The antorbital fenestra of Metriorhynchidae (Crocodyliformes, Thalattosuchia): Testing Its homology within a phylogenetic framework

Autores
Leardi, Juan Martín; Pol, Diego; Fernández, Marta S.
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The metriorhynchids crocodyliforms represent the only archosaurs that where fully pelagic and thieved on mesozoic marine enviroments. Consequently to this pelagic lifestyle, the metriorhynchids have many modifications on their skeleton, like reduction of the scutes, modification of the limbs into flippers, hypocercal tails, among others. Recently, inner rostral casts were found, and the development of a nasal salt gland was recognized. This salt gland was proposed to be related to a fenestra located anteriorly to the orbit, previously identified as the antorbital fenestra of the rest of the archosaurs, a structure related to paranasal air sinuses. In our contribution, we test the identity of this fenestra using the available evidence at hand and evaluating our proposals with the evolution of the rest of the features present in these marine crocodyliforms. We recognize this structure as a neomorph of the metriorhynchids, making this fenestra not comparable to the fenestrae located anterior to the orbit in the rest of the archosaurs. The modification of this structure can be interpreted as one of the many changes in this linage associated to the fully adapted marine lifestyle.
Fil: Leardi, Juan Martín. 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: Pol, Diego. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Museo Paleontológico Egidio Feruglio; Argentina
Fil: Fernández, Marta S.. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina
Materia
ANTORBITAL FENESTRA
CROCODYLIFORMES
METRIORHYNCHIDAE
HOMOLOGY
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:11336/257940
Acceder
id CONICETDig_94b663771762ce68929d15e25f567f7f
oai_identifier_str oai:ri.conicet.gov.ar:11336/257940
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The antorbital fenestra of Metriorhynchidae (Crocodyliformes, Thalattosuchia): Testing Its homology within a phylogenetic frameworkLeardi, Juan MartínPol, DiegoFernández, Marta S.ANTORBITAL FENESTRACROCODYLIFORMESMETRIORHYNCHIDAEHOMOLOGYhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The metriorhynchids crocodyliforms represent the only archosaurs that where fully pelagic and thieved on mesozoic marine enviroments. Consequently to this pelagic lifestyle, the metriorhynchids have many modifications on their skeleton, like reduction of the scutes, modification of the limbs into flippers, hypocercal tails, among others. Recently, inner rostral casts were found, and the development of a nasal salt gland was recognized. This salt gland was proposed to be related to a fenestra located anteriorly to the orbit, previously identified as the antorbital fenestra of the rest of the archosaurs, a structure related to paranasal air sinuses. In our contribution, we test the identity of this fenestra using the available evidence at hand and evaluating our proposals with the evolution of the rest of the features present in these marine crocodyliforms. We recognize this structure as a neomorph of the metriorhynchids, making this fenestra not comparable to the fenestrae located anterior to the orbit in the rest of the archosaurs. The modification of this structure can be interpreted as one of the many changes in this linage associated to the fully adapted marine lifestyle.Fil: Leardi, Juan Martín. 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: Pol, Diego. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Museo Paleontológico Egidio Feruglio; ArgentinaFil: Fernández, Marta S.. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; ArgentinaSociety of Vertebrate Paleontology2012-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/257940Leardi, Juan Martín; Pol, Diego; Fernández, Marta S.; The antorbital fenestra of Metriorhynchidae (Crocodyliformes, Thalattosuchia): Testing Its homology within a phylogenetic framework; Society of Vertebrate Paleontology; Journal of Vertebrate Paleontology; 32; 2; 2-2012; 490-4940272-4634CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/full/10.1080/02724634.2012.639421info:eu-repo/semantics/altIdentifier/doi/10.1080/02724634.2012.639421info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:28:04Zoai:ri.conicet.gov.ar:11336/257940instacron: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 10:28:05.111CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The antorbital fenestra of Metriorhynchidae (Crocodyliformes, Thalattosuchia): Testing Its homology within a phylogenetic framework
title The antorbital fenestra of Metriorhynchidae (Crocodyliformes, Thalattosuchia): Testing Its homology within a phylogenetic framework
spellingShingle The antorbital fenestra of Metriorhynchidae (Crocodyliformes, Thalattosuchia): Testing Its homology within a phylogenetic framework
Leardi, Juan Martín
ANTORBITAL FENESTRA
CROCODYLIFORMES
METRIORHYNCHIDAE
HOMOLOGY
title_short The antorbital fenestra of Metriorhynchidae (Crocodyliformes, Thalattosuchia): Testing Its homology within a phylogenetic framework
title_full The antorbital fenestra of Metriorhynchidae (Crocodyliformes, Thalattosuchia): Testing Its homology within a phylogenetic framework
title_fullStr The antorbital fenestra of Metriorhynchidae (Crocodyliformes, Thalattosuchia): Testing Its homology within a phylogenetic framework
title_full_unstemmed The antorbital fenestra of Metriorhynchidae (Crocodyliformes, Thalattosuchia): Testing Its homology within a phylogenetic framework
title_sort The antorbital fenestra of Metriorhynchidae (Crocodyliformes, Thalattosuchia): Testing Its homology within a phylogenetic framework
dc.creator.none.fl_str_mv Leardi, Juan Martín
Pol, Diego
Fernández, Marta S.
author Leardi, Juan Martín
author_facet Leardi, Juan Martín
Pol, Diego
Fernández, Marta S.
author_role author
author2 Pol, Diego
Fernández, Marta S.
author2_role author
author
dc.subject.none.fl_str_mv ANTORBITAL FENESTRA
CROCODYLIFORMES
METRIORHYNCHIDAE
HOMOLOGY
topic ANTORBITAL FENESTRA
CROCODYLIFORMES
METRIORHYNCHIDAE
HOMOLOGY
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The metriorhynchids crocodyliforms represent the only archosaurs that where fully pelagic and thieved on mesozoic marine enviroments. Consequently to this pelagic lifestyle, the metriorhynchids have many modifications on their skeleton, like reduction of the scutes, modification of the limbs into flippers, hypocercal tails, among others. Recently, inner rostral casts were found, and the development of a nasal salt gland was recognized. This salt gland was proposed to be related to a fenestra located anteriorly to the orbit, previously identified as the antorbital fenestra of the rest of the archosaurs, a structure related to paranasal air sinuses. In our contribution, we test the identity of this fenestra using the available evidence at hand and evaluating our proposals with the evolution of the rest of the features present in these marine crocodyliforms. We recognize this structure as a neomorph of the metriorhynchids, making this fenestra not comparable to the fenestrae located anterior to the orbit in the rest of the archosaurs. The modification of this structure can be interpreted as one of the many changes in this linage associated to the fully adapted marine lifestyle.
Fil: Leardi, Juan Martín. 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: Pol, Diego. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Museo Paleontológico Egidio Feruglio; Argentina
Fil: Fernández, Marta S.. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina
description The metriorhynchids crocodyliforms represent the only archosaurs that where fully pelagic and thieved on mesozoic marine enviroments. Consequently to this pelagic lifestyle, the metriorhynchids have many modifications on their skeleton, like reduction of the scutes, modification of the limbs into flippers, hypocercal tails, among others. Recently, inner rostral casts were found, and the development of a nasal salt gland was recognized. This salt gland was proposed to be related to a fenestra located anteriorly to the orbit, previously identified as the antorbital fenestra of the rest of the archosaurs, a structure related to paranasal air sinuses. In our contribution, we test the identity of this fenestra using the available evidence at hand and evaluating our proposals with the evolution of the rest of the features present in these marine crocodyliforms. We recognize this structure as a neomorph of the metriorhynchids, making this fenestra not comparable to the fenestrae located anterior to the orbit in the rest of the archosaurs. The modification of this structure can be interpreted as one of the many changes in this linage associated to the fully adapted marine lifestyle.
publishDate 2012
dc.date.none.fl_str_mv 2012-02
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/11336/257940
Leardi, Juan Martín; Pol, Diego; Fernández, Marta S.; The antorbital fenestra of Metriorhynchidae (Crocodyliformes, Thalattosuchia): Testing Its homology within a phylogenetic framework; Society of Vertebrate Paleontology; Journal of Vertebrate Paleontology; 32; 2; 2-2012; 490-494
0272-4634
CONICET Digital
CONICET
url http://hdl.handle.net/11336/257940
identifier_str_mv Leardi, Juan Martín; Pol, Diego; Fernández, Marta S.; The antorbital fenestra of Metriorhynchidae (Crocodyliformes, Thalattosuchia): Testing Its homology within a phylogenetic framework; Society of Vertebrate Paleontology; Journal of Vertebrate Paleontology; 32; 2; 2-2012; 490-494
0272-4634
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/full/10.1080/02724634.2012.639421
info:eu-repo/semantics/altIdentifier/doi/10.1080/02724634.2012.639421
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
application/pdf
dc.publisher.none.fl_str_mv Society of Vertebrate Paleontology
publisher.none.fl_str_mv Society of Vertebrate Paleontology
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_ 1844614283964448768
score 13.070432

Publicaciones similares