Did all theropods have chicken-like feet? First evidence of a non-avian dinosaur podotheca

Autores
Cuesta, Elena; Díaz Martínez, Ignacio; Ortega, Francisco; Sanz, José L.
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The podotheca is the structure of scales covering the foot in extant birds. It is usually assumed that this structure is present in the whole clade of theropod dinosaurs; however, the knowledge of the origin of the podotheca is based on scarce direct evidence and its point of emergence within Theropoda is ambiguous. Here we discuss the relatively complete and well preserved podotheca of the basal tetanurae Concavenator corcovatus, which allows the description of its structure and its osteological correlation. We describe the skin pattern around the autopod of Concavenator and we compare it with available fossil skin impressions and the skin of extant crocodiles and birds. These scale impressions present a similar pattern to those observed in the autopod of avian theropods, so our results suggest that Concavenator have a bird-like podotheca. On the other hand, there is a current debate about the ichnological–osteological correlation in dinosaurs, derived from the lack of knowledge about the position of the phalanges in relation to the plantar pads of the podotheca. We describe, in Concavenator, an arthral condition of the position of the plantar pads. This condition would be the basal condition in the tetanurans and, thus, the ichnological record could be interpreted with an additional criterion. The autopod of Concavenator provides the first evidence of this type of structure in a non-avian theropod and it sheds light on the origin and distribution of this structure in the theropod large lineage.
Fil: Cuesta, Elena. Universidad Autónoma de Madrid; España
Fil: Díaz Martínez, Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; Argentina
Fil: Ortega, Francisco. Universidad Nacional de Educación a Distancia; España
Fil: Sanz, José L.. Universidad Autónoma de Madrid; España
Materia
Dinosaur
Theropoda
Carcharodontosauria
Avian Podotheca
Lower Cretaceous
Spain
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:11336/43777
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Did all theropods have chicken-like feet? First evidence of a non-avian dinosaur podothecaCuesta, ElenaDíaz Martínez, IgnacioOrtega, FranciscoSanz, José L.DinosaurTheropodaCarcharodontosauriaAvian PodothecaLower CretaceousSpainhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The podotheca is the structure of scales covering the foot in extant birds. It is usually assumed that this structure is present in the whole clade of theropod dinosaurs; however, the knowledge of the origin of the podotheca is based on scarce direct evidence and its point of emergence within Theropoda is ambiguous. Here we discuss the relatively complete and well preserved podotheca of the basal tetanurae Concavenator corcovatus, which allows the description of its structure and its osteological correlation. We describe the skin pattern around the autopod of Concavenator and we compare it with available fossil skin impressions and the skin of extant crocodiles and birds. These scale impressions present a similar pattern to those observed in the autopod of avian theropods, so our results suggest that Concavenator have a bird-like podotheca. On the other hand, there is a current debate about the ichnological–osteological correlation in dinosaurs, derived from the lack of knowledge about the position of the phalanges in relation to the plantar pads of the podotheca. We describe, in Concavenator, an arthral condition of the position of the plantar pads. This condition would be the basal condition in the tetanurans and, thus, the ichnological record could be interpreted with an additional criterion. The autopod of Concavenator provides the first evidence of this type of structure in a non-avian theropod and it sheds light on the origin and distribution of this structure in the theropod large lineage.Fil: Cuesta, Elena. Universidad Autónoma de Madrid; EspañaFil: Díaz Martínez, Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; ArgentinaFil: Ortega, Francisco. Universidad Nacional de Educación a Distancia; EspañaFil: Sanz, José L.. Universidad Autónoma de Madrid; EspañaAcademic Press Ltd - Elsevier Science Ltd2015-12-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/43777Cuesta, Elena; Díaz Martínez, Ignacio; Ortega, Francisco; Sanz, José L.; Did all theropods have chicken-like feet? First evidence of a non-avian dinosaur podotheca; Academic Press Ltd - Elsevier Science Ltd; Cretaceous Research; 56; 20-12-2015; 53-590195-6671CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0195667115000373?via%3Dihubinfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.cretres.2015.03.008info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:45:58Zoai:ri.conicet.gov.ar:11336/43777instacron: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 09:45:58.944CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Did all theropods have chicken-like feet? First evidence of a non-avian dinosaur podotheca
title Did all theropods have chicken-like feet? First evidence of a non-avian dinosaur podotheca
spellingShingle Did all theropods have chicken-like feet? First evidence of a non-avian dinosaur podotheca
Cuesta, Elena
Dinosaur
Theropoda
Carcharodontosauria
Avian Podotheca
Lower Cretaceous
Spain
title_short Did all theropods have chicken-like feet? First evidence of a non-avian dinosaur podotheca
title_full Did all theropods have chicken-like feet? First evidence of a non-avian dinosaur podotheca
title_fullStr Did all theropods have chicken-like feet? First evidence of a non-avian dinosaur podotheca
title_full_unstemmed Did all theropods have chicken-like feet? First evidence of a non-avian dinosaur podotheca
title_sort Did all theropods have chicken-like feet? First evidence of a non-avian dinosaur podotheca
dc.creator.none.fl_str_mv Cuesta, Elena
Díaz Martínez, Ignacio
Ortega, Francisco
Sanz, José L.
author Cuesta, Elena
author_facet Cuesta, Elena
Díaz Martínez, Ignacio
Ortega, Francisco
Sanz, José L.
author_role author
author2 Díaz Martínez, Ignacio
Ortega, Francisco
Sanz, José L.
author2_role author
author
author
dc.subject.none.fl_str_mv Dinosaur
Theropoda
Carcharodontosauria
Avian Podotheca
Lower Cretaceous
Spain
topic Dinosaur
Theropoda
Carcharodontosauria
Avian Podotheca
Lower Cretaceous
Spain
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 podotheca is the structure of scales covering the foot in extant birds. It is usually assumed that this structure is present in the whole clade of theropod dinosaurs; however, the knowledge of the origin of the podotheca is based on scarce direct evidence and its point of emergence within Theropoda is ambiguous. Here we discuss the relatively complete and well preserved podotheca of the basal tetanurae Concavenator corcovatus, which allows the description of its structure and its osteological correlation. We describe the skin pattern around the autopod of Concavenator and we compare it with available fossil skin impressions and the skin of extant crocodiles and birds. These scale impressions present a similar pattern to those observed in the autopod of avian theropods, so our results suggest that Concavenator have a bird-like podotheca. On the other hand, there is a current debate about the ichnological–osteological correlation in dinosaurs, derived from the lack of knowledge about the position of the phalanges in relation to the plantar pads of the podotheca. We describe, in Concavenator, an arthral condition of the position of the plantar pads. This condition would be the basal condition in the tetanurans and, thus, the ichnological record could be interpreted with an additional criterion. The autopod of Concavenator provides the first evidence of this type of structure in a non-avian theropod and it sheds light on the origin and distribution of this structure in the theropod large lineage.
Fil: Cuesta, Elena. Universidad Autónoma de Madrid; España
Fil: Díaz Martínez, Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; Argentina
Fil: Ortega, Francisco. Universidad Nacional de Educación a Distancia; España
Fil: Sanz, José L.. Universidad Autónoma de Madrid; España
description The podotheca is the structure of scales covering the foot in extant birds. It is usually assumed that this structure is present in the whole clade of theropod dinosaurs; however, the knowledge of the origin of the podotheca is based on scarce direct evidence and its point of emergence within Theropoda is ambiguous. Here we discuss the relatively complete and well preserved podotheca of the basal tetanurae Concavenator corcovatus, which allows the description of its structure and its osteological correlation. We describe the skin pattern around the autopod of Concavenator and we compare it with available fossil skin impressions and the skin of extant crocodiles and birds. These scale impressions present a similar pattern to those observed in the autopod of avian theropods, so our results suggest that Concavenator have a bird-like podotheca. On the other hand, there is a current debate about the ichnological–osteological correlation in dinosaurs, derived from the lack of knowledge about the position of the phalanges in relation to the plantar pads of the podotheca. We describe, in Concavenator, an arthral condition of the position of the plantar pads. This condition would be the basal condition in the tetanurans and, thus, the ichnological record could be interpreted with an additional criterion. The autopod of Concavenator provides the first evidence of this type of structure in a non-avian theropod and it sheds light on the origin and distribution of this structure in the theropod large lineage.
publishDate 2015
dc.date.none.fl_str_mv 2015-12-20
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/11336/43777
Cuesta, Elena; Díaz Martínez, Ignacio; Ortega, Francisco; Sanz, José L.; Did all theropods have chicken-like feet? First evidence of a non-avian dinosaur podotheca; Academic Press Ltd - Elsevier Science Ltd; Cretaceous Research; 56; 20-12-2015; 53-59
0195-6671
CONICET Digital
CONICET
url http://hdl.handle.net/11336/43777
identifier_str_mv Cuesta, Elena; Díaz Martínez, Ignacio; Ortega, Francisco; Sanz, José L.; Did all theropods have chicken-like feet? First evidence of a non-avian dinosaur podotheca; Academic Press Ltd - Elsevier Science Ltd; Cretaceous Research; 56; 20-12-2015; 53-59
0195-6671
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.sciencedirect.com/science/article/pii/S0195667115000373?via%3Dihub
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cretres.2015.03.008
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 Academic Press Ltd - Elsevier Science Ltd
publisher.none.fl_str_mv Academic Press Ltd - Elsevier Science Ltd
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 13.070432

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