Bird-like fossil footprints from the Late Triassic

Autores
Melchor, Ricardo Nestor; de Valais, Silvina; Genise, Jorge Fernando
Año de publicación
2002
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The study of fossilized footprints and tracks of dinosaurs and other vertebrates has provided insight into the origin, evolution and extinction of several major groups and their behaviour; it has also been an important complement to their body fossil record1-4. The known history of birds starts in the Late Jurassic epoch (around 150 Myr ago) with the record of Archaeopteryx5, whereas the coelurosaurian ancestors of the birds date back to the Early Jurassic6. The hind limbs of Late Triassic epoch theropods lack osteological evidence for an avian reversed hallux and also display other functional differences from birds7. Previous references to suggested Late Triassic to Early Jurassic bird-like footprints have been reinterpreted as produced by non-avian dinosaurs having a high angle between digits II and IV8, 9 and in all cases their avian affinities have been challenged10. Here we describe well-preserved and abundant footprints with clearly avian characters from a Late Triassic redbed sequence of Argentina11, 12, at least 55 Myr before the first known skeletal record of birds. These footprints document the activities, in an environment interpreted as small ponds associated with ephemeral rivers, of an unknown group of Late Triassic theropods having some avian characters.
Fil: Melchor, Ricardo Nestor. Universidad Nacional de La Pampa; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: de Valais, Silvina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Museo Paleontologico Egidio Feruglio; Argentina
Fil: Genise, Jorge Fernando. Museo Paleontologico Egidio Feruglio; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
Materia
Avian footprints
Late Triassic
Santo Domingo 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:11336/99641
Acceder
id CONICETDig_c355ab8906ff84d51b667b509a8719bf
oai_identifier_str oai:ri.conicet.gov.ar:11336/99641
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Bird-like fossil footprints from the Late TriassicMelchor, Ricardo Nestorde Valais, SilvinaGenise, Jorge FernandoAvian footprintsLate TriassicSanto Domingo FormationArgentinahttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The study of fossilized footprints and tracks of dinosaurs and other vertebrates has provided insight into the origin, evolution and extinction of several major groups and their behaviour; it has also been an important complement to their body fossil record1-4. The known history of birds starts in the Late Jurassic epoch (around 150 Myr ago) with the record of Archaeopteryx5, whereas the coelurosaurian ancestors of the birds date back to the Early Jurassic6. The hind limbs of Late Triassic epoch theropods lack osteological evidence for an avian reversed hallux and also display other functional differences from birds7. Previous references to suggested Late Triassic to Early Jurassic bird-like footprints have been reinterpreted as produced by non-avian dinosaurs having a high angle between digits II and IV8, 9 and in all cases their avian affinities have been challenged10. Here we describe well-preserved and abundant footprints with clearly avian characters from a Late Triassic redbed sequence of Argentina11, 12, at least 55 Myr before the first known skeletal record of birds. These footprints document the activities, in an environment interpreted as small ponds associated with ephemeral rivers, of an unknown group of Late Triassic theropods having some avian characters.Fil: Melchor, Ricardo Nestor. Universidad Nacional de La Pampa; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: de Valais, Silvina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Museo Paleontologico Egidio Feruglio; ArgentinaFil: Genise, Jorge Fernando. Museo Paleontologico Egidio Feruglio; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; ArgentinaNature Publishing Group2002-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/99641Melchor, Ricardo Nestor; de Valais, Silvina; Genise, Jorge Fernando; Bird-like fossil footprints from the Late Triassic; Nature Publishing Group; Nature; 417; 6892; 6-2002; 936-9380028-0836CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1038/nature00818info:eu-repo/semantics/altIdentifier/url/https://www.nature.com/articles/nature00818info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:35:07Zoai:ri.conicet.gov.ar:11336/99641instacron: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:34982025-10-15 15:35:08.048CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Bird-like fossil footprints from the Late Triassic
title Bird-like fossil footprints from the Late Triassic
spellingShingle Bird-like fossil footprints from the Late Triassic
Melchor, Ricardo Nestor
Avian footprints
Late Triassic
Santo Domingo Formation
Argentina
title_short Bird-like fossil footprints from the Late Triassic
title_full Bird-like fossil footprints from the Late Triassic
title_fullStr Bird-like fossil footprints from the Late Triassic
title_full_unstemmed Bird-like fossil footprints from the Late Triassic
title_sort Bird-like fossil footprints from the Late Triassic
dc.creator.none.fl_str_mv Melchor, Ricardo Nestor
de Valais, Silvina
Genise, Jorge Fernando
author Melchor, Ricardo Nestor
author_facet Melchor, Ricardo Nestor
de Valais, Silvina
Genise, Jorge Fernando
author_role author
author2 de Valais, Silvina
Genise, Jorge Fernando
author2_role author
author
dc.subject.none.fl_str_mv Avian footprints
Late Triassic
Santo Domingo Formation
Argentina
topic Avian footprints
Late Triassic
Santo Domingo Formation
Argentina
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 study of fossilized footprints and tracks of dinosaurs and other vertebrates has provided insight into the origin, evolution and extinction of several major groups and their behaviour; it has also been an important complement to their body fossil record1-4. The known history of birds starts in the Late Jurassic epoch (around 150 Myr ago) with the record of Archaeopteryx5, whereas the coelurosaurian ancestors of the birds date back to the Early Jurassic6. The hind limbs of Late Triassic epoch theropods lack osteological evidence for an avian reversed hallux and also display other functional differences from birds7. Previous references to suggested Late Triassic to Early Jurassic bird-like footprints have been reinterpreted as produced by non-avian dinosaurs having a high angle between digits II and IV8, 9 and in all cases their avian affinities have been challenged10. Here we describe well-preserved and abundant footprints with clearly avian characters from a Late Triassic redbed sequence of Argentina11, 12, at least 55 Myr before the first known skeletal record of birds. These footprints document the activities, in an environment interpreted as small ponds associated with ephemeral rivers, of an unknown group of Late Triassic theropods having some avian characters.
Fil: Melchor, Ricardo Nestor. Universidad Nacional de La Pampa; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: de Valais, Silvina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Museo Paleontologico Egidio Feruglio; Argentina
Fil: Genise, Jorge Fernando. Museo Paleontologico Egidio Feruglio; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Nacional Patagónico; Argentina
description The study of fossilized footprints and tracks of dinosaurs and other vertebrates has provided insight into the origin, evolution and extinction of several major groups and their behaviour; it has also been an important complement to their body fossil record1-4. The known history of birds starts in the Late Jurassic epoch (around 150 Myr ago) with the record of Archaeopteryx5, whereas the coelurosaurian ancestors of the birds date back to the Early Jurassic6. The hind limbs of Late Triassic epoch theropods lack osteological evidence for an avian reversed hallux and also display other functional differences from birds7. Previous references to suggested Late Triassic to Early Jurassic bird-like footprints have been reinterpreted as produced by non-avian dinosaurs having a high angle between digits II and IV8, 9 and in all cases their avian affinities have been challenged10. Here we describe well-preserved and abundant footprints with clearly avian characters from a Late Triassic redbed sequence of Argentina11, 12, at least 55 Myr before the first known skeletal record of birds. These footprints document the activities, in an environment interpreted as small ponds associated with ephemeral rivers, of an unknown group of Late Triassic theropods having some avian characters.
publishDate 2002
dc.date.none.fl_str_mv 2002-06
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/11336/99641
Melchor, Ricardo Nestor; de Valais, Silvina; Genise, Jorge Fernando; Bird-like fossil footprints from the Late Triassic; Nature Publishing Group; Nature; 417; 6892; 6-2002; 936-938
0028-0836
CONICET Digital
CONICET
url http://hdl.handle.net/11336/99641
identifier_str_mv Melchor, Ricardo Nestor; de Valais, Silvina; Genise, Jorge Fernando; Bird-like fossil footprints from the Late Triassic; Nature Publishing Group; Nature; 417; 6892; 6-2002; 936-938
0028-0836
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1038/nature00818
info:eu-repo/semantics/altIdentifier/url/https://www.nature.com/articles/nature00818
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
dc.publisher.none.fl_str_mv Nature Publishing Group
publisher.none.fl_str_mv Nature Publishing Group
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_ 1846083478339190784
score 13.22299

Publicaciones similares