Three dimensional angel shark jaw elements (Elasmobranchii, Squatinidae) from the Miocene of Southern Argentina

Autores
Cabrera, Daniel Alfredo; Cione, Alberto Luis; Cozzuol, Mario Alberto
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Endoskeletal fossil remains of sharks are rare due to its cartilaginous nature. Great part of the skeleton is tessellated cartilage, comprised of a cortex of mineralized blocks called tesserae, lying just beneath the fibrous perichondrium and overlying a core of unmineralized extracellular matrix. The preservation of cartilage is not very common, particular conditions are needed. The most common elements found in the fossil record are teeth; scales and vertebrae, because they are more resistant to taphonomic processes than others. In this contribution, we report an elasmobranch fossil jaw found in Late Miocene strata of the Puerto Madryn Formation, cropping out near the city of Puerto Madryn (65°06?W, 42°46?S). The material consists of a right incomplete palatoquadrate and a right fragmentary Meckel's cartilage. In both, the central core is completely filled by a sandy matrix and the tessellated tissue is very well preserved, indicating minimal transportation and rapid burial. The general morphology and the presence of a small and triangular dorsal process in the palatoquadrate, allow us to assign it to the genus Squatina Dumeril. Although teeth of Squatina sp. have already been recorded from Puerto Madryn Formation as well as in the Late Miocene Paraná Formation, this finding represents the first record of endoskeletal fossil remains of elasmobranchs from the Cenozoic of Argentina.
Fil: Cabrera, Daniel Alfredo. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Cione, Alberto Luis. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Cozzuol, Mario Alberto. Universidade Federal de Minas Gerais; Brasil
Materia
Squatina
Neogene
Patagonia
Taphonomy
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/273324
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Three dimensional angel shark jaw elements (Elasmobranchii, Squatinidae) from the Miocene of Southern ArgentinaCabrera, Daniel AlfredoCione, Alberto LuisCozzuol, Mario AlbertoSquatinaNeogenePatagoniaTaphonomyhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Endoskeletal fossil remains of sharks are rare due to its cartilaginous nature. Great part of the skeleton is tessellated cartilage, comprised of a cortex of mineralized blocks called tesserae, lying just beneath the fibrous perichondrium and overlying a core of unmineralized extracellular matrix. The preservation of cartilage is not very common, particular conditions are needed. The most common elements found in the fossil record are teeth; scales and vertebrae, because they are more resistant to taphonomic processes than others. In this contribution, we report an elasmobranch fossil jaw found in Late Miocene strata of the Puerto Madryn Formation, cropping out near the city of Puerto Madryn (65°06?W, 42°46?S). The material consists of a right incomplete palatoquadrate and a right fragmentary Meckel's cartilage. In both, the central core is completely filled by a sandy matrix and the tessellated tissue is very well preserved, indicating minimal transportation and rapid burial. The general morphology and the presence of a small and triangular dorsal process in the palatoquadrate, allow us to assign it to the genus Squatina Dumeril. Although teeth of Squatina sp. have already been recorded from Puerto Madryn Formation as well as in the Late Miocene Paraná Formation, this finding represents the first record of endoskeletal fossil remains of elasmobranchs from the Cenozoic of Argentina.Fil: Cabrera, Daniel Alfredo. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Cione, Alberto Luis. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Cozzuol, Mario Alberto. Universidade Federal de Minas Gerais; BrasilAsociación Paleontológica Argentina2012-03info: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/11336/273324Cabrera, Daniel Alfredo; Cione, Alberto Luis; Cozzuol, Mario Alberto; Three dimensional angel shark jaw elements (Elasmobranchii, Squatinidae) from the Miocene of Southern Argentina; Asociación Paleontológica Argentina; Ameghiniana; 49; 1; 3-2012; 113-1180002-70141851-8044CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/469/1067info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2026-04-15T10:48:33Zoai:ri.conicet.gov.ar:11336/273324instacron: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:34982026-04-15 10:48:34.254CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Three dimensional angel shark jaw elements (Elasmobranchii, Squatinidae) from the Miocene of Southern Argentina
title Three dimensional angel shark jaw elements (Elasmobranchii, Squatinidae) from the Miocene of Southern Argentina
spellingShingle Three dimensional angel shark jaw elements (Elasmobranchii, Squatinidae) from the Miocene of Southern Argentina
Cabrera, Daniel Alfredo
Squatina
Neogene
Patagonia
Taphonomy
title_short Three dimensional angel shark jaw elements (Elasmobranchii, Squatinidae) from the Miocene of Southern Argentina
title_full Three dimensional angel shark jaw elements (Elasmobranchii, Squatinidae) from the Miocene of Southern Argentina
title_fullStr Three dimensional angel shark jaw elements (Elasmobranchii, Squatinidae) from the Miocene of Southern Argentina
title_full_unstemmed Three dimensional angel shark jaw elements (Elasmobranchii, Squatinidae) from the Miocene of Southern Argentina
title_sort Three dimensional angel shark jaw elements (Elasmobranchii, Squatinidae) from the Miocene of Southern Argentina
dc.creator.none.fl_str_mv Cabrera, Daniel Alfredo
Cione, Alberto Luis
Cozzuol, Mario Alberto
author Cabrera, Daniel Alfredo
author_facet Cabrera, Daniel Alfredo
Cione, Alberto Luis
Cozzuol, Mario Alberto
author_role author
author2 Cione, Alberto Luis
Cozzuol, Mario Alberto
author2_role author
author
dc.subject.none.fl_str_mv Squatina
Neogene
Patagonia
Taphonomy
topic Squatina
Neogene
Patagonia
Taphonomy
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Endoskeletal fossil remains of sharks are rare due to its cartilaginous nature. Great part of the skeleton is tessellated cartilage, comprised of a cortex of mineralized blocks called tesserae, lying just beneath the fibrous perichondrium and overlying a core of unmineralized extracellular matrix. The preservation of cartilage is not very common, particular conditions are needed. The most common elements found in the fossil record are teeth; scales and vertebrae, because they are more resistant to taphonomic processes than others. In this contribution, we report an elasmobranch fossil jaw found in Late Miocene strata of the Puerto Madryn Formation, cropping out near the city of Puerto Madryn (65°06?W, 42°46?S). The material consists of a right incomplete palatoquadrate and a right fragmentary Meckel's cartilage. In both, the central core is completely filled by a sandy matrix and the tessellated tissue is very well preserved, indicating minimal transportation and rapid burial. The general morphology and the presence of a small and triangular dorsal process in the palatoquadrate, allow us to assign it to the genus Squatina Dumeril. Although teeth of Squatina sp. have already been recorded from Puerto Madryn Formation as well as in the Late Miocene Paraná Formation, this finding represents the first record of endoskeletal fossil remains of elasmobranchs from the Cenozoic of Argentina.
Fil: Cabrera, Daniel Alfredo. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Cione, Alberto Luis. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Cozzuol, Mario Alberto. Universidade Federal de Minas Gerais; Brasil
description Endoskeletal fossil remains of sharks are rare due to its cartilaginous nature. Great part of the skeleton is tessellated cartilage, comprised of a cortex of mineralized blocks called tesserae, lying just beneath the fibrous perichondrium and overlying a core of unmineralized extracellular matrix. The preservation of cartilage is not very common, particular conditions are needed. The most common elements found in the fossil record are teeth; scales and vertebrae, because they are more resistant to taphonomic processes than others. In this contribution, we report an elasmobranch fossil jaw found in Late Miocene strata of the Puerto Madryn Formation, cropping out near the city of Puerto Madryn (65°06?W, 42°46?S). The material consists of a right incomplete palatoquadrate and a right fragmentary Meckel's cartilage. In both, the central core is completely filled by a sandy matrix and the tessellated tissue is very well preserved, indicating minimal transportation and rapid burial. The general morphology and the presence of a small and triangular dorsal process in the palatoquadrate, allow us to assign it to the genus Squatina Dumeril. Although teeth of Squatina sp. have already been recorded from Puerto Madryn Formation as well as in the Late Miocene Paraná Formation, this finding represents the first record of endoskeletal fossil remains of elasmobranchs from the Cenozoic of Argentina.
publishDate 2012
dc.date.none.fl_str_mv 2012-03
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/11336/273324
Cabrera, Daniel Alfredo; Cione, Alberto Luis; Cozzuol, Mario Alberto; Three dimensional angel shark jaw elements (Elasmobranchii, Squatinidae) from the Miocene of Southern Argentina; Asociación Paleontológica Argentina; Ameghiniana; 49; 1; 3-2012; 113-118
0002-7014
1851-8044
CONICET Digital
CONICET
url http://hdl.handle.net/11336/273324
identifier_str_mv Cabrera, Daniel Alfredo; Cione, Alberto Luis; Cozzuol, Mario Alberto; Three dimensional angel shark jaw elements (Elasmobranchii, Squatinidae) from the Miocene of Southern Argentina; Asociación Paleontológica Argentina; Ameghiniana; 49; 1; 3-2012; 113-118
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/url/http://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/469/1067
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
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_ 1862633822879744000
score 13.203462

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