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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/99641
Ver los metadatos del registro completo
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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 |
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1846083478339190784 |
score |
13.22299 |