Reassessment of the spinose polytoechiid brachiopod pinatotoechia Benedetto from the Lower Ordovician of western Argentina

Autores
Benedetto, Juan Luis Arnaldo
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
PINATOECHIA (type species Pinatotoechia acantha Benedetto) is a peculiar spinose polytoechiid hitherto confined to the Famatina-Puna volcanic-arc system fringing the Andean margin of Gondwana during the Ordovician. This genus was described originally from the volcanosedimentary Aguada de la Perdiz Formation exposed west of Salar del Rincón in the Puna region of NW Argentina, a few kilometers from the international border with Chile. According to the associated trilobites as well as the graptolites from correlatable units, the age of these beds is latest Floian-early Dapingian. New and better preserved specimens of Pinatotoechia acantha were subsequently collected from the nearly coeval volcaniclastic Suri Formation of the Famatina Range (Benedetto, 2003). Rubel (2007), in the supplement of the revised Treatise, put in synonymy Pinatotoechia Benedetto with Tritoechia Ulrich and Cooper arguing that the spines of the former are, in fact, identical to the aditicules of the type species Tritoechia typica (Schuchert and Cooper, 1932). The purpose of this paper is to present conclusive evidence on the presence of true hollow spines erected on the tops of costellae in order to support the validity of the genus and to improve its description and illustration. Likewise, the ventral interior of Pinatotoechia is redescribed and reillustrated to show that its pseudospondylium and ventral muscle pattern clearly differ from those of Tritoechia.
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
Materia
Braquiópodos
Famatina
Taxonomía
Ordovícico
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:11336/130874
Acceder
id CONICETDig_90b9a2009d4905799854858210fb9bae
oai_identifier_str oai:ri.conicet.gov.ar:11336/130874
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Reassessment of the spinose polytoechiid brachiopod pinatotoechia Benedetto from the Lower Ordovician of western ArgentinaBenedetto, Juan Luis ArnaldoBraquiópodosFamatinaTaxonomíaOrdovícicohttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1PINATOECHIA (type species Pinatotoechia acantha Benedetto) is a peculiar spinose polytoechiid hitherto confined to the Famatina-Puna volcanic-arc system fringing the Andean margin of Gondwana during the Ordovician. This genus was described originally from the volcanosedimentary Aguada de la Perdiz Formation exposed west of Salar del Rincón in the Puna region of NW Argentina, a few kilometers from the international border with Chile. According to the associated trilobites as well as the graptolites from correlatable units, the age of these beds is latest Floian-early Dapingian. New and better preserved specimens of Pinatotoechia acantha were subsequently collected from the nearly coeval volcaniclastic Suri Formation of the Famatina Range (Benedetto, 2003). Rubel (2007), in the supplement of the revised Treatise, put in synonymy Pinatotoechia Benedetto with Tritoechia Ulrich and Cooper arguing that the spines of the former are, in fact, identical to the aditicules of the type species Tritoechia typica (Schuchert and Cooper, 1932). The purpose of this paper is to present conclusive evidence on the presence of true hollow spines erected on the tops of costellae in order to support the validity of the genus and to improve its description and illustration. Likewise, the ventral interior of Pinatotoechia is redescribed and reillustrated to show that its pseudospondylium and ventral muscle pattern clearly differ from those of Tritoechia.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; ArgentinaAsociación Paleontológica Argentina2016-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/130874Benedetto, Juan Luis Arnaldo; Reassessment of the spinose polytoechiid brachiopod pinatotoechia Benedetto from the Lower Ordovician of western Argentina; Asociación Paleontológica Argentina; Ameghiniana; 53; 4; 2-2016; 506-5110002-70141851-8044CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.5710/AMGH.02.02.2016.2971info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:34:47Zoai:ri.conicet.gov.ar:11336/130874instacron: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:34982025-09-29 09:34:47.298CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Reassessment of the spinose polytoechiid brachiopod pinatotoechia Benedetto from the Lower Ordovician of western Argentina
title Reassessment of the spinose polytoechiid brachiopod pinatotoechia Benedetto from the Lower Ordovician of western Argentina
spellingShingle Reassessment of the spinose polytoechiid brachiopod pinatotoechia Benedetto from the Lower Ordovician of western Argentina
Benedetto, Juan Luis Arnaldo
Braquiópodos
Famatina
Taxonomía
Ordovícico
title_short Reassessment of the spinose polytoechiid brachiopod pinatotoechia Benedetto from the Lower Ordovician of western Argentina
title_full Reassessment of the spinose polytoechiid brachiopod pinatotoechia Benedetto from the Lower Ordovician of western Argentina
title_fullStr Reassessment of the spinose polytoechiid brachiopod pinatotoechia Benedetto from the Lower Ordovician of western Argentina
title_full_unstemmed Reassessment of the spinose polytoechiid brachiopod pinatotoechia Benedetto from the Lower Ordovician of western Argentina
title_sort Reassessment of the spinose polytoechiid brachiopod pinatotoechia Benedetto from the Lower Ordovician of western Argentina
dc.creator.none.fl_str_mv Benedetto, Juan Luis Arnaldo
author Benedetto, Juan Luis Arnaldo
author_facet Benedetto, Juan Luis Arnaldo
author_role author
dc.subject.none.fl_str_mv Braquiópodos
Famatina
Taxonomía
Ordovícico
topic Braquiópodos
Famatina
Taxonomía
Ordovícico
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv PINATOECHIA (type species Pinatotoechia acantha Benedetto) is a peculiar spinose polytoechiid hitherto confined to the Famatina-Puna volcanic-arc system fringing the Andean margin of Gondwana during the Ordovician. This genus was described originally from the volcanosedimentary Aguada de la Perdiz Formation exposed west of Salar del Rincón in the Puna region of NW Argentina, a few kilometers from the international border with Chile. According to the associated trilobites as well as the graptolites from correlatable units, the age of these beds is latest Floian-early Dapingian. New and better preserved specimens of Pinatotoechia acantha were subsequently collected from the nearly coeval volcaniclastic Suri Formation of the Famatina Range (Benedetto, 2003). Rubel (2007), in the supplement of the revised Treatise, put in synonymy Pinatotoechia Benedetto with Tritoechia Ulrich and Cooper arguing that the spines of the former are, in fact, identical to the aditicules of the type species Tritoechia typica (Schuchert and Cooper, 1932). The purpose of this paper is to present conclusive evidence on the presence of true hollow spines erected on the tops of costellae in order to support the validity of the genus and to improve its description and illustration. Likewise, the ventral interior of Pinatotoechia is redescribed and reillustrated to show that its pseudospondylium and ventral muscle pattern clearly differ from those of Tritoechia.
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
description PINATOECHIA (type species Pinatotoechia acantha Benedetto) is a peculiar spinose polytoechiid hitherto confined to the Famatina-Puna volcanic-arc system fringing the Andean margin of Gondwana during the Ordovician. This genus was described originally from the volcanosedimentary Aguada de la Perdiz Formation exposed west of Salar del Rincón in the Puna region of NW Argentina, a few kilometers from the international border with Chile. According to the associated trilobites as well as the graptolites from correlatable units, the age of these beds is latest Floian-early Dapingian. New and better preserved specimens of Pinatotoechia acantha were subsequently collected from the nearly coeval volcaniclastic Suri Formation of the Famatina Range (Benedetto, 2003). Rubel (2007), in the supplement of the revised Treatise, put in synonymy Pinatotoechia Benedetto with Tritoechia Ulrich and Cooper arguing that the spines of the former are, in fact, identical to the aditicules of the type species Tritoechia typica (Schuchert and Cooper, 1932). The purpose of this paper is to present conclusive evidence on the presence of true hollow spines erected on the tops of costellae in order to support the validity of the genus and to improve its description and illustration. Likewise, the ventral interior of Pinatotoechia is redescribed and reillustrated to show that its pseudospondylium and ventral muscle pattern clearly differ from those of Tritoechia.
publishDate 2016
dc.date.none.fl_str_mv 2016-02
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/11336/130874
Benedetto, Juan Luis Arnaldo; Reassessment of the spinose polytoechiid brachiopod pinatotoechia Benedetto from the Lower Ordovician of western Argentina; Asociación Paleontológica Argentina; Ameghiniana; 53; 4; 2-2016; 506-511
0002-7014
1851-8044
CONICET Digital
CONICET
url http://hdl.handle.net/11336/130874
identifier_str_mv Benedetto, Juan Luis Arnaldo; Reassessment of the spinose polytoechiid brachiopod pinatotoechia Benedetto from the Lower Ordovician of western Argentina; Asociación Paleontológica Argentina; Ameghiniana; 53; 4; 2-2016; 506-511
0002-7014
1851-8044
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.5710/AMGH.02.02.2016.2971
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 Asociación Paleontológica Argentina
publisher.none.fl_str_mv Asociación Paleontológica Argentina
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
_version_ 1844613078761603072
score 13.070432

Publicaciones similares