Bivalve trace fossils in an early Miocene discontinuity surface in Patagonia, Argentina: Burrowing behavior and implications for ichnotaxonomy at the firmground-hardground divide
- Autores
- Carmona, Noelia Beatriz; Mángano, María Gabriela; Buatois, Luis A.; Ponce, Juan Jose
- Año de publicación
- 2007
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Ichnofossils developed in a firmground at the contact between the middle Eocene-lower Miocene continental Sarmiento Formation and the lower Miocene marine Chenque Formation, in central-eastern Patagonia, Argentina, are assigned to Gastrochaenolites ornatus Kelly and Bromley [Kelly, S.R.A., Bromley, R.G., 1984. Ichnological nomenclature of clavate borings. Palaeontology 27, 793-807.], and interpreted as dwelling structures of suspension-feeding bivalves. These record the activities of pholadids, most likely belonging to the Pholadinae. Bivalves are usually preserved as casts and external molds within the biogenic structures. The details of the internal ornamentation in G. ornatus allow identification of two sets of scratch patterns, permitting comparison with the boring behavior of modern pholadids. In terms of ichnotaxonomy, when the same organism is able both to excavate and to bore, and the excavation technique is identical to the mechanical perforation technique, the same name should be used. Accordingly, Gastrochaenolites, whilst more commonly assigned to bioerosion structures in hard substrates, is herein regarded as available also for bivalve burrows in firm, but unlithified substrates. The firmground studied here represents a co-planar surface of lowstand erosion and transgressive erosion that produced exhumation of deposits belonging to the Sarmiento Formation, providing appropriate conditions for the development of the Glossifungites ichnofacies. Differential erosion of the apertural necks, the heterogeneity of the available casting material, and the wide size range of ichnofossils suggest a complex history of colonization and erosion for this surface.
Fil: Carmona, Noelia Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina
Fil: Mángano, María Gabriela. University Of Saskatchewan. Department Geological Sciences;
Fil: Buatois, Luis A.. University Of Saskatchewan. Department Geological Sciences;
Fil: Ponce, Juan Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina - Materia
-
BIOTURBATION
BIVALVES
FIRMGROUND
GLOSSIFUNGITES ICHNOFACIES
PATAGONIA
PHOLADIDAE - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/151639
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network_name_str |
CONICET Digital (CONICET) |
spelling |
Bivalve trace fossils in an early Miocene discontinuity surface in Patagonia, Argentina: Burrowing behavior and implications for ichnotaxonomy at the firmground-hardground divideCarmona, Noelia BeatrizMángano, María GabrielaBuatois, Luis A.Ponce, Juan JoseBIOTURBATIONBIVALVESFIRMGROUNDGLOSSIFUNGITES ICHNOFACIESPATAGONIAPHOLADIDAEhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Ichnofossils developed in a firmground at the contact between the middle Eocene-lower Miocene continental Sarmiento Formation and the lower Miocene marine Chenque Formation, in central-eastern Patagonia, Argentina, are assigned to Gastrochaenolites ornatus Kelly and Bromley [Kelly, S.R.A., Bromley, R.G., 1984. Ichnological nomenclature of clavate borings. Palaeontology 27, 793-807.], and interpreted as dwelling structures of suspension-feeding bivalves. These record the activities of pholadids, most likely belonging to the Pholadinae. Bivalves are usually preserved as casts and external molds within the biogenic structures. The details of the internal ornamentation in G. ornatus allow identification of two sets of scratch patterns, permitting comparison with the boring behavior of modern pholadids. In terms of ichnotaxonomy, when the same organism is able both to excavate and to bore, and the excavation technique is identical to the mechanical perforation technique, the same name should be used. Accordingly, Gastrochaenolites, whilst more commonly assigned to bioerosion structures in hard substrates, is herein regarded as available also for bivalve burrows in firm, but unlithified substrates. The firmground studied here represents a co-planar surface of lowstand erosion and transgressive erosion that produced exhumation of deposits belonging to the Sarmiento Formation, providing appropriate conditions for the development of the Glossifungites ichnofacies. Differential erosion of the apertural necks, the heterogeneity of the available casting material, and the wide size range of ichnofossils suggest a complex history of colonization and erosion for this surface.Fil: Carmona, Noelia Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaFil: Mángano, María Gabriela. University Of Saskatchewan. Department Geological Sciences;Fil: Buatois, Luis A.. University Of Saskatchewan. Department Geological Sciences;Fil: Ponce, Juan Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; ArgentinaElsevier Science2007-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/151639Carmona, Noelia Beatriz; Mángano, María Gabriela; Buatois, Luis A.; Ponce, Juan Jose; Bivalve trace fossils in an early Miocene discontinuity surface in Patagonia, Argentina: Burrowing behavior and implications for ichnotaxonomy at the firmground-hardground divide; Elsevier Science; Palaeogeography, Palaeoclimatology, Palaeoecology; 255; 3-4; 11-2007; 329-3410031-0182CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0031018207004105info:eu-repo/semantics/altIdentifier/doi/10.1016/j.palaeo.2007.07.014info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:42:21Zoai:ri.conicet.gov.ar:11336/151639instacron: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 09:42:21.911CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Bivalve trace fossils in an early Miocene discontinuity surface in Patagonia, Argentina: Burrowing behavior and implications for ichnotaxonomy at the firmground-hardground divide |
title |
Bivalve trace fossils in an early Miocene discontinuity surface in Patagonia, Argentina: Burrowing behavior and implications for ichnotaxonomy at the firmground-hardground divide |
spellingShingle |
Bivalve trace fossils in an early Miocene discontinuity surface in Patagonia, Argentina: Burrowing behavior and implications for ichnotaxonomy at the firmground-hardground divide Carmona, Noelia Beatriz BIOTURBATION BIVALVES FIRMGROUND GLOSSIFUNGITES ICHNOFACIES PATAGONIA PHOLADIDAE |
title_short |
Bivalve trace fossils in an early Miocene discontinuity surface in Patagonia, Argentina: Burrowing behavior and implications for ichnotaxonomy at the firmground-hardground divide |
title_full |
Bivalve trace fossils in an early Miocene discontinuity surface in Patagonia, Argentina: Burrowing behavior and implications for ichnotaxonomy at the firmground-hardground divide |
title_fullStr |
Bivalve trace fossils in an early Miocene discontinuity surface in Patagonia, Argentina: Burrowing behavior and implications for ichnotaxonomy at the firmground-hardground divide |
title_full_unstemmed |
Bivalve trace fossils in an early Miocene discontinuity surface in Patagonia, Argentina: Burrowing behavior and implications for ichnotaxonomy at the firmground-hardground divide |
title_sort |
Bivalve trace fossils in an early Miocene discontinuity surface in Patagonia, Argentina: Burrowing behavior and implications for ichnotaxonomy at the firmground-hardground divide |
dc.creator.none.fl_str_mv |
Carmona, Noelia Beatriz Mángano, María Gabriela Buatois, Luis A. Ponce, Juan Jose |
author |
Carmona, Noelia Beatriz |
author_facet |
Carmona, Noelia Beatriz Mángano, María Gabriela Buatois, Luis A. Ponce, Juan Jose |
author_role |
author |
author2 |
Mángano, María Gabriela Buatois, Luis A. Ponce, Juan Jose |
author2_role |
author author author |
dc.subject.none.fl_str_mv |
BIOTURBATION BIVALVES FIRMGROUND GLOSSIFUNGITES ICHNOFACIES PATAGONIA PHOLADIDAE |
topic |
BIOTURBATION BIVALVES FIRMGROUND GLOSSIFUNGITES ICHNOFACIES PATAGONIA PHOLADIDAE |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Ichnofossils developed in a firmground at the contact between the middle Eocene-lower Miocene continental Sarmiento Formation and the lower Miocene marine Chenque Formation, in central-eastern Patagonia, Argentina, are assigned to Gastrochaenolites ornatus Kelly and Bromley [Kelly, S.R.A., Bromley, R.G., 1984. Ichnological nomenclature of clavate borings. Palaeontology 27, 793-807.], and interpreted as dwelling structures of suspension-feeding bivalves. These record the activities of pholadids, most likely belonging to the Pholadinae. Bivalves are usually preserved as casts and external molds within the biogenic structures. The details of the internal ornamentation in G. ornatus allow identification of two sets of scratch patterns, permitting comparison with the boring behavior of modern pholadids. In terms of ichnotaxonomy, when the same organism is able both to excavate and to bore, and the excavation technique is identical to the mechanical perforation technique, the same name should be used. Accordingly, Gastrochaenolites, whilst more commonly assigned to bioerosion structures in hard substrates, is herein regarded as available also for bivalve burrows in firm, but unlithified substrates. The firmground studied here represents a co-planar surface of lowstand erosion and transgressive erosion that produced exhumation of deposits belonging to the Sarmiento Formation, providing appropriate conditions for the development of the Glossifungites ichnofacies. Differential erosion of the apertural necks, the heterogeneity of the available casting material, and the wide size range of ichnofossils suggest a complex history of colonization and erosion for this surface. Fil: Carmona, Noelia Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina Fil: Mángano, María Gabriela. University Of Saskatchewan. Department Geological Sciences; Fil: Buatois, Luis A.. University Of Saskatchewan. Department Geological Sciences; Fil: Ponce, Juan Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Austral de Investigaciones Científicas; Argentina |
description |
Ichnofossils developed in a firmground at the contact between the middle Eocene-lower Miocene continental Sarmiento Formation and the lower Miocene marine Chenque Formation, in central-eastern Patagonia, Argentina, are assigned to Gastrochaenolites ornatus Kelly and Bromley [Kelly, S.R.A., Bromley, R.G., 1984. Ichnological nomenclature of clavate borings. Palaeontology 27, 793-807.], and interpreted as dwelling structures of suspension-feeding bivalves. These record the activities of pholadids, most likely belonging to the Pholadinae. Bivalves are usually preserved as casts and external molds within the biogenic structures. The details of the internal ornamentation in G. ornatus allow identification of two sets of scratch patterns, permitting comparison with the boring behavior of modern pholadids. In terms of ichnotaxonomy, when the same organism is able both to excavate and to bore, and the excavation technique is identical to the mechanical perforation technique, the same name should be used. Accordingly, Gastrochaenolites, whilst more commonly assigned to bioerosion structures in hard substrates, is herein regarded as available also for bivalve burrows in firm, but unlithified substrates. The firmground studied here represents a co-planar surface of lowstand erosion and transgressive erosion that produced exhumation of deposits belonging to the Sarmiento Formation, providing appropriate conditions for the development of the Glossifungites ichnofacies. Differential erosion of the apertural necks, the heterogeneity of the available casting material, and the wide size range of ichnofossils suggest a complex history of colonization and erosion for this surface. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-11 |
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/11336/151639 Carmona, Noelia Beatriz; Mángano, María Gabriela; Buatois, Luis A.; Ponce, Juan Jose; Bivalve trace fossils in an early Miocene discontinuity surface in Patagonia, Argentina: Burrowing behavior and implications for ichnotaxonomy at the firmground-hardground divide; Elsevier Science; Palaeogeography, Palaeoclimatology, Palaeoecology; 255; 3-4; 11-2007; 329-341 0031-0182 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/151639 |
identifier_str_mv |
Carmona, Noelia Beatriz; Mángano, María Gabriela; Buatois, Luis A.; Ponce, Juan Jose; Bivalve trace fossils in an early Miocene discontinuity surface in Patagonia, Argentina: Burrowing behavior and implications for ichnotaxonomy at the firmground-hardground divide; Elsevier Science; Palaeogeography, Palaeoclimatology, Palaeoecology; 255; 3-4; 11-2007; 329-341 0031-0182 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.sciencedirect.com/science/article/pii/S0031018207004105 info:eu-repo/semantics/altIdentifier/doi/10.1016/j.palaeo.2007.07.014 |
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 application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier Science |
publisher.none.fl_str_mv |
Elsevier Science |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
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Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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1844613334926622720 |
score |
13.070432 |