Herradurichnus, Gyrochorte and Daedalus from the Balcarce Formation (Silurian of the Tandilia System, Argentina) revisited

Autores
Pazos, Pablo Jose; Gutiérrez, Carolina; Fernández, Diana Elizabeth
Año de publicación
2016
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
The Balcarce Formation is a tide-dominated unit outcropping in the TandiliaSystem which contains abundant ichnofossils firstly studied by Borrello (1966).Original assignments in the unit like Cruziana and Arthrophycus remainindisputable and suggest a Late Ordovician lower Silurian age. Conversely,others were later reassigned to other ichnogenera. In particular the materialreexamined in the field (Cabo Corrientes locality) received the attention ofPoiré and del Valle (1996) and Seilacher et al. (2003) that introduced newassignments (e.g. Arenicolites, Didymaulichnus, Diplichnites andDiplocraterion). Interestingly, some trace fossils present there were analyzedand also discussed or reassigned in these or other works, sometimesinformally (e.g. Heimdallia and Selenichnites). One unusual case is the materialoriginally assigned to Palaeophycus that was later reassigned to Scolicia,Gyrochorte or Heimdallia. Some field specimens (fig. 1) partially resembleArthrophycus brogniartii but differ in the variable course (winding, irregularor angularly meandering), subtriangular shape, variable width andasymmetrical ribs. These features do not fit in Arthrophycus and probablyneither in the other previously attributed ichnogenera. Herradurichnus isrecorded as the classical horse-shoe form, but also crescent and subtriangularin shape (fig. 2); variable incised forms suggest different producers thanxiphosuran-like animals, probably a worm-like animal. The horizontaldisplacement of the Daedalus examples resembles the activity of siphons (fig.3), like some sections of Hillichnus. Herradurichnus and Didymaulichnus arecross cut by Arthrophycus-like trace fossils. Finally, other trace fossils aremeniscate endichnial forms without walls and showing basal marks.
Fil: Pazos, Pablo Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Gutiérrez, Carolina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Fernández, Diana Elizabeth. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
4th International Congress on Ichnology
Idanha-a-Nova
Portugal
International Ichnological Association
Materia
ICHNOTAXONOMY
LOWER PALEOZOIC
GONDWANA
BALCARCE FORMATION
ARGENTINA
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:11336/244853
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/244853
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Herradurichnus, Gyrochorte and Daedalus from the Balcarce Formation (Silurian of the Tandilia System, Argentina) revisitedPazos, Pablo JoseGutiérrez, CarolinaFernández, Diana ElizabethICHNOTAXONOMYLOWER PALEOZOICGONDWANABALCARCE FORMATIONARGENTINAhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1https://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Balcarce Formation is a tide-dominated unit outcropping in the TandiliaSystem which contains abundant ichnofossils firstly studied by Borrello (1966).Original assignments in the unit like Cruziana and Arthrophycus remainindisputable and suggest a Late Ordovician lower Silurian age. Conversely,others were later reassigned to other ichnogenera. In particular the materialreexamined in the field (Cabo Corrientes locality) received the attention ofPoiré and del Valle (1996) and Seilacher et al. (2003) that introduced newassignments (e.g. Arenicolites, Didymaulichnus, Diplichnites andDiplocraterion). Interestingly, some trace fossils present there were analyzedand also discussed or reassigned in these or other works, sometimesinformally (e.g. Heimdallia and Selenichnites). One unusual case is the materialoriginally assigned to Palaeophycus that was later reassigned to Scolicia,Gyrochorte or Heimdallia. Some field specimens (fig. 1) partially resembleArthrophycus brogniartii but differ in the variable course (winding, irregularor angularly meandering), subtriangular shape, variable width andasymmetrical ribs. These features do not fit in Arthrophycus and probablyneither in the other previously attributed ichnogenera. Herradurichnus isrecorded as the classical horse-shoe form, but also crescent and subtriangularin shape (fig. 2); variable incised forms suggest different producers thanxiphosuran-like animals, probably a worm-like animal. The horizontaldisplacement of the Daedalus examples resembles the activity of siphons (fig.3), like some sections of Hillichnus. Herradurichnus and Didymaulichnus arecross cut by Arthrophycus-like trace fossils. Finally, other trace fossils aremeniscate endichnial forms without walls and showing basal marks.Fil: Pazos, Pablo Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; ArgentinaFil: Gutiérrez, Carolina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Fernández, Diana Elizabeth. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina4th International Congress on IchnologyIdanha-a-NovaPortugalInternational Ichnological AssociationInternational Ichnological Association2016info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectCongresoBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/244853Herradurichnus, Gyrochorte and Daedalus from the Balcarce Formation (Silurian of the Tandilia System, Argentina) revisited; 4th International Congress on Ichnology; Idanha-a-Nova; Portugal; 2016; 104-105978-989-97888-1-7CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.palass.org/meetings-events/future-meetings/4th-international-congresinfo:eu-repo/semantics/altIdentifier/url/https://www.naturtejo.com/ficheiros/conteudos/files/ichnia16livro.pdfInternacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:57:01Zoai:ri.conicet.gov.ar:11336/244853instacron: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 09:57:02.266CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Herradurichnus, Gyrochorte and Daedalus from the Balcarce Formation (Silurian of the Tandilia System, Argentina) revisited
title Herradurichnus, Gyrochorte and Daedalus from the Balcarce Formation (Silurian of the Tandilia System, Argentina) revisited
spellingShingle Herradurichnus, Gyrochorte and Daedalus from the Balcarce Formation (Silurian of the Tandilia System, Argentina) revisited
Pazos, Pablo Jose
ICHNOTAXONOMY
LOWER PALEOZOIC
GONDWANA
BALCARCE FORMATION
ARGENTINA
title_short Herradurichnus, Gyrochorte and Daedalus from the Balcarce Formation (Silurian of the Tandilia System, Argentina) revisited
title_full Herradurichnus, Gyrochorte and Daedalus from the Balcarce Formation (Silurian of the Tandilia System, Argentina) revisited
title_fullStr Herradurichnus, Gyrochorte and Daedalus from the Balcarce Formation (Silurian of the Tandilia System, Argentina) revisited
title_full_unstemmed Herradurichnus, Gyrochorte and Daedalus from the Balcarce Formation (Silurian of the Tandilia System, Argentina) revisited
title_sort Herradurichnus, Gyrochorte and Daedalus from the Balcarce Formation (Silurian of the Tandilia System, Argentina) revisited
dc.creator.none.fl_str_mv Pazos, Pablo Jose
Gutiérrez, Carolina
Fernández, Diana Elizabeth
author Pazos, Pablo Jose
author_facet Pazos, Pablo Jose
Gutiérrez, Carolina
Fernández, Diana Elizabeth
author_role author
author2 Gutiérrez, Carolina
Fernández, Diana Elizabeth
author2_role author
author
dc.subject.none.fl_str_mv ICHNOTAXONOMY
LOWER PALEOZOIC
GONDWANA
BALCARCE FORMATION
ARGENTINA
topic ICHNOTAXONOMY
LOWER PALEOZOIC
GONDWANA
BALCARCE FORMATION
ARGENTINA
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The Balcarce Formation is a tide-dominated unit outcropping in the TandiliaSystem which contains abundant ichnofossils firstly studied by Borrello (1966).Original assignments in the unit like Cruziana and Arthrophycus remainindisputable and suggest a Late Ordovician lower Silurian age. Conversely,others were later reassigned to other ichnogenera. In particular the materialreexamined in the field (Cabo Corrientes locality) received the attention ofPoiré and del Valle (1996) and Seilacher et al. (2003) that introduced newassignments (e.g. Arenicolites, Didymaulichnus, Diplichnites andDiplocraterion). Interestingly, some trace fossils present there were analyzedand also discussed or reassigned in these or other works, sometimesinformally (e.g. Heimdallia and Selenichnites). One unusual case is the materialoriginally assigned to Palaeophycus that was later reassigned to Scolicia,Gyrochorte or Heimdallia. Some field specimens (fig. 1) partially resembleArthrophycus brogniartii but differ in the variable course (winding, irregularor angularly meandering), subtriangular shape, variable width andasymmetrical ribs. These features do not fit in Arthrophycus and probablyneither in the other previously attributed ichnogenera. Herradurichnus isrecorded as the classical horse-shoe form, but also crescent and subtriangularin shape (fig. 2); variable incised forms suggest different producers thanxiphosuran-like animals, probably a worm-like animal. The horizontaldisplacement of the Daedalus examples resembles the activity of siphons (fig.3), like some sections of Hillichnus. Herradurichnus and Didymaulichnus arecross cut by Arthrophycus-like trace fossils. Finally, other trace fossils aremeniscate endichnial forms without walls and showing basal marks.
Fil: Pazos, Pablo Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Gutiérrez, Carolina. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Geológicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Fernández, Diana Elizabeth. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
4th International Congress on Ichnology
Idanha-a-Nova
Portugal
International Ichnological Association
description The Balcarce Formation is a tide-dominated unit outcropping in the TandiliaSystem which contains abundant ichnofossils firstly studied by Borrello (1966).Original assignments in the unit like Cruziana and Arthrophycus remainindisputable and suggest a Late Ordovician lower Silurian age. Conversely,others were later reassigned to other ichnogenera. In particular the materialreexamined in the field (Cabo Corrientes locality) received the attention ofPoiré and del Valle (1996) and Seilacher et al. (2003) that introduced newassignments (e.g. Arenicolites, Didymaulichnus, Diplichnites andDiplocraterion). Interestingly, some trace fossils present there were analyzedand also discussed or reassigned in these or other works, sometimesinformally (e.g. Heimdallia and Selenichnites). One unusual case is the materialoriginally assigned to Palaeophycus that was later reassigned to Scolicia,Gyrochorte or Heimdallia. Some field specimens (fig. 1) partially resembleArthrophycus brogniartii but differ in the variable course (winding, irregularor angularly meandering), subtriangular shape, variable width andasymmetrical ribs. These features do not fit in Arthrophycus and probablyneither in the other previously attributed ichnogenera. Herradurichnus isrecorded as the classical horse-shoe form, but also crescent and subtriangularin shape (fig. 2); variable incised forms suggest different producers thanxiphosuran-like animals, probably a worm-like animal. The horizontaldisplacement of the Daedalus examples resembles the activity of siphons (fig.3), like some sections of Hillichnus. Herradurichnus and Didymaulichnus arecross cut by Arthrophycus-like trace fossils. Finally, other trace fossils aremeniscate endichnial forms without walls and showing basal marks.
publishDate 2016
dc.date.none.fl_str_mv 2016
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Congreso
Book
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/244853
Herradurichnus, Gyrochorte and Daedalus from the Balcarce Formation (Silurian of the Tandilia System, Argentina) revisited; 4th International Congress on Ichnology; Idanha-a-Nova; Portugal; 2016; 104-105
978-989-97888-1-7
CONICET Digital
CONICET
url http://hdl.handle.net/11336/244853
identifier_str_mv Herradurichnus, Gyrochorte and Daedalus from the Balcarce Formation (Silurian of the Tandilia System, Argentina) revisited; 4th International Congress on Ichnology; Idanha-a-Nova; Portugal; 2016; 104-105
978-989-97888-1-7
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.palass.org/meetings-events/future-meetings/4th-international-congres
info:eu-repo/semantics/altIdentifier/url/https://www.naturtejo.com/ficheiros/conteudos/files/ichnia16livro.pdf
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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eu_rights_str_mv openAccess
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dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
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dc.coverage.none.fl_str_mv Internacional
dc.publisher.none.fl_str_mv International Ichnological Association
publisher.none.fl_str_mv International Ichnological Association
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reponame_str CONICET Digital (CONICET)
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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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