Dinosaur origins: evidence from the footprint record

Autores
Marsicano, Claudia Alicia; Domnanovich, Nadia Sonia; Mancuso, Adriana Cecilia
Año de publicación
2007
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Triassic tracks and trackways assigned to dinosaur trackmakers or closest relatives have been mentioned from several Middle to the latest Triassic successions from both northern and southern Pangea. At present, the earliest gondwanan records are those from the Middle Triassic Los Rastros Formation in west-central Argentina. A reanalysis of Los Rastros ichnites at the Ischichuca area, including new material, has revealed the presence of a more diverse ichnofauna than previously suspected. The ichnocoenosis includes several tracks and trackways of bipeds with functionally tridactyl digitigrade pes, well developed claws, and a parasagittal posture of the hindlimbs. Previously, some large tridactyl footprints from the Ischichuca area were allied to theropod dinosaurs, although no synapomophies are preserved in the three-toed footprints that might discriminate among theropods, basal saurischians and basal ornithischian groups as their possible trackmakers. If the Ischichuca trackmakers are referred to a dinosaur taxon and/or to a close dinosaur sister-taxon, their presence in the Los Rastros levels suggests that derived dinosauriforms (including dinosaurs) had diverged and acquired their characteristic functionally tridactyl pes by at least the Middle Triassic, something that the body-fossil record has failed to document to date.
Fil: Marsicano, Claudia Alicia. Universidad de Buenos Aires; Argentina
Fil: Domnanovich, Nadia Sonia. Universidad de Buenos Aires; Argentina
Fil: Mancuso, Adriana Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina
Materia
ARGENTINA
DINOSAURIA
FOOTPRINTS
LOS RASTROS FORMATION
TRIASSIC
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:11336/92894
Acceder
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spelling Dinosaur origins: evidence from the footprint recordMarsicano, Claudia AliciaDomnanovich, Nadia SoniaMancuso, Adriana CeciliaARGENTINADINOSAURIAFOOTPRINTSLOS RASTROS FORMATIONTRIASSIChttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Triassic tracks and trackways assigned to dinosaur trackmakers or closest relatives have been mentioned from several Middle to the latest Triassic successions from both northern and southern Pangea. At present, the earliest gondwanan records are those from the Middle Triassic Los Rastros Formation in west-central Argentina. A reanalysis of Los Rastros ichnites at the Ischichuca area, including new material, has revealed the presence of a more diverse ichnofauna than previously suspected. The ichnocoenosis includes several tracks and trackways of bipeds with functionally tridactyl digitigrade pes, well developed claws, and a parasagittal posture of the hindlimbs. Previously, some large tridactyl footprints from the Ischichuca area were allied to theropod dinosaurs, although no synapomophies are preserved in the three-toed footprints that might discriminate among theropods, basal saurischians and basal ornithischian groups as their possible trackmakers. If the Ischichuca trackmakers are referred to a dinosaur taxon and/or to a close dinosaur sister-taxon, their presence in the Los Rastros levels suggests that derived dinosauriforms (including dinosaurs) had diverged and acquired their characteristic functionally tridactyl pes by at least the Middle Triassic, something that the body-fossil record has failed to document to date.Fil: Marsicano, Claudia Alicia. Universidad de Buenos Aires; ArgentinaFil: Domnanovich, Nadia Sonia. Universidad de Buenos Aires; ArgentinaFil: Mancuso, Adriana Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; ArgentinaTaylor & Francis2007-03info: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/11336/92894Marsicano, Claudia Alicia; Domnanovich, Nadia Sonia; Mancuso, Adriana Cecilia; Dinosaur origins: evidence from the footprint record; Taylor & Francis; Historical Biology; 19; 1; 3-2007; 83-911029-2381CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1080/08912960600866920info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/08912960600866920info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:16:47Zoai:ri.conicet.gov.ar:11336/92894instacron: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:34982025-09-10 13:16:47.791CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Dinosaur origins: evidence from the footprint record
title Dinosaur origins: evidence from the footprint record
spellingShingle Dinosaur origins: evidence from the footprint record
Marsicano, Claudia Alicia
ARGENTINA
DINOSAURIA
FOOTPRINTS
LOS RASTROS FORMATION
TRIASSIC
title_short Dinosaur origins: evidence from the footprint record
title_full Dinosaur origins: evidence from the footprint record
title_fullStr Dinosaur origins: evidence from the footprint record
title_full_unstemmed Dinosaur origins: evidence from the footprint record
title_sort Dinosaur origins: evidence from the footprint record
dc.creator.none.fl_str_mv Marsicano, Claudia Alicia
Domnanovich, Nadia Sonia
Mancuso, Adriana Cecilia
author Marsicano, Claudia Alicia
author_facet Marsicano, Claudia Alicia
Domnanovich, Nadia Sonia
Mancuso, Adriana Cecilia
author_role author
author2 Domnanovich, Nadia Sonia
Mancuso, Adriana Cecilia
author2_role author
author
dc.subject.none.fl_str_mv ARGENTINA
DINOSAURIA
FOOTPRINTS
LOS RASTROS FORMATION
TRIASSIC
topic ARGENTINA
DINOSAURIA
FOOTPRINTS
LOS RASTROS FORMATION
TRIASSIC
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Triassic tracks and trackways assigned to dinosaur trackmakers or closest relatives have been mentioned from several Middle to the latest Triassic successions from both northern and southern Pangea. At present, the earliest gondwanan records are those from the Middle Triassic Los Rastros Formation in west-central Argentina. A reanalysis of Los Rastros ichnites at the Ischichuca area, including new material, has revealed the presence of a more diverse ichnofauna than previously suspected. The ichnocoenosis includes several tracks and trackways of bipeds with functionally tridactyl digitigrade pes, well developed claws, and a parasagittal posture of the hindlimbs. Previously, some large tridactyl footprints from the Ischichuca area were allied to theropod dinosaurs, although no synapomophies are preserved in the three-toed footprints that might discriminate among theropods, basal saurischians and basal ornithischian groups as their possible trackmakers. If the Ischichuca trackmakers are referred to a dinosaur taxon and/or to a close dinosaur sister-taxon, their presence in the Los Rastros levels suggests that derived dinosauriforms (including dinosaurs) had diverged and acquired their characteristic functionally tridactyl pes by at least the Middle Triassic, something that the body-fossil record has failed to document to date.
Fil: Marsicano, Claudia Alicia. Universidad de Buenos Aires; Argentina
Fil: Domnanovich, Nadia Sonia. Universidad de Buenos Aires; Argentina
Fil: Mancuso, Adriana Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza; Argentina
description Triassic tracks and trackways assigned to dinosaur trackmakers or closest relatives have been mentioned from several Middle to the latest Triassic successions from both northern and southern Pangea. At present, the earliest gondwanan records are those from the Middle Triassic Los Rastros Formation in west-central Argentina. A reanalysis of Los Rastros ichnites at the Ischichuca area, including new material, has revealed the presence of a more diverse ichnofauna than previously suspected. The ichnocoenosis includes several tracks and trackways of bipeds with functionally tridactyl digitigrade pes, well developed claws, and a parasagittal posture of the hindlimbs. Previously, some large tridactyl footprints from the Ischichuca area were allied to theropod dinosaurs, although no synapomophies are preserved in the three-toed footprints that might discriminate among theropods, basal saurischians and basal ornithischian groups as their possible trackmakers. If the Ischichuca trackmakers are referred to a dinosaur taxon and/or to a close dinosaur sister-taxon, their presence in the Los Rastros levels suggests that derived dinosauriforms (including dinosaurs) had diverged and acquired their characteristic functionally tridactyl pes by at least the Middle Triassic, something that the body-fossil record has failed to document to date.
publishDate 2007
dc.date.none.fl_str_mv 2007-03
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/11336/92894
Marsicano, Claudia Alicia; Domnanovich, Nadia Sonia; Mancuso, Adriana Cecilia; Dinosaur origins: evidence from the footprint record; Taylor & Francis; Historical Biology; 19; 1; 3-2007; 83-91
1029-2381
CONICET Digital
CONICET
url http://hdl.handle.net/11336/92894
identifier_str_mv Marsicano, Claudia Alicia; Domnanovich, Nadia Sonia; Mancuso, Adriana Cecilia; Dinosaur origins: evidence from the footprint record; Taylor & Francis; Historical Biology; 19; 1; 3-2007; 83-91
1029-2381
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1080/08912960600866920
info:eu-repo/semantics/altIdentifier/url/https://www.tandfonline.com/doi/abs/10.1080/08912960600866920
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 Taylor & Francis
publisher.none.fl_str_mv Taylor & Francis
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
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score 12.993085

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