Functional morphology of the Ordovician plectambonitoid brachiopod Inversella ( Reinversella ) arancibiai Herrera & Benedetto from the San Juan Formation, Argentine Precordillera

Autores
Benedetto, Juan Luis Arnaldo; Sorrentino, Leonor; Cech, Norma Beatriz; Sanchez, Teresa Maria
Año de publicación
2008
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
New well-preserved material of the plectambonitoid brachiopod Inversella (Reinversella) arancibiai Herrera & Benedetto, 1987 collected from the San Juan Formation (Darriwilian, Middle Ordovician) of the Argentine Precordillera is described and illustrated, allowing a better understanding of its functional morphology. Inversella (Reinversella) is one of the earliest known brachiopods to develop a geniculate shell. Adult specimens of I. (R.) arancibiai have an open delthyrium indicating attachment throughout life. We infer that juvenile specimens lacking geniculation lived umbo-down and that development of geniculation could reflect a progressive change in mode of life from erect to reclined. The posterior thickening of valves indicates a life position with the umbonal region sunk in the substrate and the trail orientated in a subvertical position. Since open shelf settings inhabited by I. (R.) arancibiai have low sedimentation rates, it seems improbable that geniculation was an adaptation to counter shell burial. Its function was most probably to separate exhalant and inhalant currents. We hypothesize that the deep channel developed along the periphery of the ventral valve functioned as a collector of waste waters towards the posterolateral regions of the shell where exhalant currents were expelled.
Fil: Benedetto, Juan Luis Arnaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones Paleobiológicas; Argentina
Fil: Sorrentino, Leonor. Monash University; Australia
Fil: Cech, Norma Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones Paleobiológicas; Argentina
Fil: Sanchez, Teresa Maria. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones Paleobiológicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
Materia
morfologia funcional
braquiopodo
inversella
formacion San Juan
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/242691
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/242691
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Functional morphology of the Ordovician plectambonitoid brachiopod Inversella ( Reinversella ) arancibiai Herrera & Benedetto from the San Juan Formation, Argentine PrecordilleraBenedetto, Juan Luis ArnaldoSorrentino, LeonorCech, Norma BeatrizSanchez, Teresa Mariamorfologia funcionalbraquiopodoinversellaformacion San Juanhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1New well-preserved material of the plectambonitoid brachiopod Inversella (Reinversella) arancibiai Herrera & Benedetto, 1987 collected from the San Juan Formation (Darriwilian, Middle Ordovician) of the Argentine Precordillera is described and illustrated, allowing a better understanding of its functional morphology. Inversella (Reinversella) is one of the earliest known brachiopods to develop a geniculate shell. Adult specimens of I. (R.) arancibiai have an open delthyrium indicating attachment throughout life. We infer that juvenile specimens lacking geniculation lived umbo-down and that development of geniculation could reflect a progressive change in mode of life from erect to reclined. The posterior thickening of valves indicates a life position with the umbonal region sunk in the substrate and the trail orientated in a subvertical position. Since open shelf settings inhabited by I. (R.) arancibiai have low sedimentation rates, it seems improbable that geniculation was an adaptation to counter shell burial. Its function was most probably to separate exhalant and inhalant currents. We hypothesize that the deep channel developed along the periphery of the ventral valve functioned as a collector of waste waters towards the posterolateral regions of the shell where exhalant currents were expelled.Fil: Benedetto, Juan Luis Arnaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones Paleobiológicas; ArgentinaFil: Sorrentino, Leonor. Monash University; AustraliaFil: Cech, Norma Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones Paleobiológicas; ArgentinaFil: Sanchez, Teresa Maria. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones Paleobiológicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; ArgentinaTaylor & Francis Ltd2008-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/242691Benedetto, Juan Luis Arnaldo; Sorrentino, Leonor; Cech, Norma Beatriz; Sanchez, Teresa Maria; Functional morphology of the Ordovician plectambonitoid brachiopod Inversella ( Reinversella ) arancibiai Herrera & Benedetto from the San Juan Formation, Argentine Precordillera; Taylor & Francis Ltd; Alcheringa; 32; 1; 3-2008; 53-630311-5518CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/03115510701757373info:eu-repo/semantics/altIdentifier/doi/10.1080/03115510701757373info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:27:27Zoai:ri.conicet.gov.ar:11336/242691instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-15 14:27:27.711CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Functional morphology of the Ordovician plectambonitoid brachiopod Inversella ( Reinversella ) arancibiai Herrera & Benedetto from the San Juan Formation, Argentine Precordillera
title Functional morphology of the Ordovician plectambonitoid brachiopod Inversella ( Reinversella ) arancibiai Herrera & Benedetto from the San Juan Formation, Argentine Precordillera
spellingShingle Functional morphology of the Ordovician plectambonitoid brachiopod Inversella ( Reinversella ) arancibiai Herrera & Benedetto from the San Juan Formation, Argentine Precordillera
Benedetto, Juan Luis Arnaldo
morfologia funcional
braquiopodo
inversella
formacion San Juan
title_short Functional morphology of the Ordovician plectambonitoid brachiopod Inversella ( Reinversella ) arancibiai Herrera & Benedetto from the San Juan Formation, Argentine Precordillera
title_full Functional morphology of the Ordovician plectambonitoid brachiopod Inversella ( Reinversella ) arancibiai Herrera & Benedetto from the San Juan Formation, Argentine Precordillera
title_fullStr Functional morphology of the Ordovician plectambonitoid brachiopod Inversella ( Reinversella ) arancibiai Herrera & Benedetto from the San Juan Formation, Argentine Precordillera
title_full_unstemmed Functional morphology of the Ordovician plectambonitoid brachiopod Inversella ( Reinversella ) arancibiai Herrera & Benedetto from the San Juan Formation, Argentine Precordillera
title_sort Functional morphology of the Ordovician plectambonitoid brachiopod Inversella ( Reinversella ) arancibiai Herrera & Benedetto from the San Juan Formation, Argentine Precordillera
dc.creator.none.fl_str_mv Benedetto, Juan Luis Arnaldo
Sorrentino, Leonor
Cech, Norma Beatriz
Sanchez, Teresa Maria
author Benedetto, Juan Luis Arnaldo
author_facet Benedetto, Juan Luis Arnaldo
Sorrentino, Leonor
Cech, Norma Beatriz
Sanchez, Teresa Maria
author_role author
author2 Sorrentino, Leonor
Cech, Norma Beatriz
Sanchez, Teresa Maria
author2_role author
author
author
dc.subject.none.fl_str_mv morfologia funcional
braquiopodo
inversella
formacion San Juan
topic morfologia funcional
braquiopodo
inversella
formacion San Juan
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv New well-preserved material of the plectambonitoid brachiopod Inversella (Reinversella) arancibiai Herrera & Benedetto, 1987 collected from the San Juan Formation (Darriwilian, Middle Ordovician) of the Argentine Precordillera is described and illustrated, allowing a better understanding of its functional morphology. Inversella (Reinversella) is one of the earliest known brachiopods to develop a geniculate shell. Adult specimens of I. (R.) arancibiai have an open delthyrium indicating attachment throughout life. We infer that juvenile specimens lacking geniculation lived umbo-down and that development of geniculation could reflect a progressive change in mode of life from erect to reclined. The posterior thickening of valves indicates a life position with the umbonal region sunk in the substrate and the trail orientated in a subvertical position. Since open shelf settings inhabited by I. (R.) arancibiai have low sedimentation rates, it seems improbable that geniculation was an adaptation to counter shell burial. Its function was most probably to separate exhalant and inhalant currents. We hypothesize that the deep channel developed along the periphery of the ventral valve functioned as a collector of waste waters towards the posterolateral regions of the shell where exhalant currents were expelled.
Fil: Benedetto, Juan Luis Arnaldo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones Paleobiológicas; Argentina
Fil: Sorrentino, Leonor. Monash University; Australia
Fil: Cech, Norma Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba; Argentina. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones Paleobiológicas; Argentina
Fil: Sanchez, Teresa Maria. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones Paleobiológicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Centro de Investigaciones en Ciencias de la Tierra. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Centro de Investigaciones en Ciencias de la Tierra; Argentina
description New well-preserved material of the plectambonitoid brachiopod Inversella (Reinversella) arancibiai Herrera & Benedetto, 1987 collected from the San Juan Formation (Darriwilian, Middle Ordovician) of the Argentine Precordillera is described and illustrated, allowing a better understanding of its functional morphology. Inversella (Reinversella) is one of the earliest known brachiopods to develop a geniculate shell. Adult specimens of I. (R.) arancibiai have an open delthyrium indicating attachment throughout life. We infer that juvenile specimens lacking geniculation lived umbo-down and that development of geniculation could reflect a progressive change in mode of life from erect to reclined. The posterior thickening of valves indicates a life position with the umbonal region sunk in the substrate and the trail orientated in a subvertical position. Since open shelf settings inhabited by I. (R.) arancibiai have low sedimentation rates, it seems improbable that geniculation was an adaptation to counter shell burial. Its function was most probably to separate exhalant and inhalant currents. We hypothesize that the deep channel developed along the periphery of the ventral valve functioned as a collector of waste waters towards the posterolateral regions of the shell where exhalant currents were expelled.
publishDate 2008
dc.date.none.fl_str_mv 2008-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/242691
Benedetto, Juan Luis Arnaldo; Sorrentino, Leonor; Cech, Norma Beatriz; Sanchez, Teresa Maria; Functional morphology of the Ordovician plectambonitoid brachiopod Inversella ( Reinversella ) arancibiai Herrera & Benedetto from the San Juan Formation, Argentine Precordillera; Taylor & Francis Ltd; Alcheringa; 32; 1; 3-2008; 53-63
0311-5518
CONICET Digital
CONICET
url http://hdl.handle.net/11336/242691
identifier_str_mv Benedetto, Juan Luis Arnaldo; Sorrentino, Leonor; Cech, Norma Beatriz; Sanchez, Teresa Maria; Functional morphology of the Ordovician plectambonitoid brachiopod Inversella ( Reinversella ) arancibiai Herrera & Benedetto from the San Juan Formation, Argentine Precordillera; Taylor & Francis Ltd; Alcheringa; 32; 1; 3-2008; 53-63
0311-5518
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/03115510701757373
info:eu-repo/semantics/altIdentifier/doi/10.1080/03115510701757373
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Taylor & Francis Ltd
publisher.none.fl_str_mv Taylor & Francis Ltd
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.22299

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