations of Guembelitria from El Kef, Tunisia; Cushman Foundation for Foraminiferal Research; Journal of Foraminiferal Research; 40; 2; 3-2010; 148-164 0096-1191 CONICET Digital CONICET info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ Planktonic Foraminifera Guembelitria Maastrichtian new species https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion ftconicet https://doi.org/10.2113/gsjfr.40.2.148 2023-09-24T19:24:06Z Three species of Guembelitria with regular triserial arrangement are recognized in the late Maastrichtian, based on biometric measures of specimens from El Kef (Tunisia) and morphostatistical analysis. They are mainly recognized based on their test height and rate of increase in size of the chambers. Guembelitria blowi, nov. sp. is proposed for the short-spired morphotypes that were previously ascribed to Guembelitria trifolia. Guembelitria cretacea Cushman, 1933, is restricted to medium-spired morphotypes, and Guembelitria dammula Voloshina, 1961, to high-spired morphotypes. The three morphospecies have a papillate test surface, usually with pore-mounds, but some specimens exhibit imperforate papillae. The origin of this variability in the guembelitrid test surface might be linked to ecophenotypy or ontogeny, but the presence of cryptic species cannot be ruled out. Fil: Arz, José A. Universidad de Zaragoza; España Fil: Arenillas, Ignacio. Universidad de Zaragoza; España Fil: Nañez, Carolina Adela. Secretaria de Industria y Mineria. Servicio Geológico Minero Argentino. Subsecretaria de Mineria; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Article in Journal/Newspaper Planktonic foraminifera CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) Argentino Argentina The Journal of Foraminiferal Research 40 2 148 164 |
institution |
Open Polar |
collection |
CONICET Digital (Consejo Nacional de Investigaciones Científicas y Técnicas) |
op_collection_id |
ftconicet |
language |
English |
topic |
Planktonic Foraminifera Guembelitria Maastrichtian new species https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
spellingShingle |
Planktonic Foraminifera Guembelitria Maastrichtian new species https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 Arz, José A. Arenillas, Ignacio Nañez, Carolina Adela Morphostatistical analysis of Maastrichtian populations of Guembelitria from El Kef, Tunisia |
topic_facet |
Planktonic Foraminifera Guembelitria Maastrichtian new species https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
description |
Three species of Guembelitria with regular triserial arrangement are recognized in the late Maastrichtian, based on biometric measures of specimens from El Kef (Tunisia) and morphostatistical analysis. They are mainly recognized based on their test height and rate of increase in size of the chambers. Guembelitria blowi, nov. sp. is proposed for the short-spired morphotypes that were previously ascribed to Guembelitria trifolia. Guembelitria cretacea Cushman, 1933, is restricted to medium-spired morphotypes, and Guembelitria dammula Voloshina, 1961, to high-spired morphotypes. The three morphospecies have a papillate test surface, usually with pore-mounds, but some specimens exhibit imperforate papillae. The origin of this variability in the guembelitrid test surface might be linked to ecophenotypy or ontogeny, but the presence of cryptic species cannot be ruled out. Fil: Arz, José A. Universidad de Zaragoza; España Fil: Arenillas, Ignacio. Universidad de Zaragoza; España Fil: Nañez, Carolina Adela. Secretaria de Industria y Mineria. Servicio Geológico Minero Argentino. Subsecretaria de Mineria; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina |
format |
Article in Journal/Newspaper |
author |
Arz, José A. Arenillas, Ignacio Nañez, Carolina Adela |
author_facet |
Arz, José A. Arenillas, Ignacio Nañez, Carolina Adela |
author_sort |
Arz, José A. |
title |
Morphostatistical analysis of Maastrichtian populations of Guembelitria from El Kef, Tunisia |
title_short |
Morphostatistical analysis of Maastrichtian populations of Guembelitria from El Kef, Tunisia |
title_full |
Morphostatistical analysis of Maastrichtian populations of Guembelitria from El Kef, Tunisia |
title_fullStr |
Morphostatistical analysis of Maastrichtian populations of Guembelitria from El Kef, Tunisia |
title_full_unstemmed |
Morphostatistical analysis of Maastrichtian populations of Guembelitria from El Kef, Tunisia |
title_sort |
morphostatistical analysis of maastrichtian populations of guembelitria from el kef, tunisia |
publisher |
Cushman Foundation for Foraminiferal Research |
url |
http://hdl.handle.net/11336/103084 |
geographic |
Argentino Argentina |
geographic_facet |
Argentino Argentina |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_relation |
info:eu-repo/semantics/altIdentifier/url/https://pubs.geoscienceworld.org/cushmanfoundation/jfr/article-abstract/40/2/148/77209/MORPHOSTATISTICAL-ANALYSIS-OF-MAASTRICHTIAN?redirectedFrom=fulltext info:eu-repo/semantics/altIdentifier/doi/10.2113/gsjfr.40.2.148 http://hdl.handle.net/11336/103084 Arz, José A.; Arenillas, Ignacio; Nañez, Carolina Adela; Morphostatistical analysis of Maastrichtian populations of Guembelitria from El Kef, Tunisia; Cushman Foundation for Foraminiferal Research; Journal of Foraminiferal Research; 40; 2; 3-2010; 148-164 0096-1191 CONICET Digital CONICET |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
op_doi |
https://doi.org/10.2113/gsjfr.40.2.148 |
container_title |
The Journal of Foraminiferal Research |
container_volume |
40 |
container_issue |
2 |
container_start_page |
148 |
op_container_end_page |
164 |
_version_ |
1779319293940334592 |