Late Cretaceous avian footprints from the Angostura Colorada Formation (Río Negro province, Patagonia, Argentina)

Autores
Díaz Martínez, Ignacio; de Valais, Silvina; Cónsole Gonella, Carlos Alfredo; Pereda Suberbiola, Xabier; Belvedere, Matteo; Giraldo, Carlos
Año de publicación
2015
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Fil: Díaz Martínez, Ignacio. Universidad Nacional de Rio Negro. Instituto de Investigaciones en Paleobiologia y Geologia. Río Negro, Argentina.
Fil: de Valais, Silvina. Universidad Nacional de Rio Negro. Instituto de Investigaciones en Paleobiologia y Geologia. Río Negro, Argentina.
Fil: Cónsole Gonella, Carlos Alfredo. CONICET, Universidad Nacional de Tucumán; Argentina.
Fil: Pereda Suberbiola, Xabier. Universidad del País Vasco/Euskal Herriko Unibertsitatea; España.
Fil: Belvedere, Matteo. Museum für Naturkunde Berlín; Alemania.
Fil: Giraldo, Carlos. Universidad de Caldas; Colombia.
In the seventies, R. Casamiquela found and collected one small slab with footprints close to the town of Ingeniero Jacobacci, in Northwestern Patagonia (Río Negro province, Argentina). The footprints were published succinctly without a concrete geographical and geological location. Casamiquela named an isolated track as Tridigitichnus inopinatus, originally related to hadrosaurids, and nearly 25 tracks as Patagonichornis venetiorum, with avian affinity. The footprints have never been studied in detail and both ichnotaxa are currently considered nomina nuda. The slab was transferred to the Museo di Storia Naturale of Venice, Italy, where it is exposed to the public. Recent fieldworks around Jacobacci have yielded new avian footprints bearing levels from the Angostura Colorada Formation (Campanian-Maastrichtian; Upper Cretaceous). The palaeoenvironment of the unit has been interpreted as alluvial fan, braided river and food plain systems. There are two different morphologies of footprints, but in general they are tridactyl, mesaxonic, with the slender digits directed forward, with no evidence of webbing trace or digit I impressions. One of the types is composed by two small, asymmetric isolated footprints (averaging 38.2 mm long and 41.3 mm width). The average divarication angle between digit impressions II-IV is 109º. The second type includes three isolated symmetric tracks, wider than long (averaging 81.0 mm long and 108.4 mm width). The average divarication angle between digit impressions II and IV is 150º. Up to date, there are few Campanian-Maastrichtian avian tracksites from Gondwana. Therefore, Jacobacci record represents an excellent example of avian ichnodiversity just before the Cretaceous-Paleogene extinction.
Materia
Ciencias Exactas y Naturales
Avian Footprints
Upper Cretaceous
Angostura Colorada Formation
Argentina
Ciencias Exactas y Naturales
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
RID-UNRN (UNRN)
Institución
Universidad Nacional de Río Negro
OAI Identificador
oai:rid.unrn.edu.ar:20.500.12049/5985

id RIDUNRN_28fa1594fa745fa73e7731e630e7d426
oai_identifier_str oai:rid.unrn.edu.ar:20.500.12049/5985
network_acronym_str RIDUNRN
repository_id_str 4369
network_name_str RID-UNRN (UNRN)
spelling Late Cretaceous avian footprints from the Angostura Colorada Formation (Río Negro province, Patagonia, Argentina)Díaz Martínez, Ignaciode Valais, SilvinaCónsole Gonella, Carlos AlfredoPereda Suberbiola, XabierBelvedere, MatteoGiraldo, CarlosCiencias Exactas y NaturalesAvian FootprintsUpper CretaceousAngostura Colorada FormationArgentinaCiencias Exactas y NaturalesFil: Díaz Martínez, Ignacio. Universidad Nacional de Rio Negro. Instituto de Investigaciones en Paleobiologia y Geologia. Río Negro, Argentina.Fil: de Valais, Silvina. Universidad Nacional de Rio Negro. Instituto de Investigaciones en Paleobiologia y Geologia. Río Negro, Argentina.Fil: Cónsole Gonella, Carlos Alfredo. CONICET, Universidad Nacional de Tucumán; Argentina.Fil: Pereda Suberbiola, Xabier. Universidad del País Vasco/Euskal Herriko Unibertsitatea; España.Fil: Belvedere, Matteo. Museum für Naturkunde Berlín; Alemania.Fil: Giraldo, Carlos. Universidad de Caldas; Colombia.In the seventies, R. Casamiquela found and collected one small slab with footprints close to the town of Ingeniero Jacobacci, in Northwestern Patagonia (Río Negro province, Argentina). The footprints were published succinctly without a concrete geographical and geological location. Casamiquela named an isolated track as Tridigitichnus inopinatus, originally related to hadrosaurids, and nearly 25 tracks as Patagonichornis venetiorum, with avian affinity. The footprints have never been studied in detail and both ichnotaxa are currently considered nomina nuda. The slab was transferred to the Museo di Storia Naturale of Venice, Italy, where it is exposed to the public. Recent fieldworks around Jacobacci have yielded new avian footprints bearing levels from the Angostura Colorada Formation (Campanian-Maastrichtian; Upper Cretaceous). The palaeoenvironment of the unit has been interpreted as alluvial fan, braided river and food plain systems. There are two different morphologies of footprints, but in general they are tridactyl, mesaxonic, with the slender digits directed forward, with no evidence of webbing trace or digit I impressions. One of the types is composed by two small, asymmetric isolated footprints (averaging 38.2 mm long and 41.3 mm width). The average divarication angle between digit impressions II-IV is 109º. The second type includes three isolated symmetric tracks, wider than long (averaging 81.0 mm long and 108.4 mm width). The average divarication angle between digit impressions II and IV is 150º. Up to date, there are few Campanian-Maastrichtian avian tracksites from Gondwana. Therefore, Jacobacci record represents an excellent example of avian ichnodiversity just before the Cretaceous-Paleogene extinction.2015info:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfhttp://rid.unrn.edu.ar/handle/20.500.12049/5985engI Congresso Internacional As aves na História Natural, na Pré-História e na Históriainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/4.0/reponame:RID-UNRN (UNRN)instname:Universidad Nacional de Río Negro2025-09-29T14:28:58Zoai:rid.unrn.edu.ar:20.500.12049/5985instacron:UNRNInstitucionalhttps://rid.unrn.edu.ar/jspui/Universidad públicaNo correspondehttps://rid.unrn.edu.ar/oai/snrdrid@unrn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:43692025-09-29 14:28:58.711RID-UNRN (UNRN) - Universidad Nacional de Río Negrofalse
dc.title.none.fl_str_mv Late Cretaceous avian footprints from the Angostura Colorada Formation (Río Negro province, Patagonia, Argentina)
title Late Cretaceous avian footprints from the Angostura Colorada Formation (Río Negro province, Patagonia, Argentina)
spellingShingle Late Cretaceous avian footprints from the Angostura Colorada Formation (Río Negro province, Patagonia, Argentina)
Díaz Martínez, Ignacio
Ciencias Exactas y Naturales
Avian Footprints
Upper Cretaceous
Angostura Colorada Formation
Argentina
Ciencias Exactas y Naturales
title_short Late Cretaceous avian footprints from the Angostura Colorada Formation (Río Negro province, Patagonia, Argentina)
title_full Late Cretaceous avian footprints from the Angostura Colorada Formation (Río Negro province, Patagonia, Argentina)
title_fullStr Late Cretaceous avian footprints from the Angostura Colorada Formation (Río Negro province, Patagonia, Argentina)
title_full_unstemmed Late Cretaceous avian footprints from the Angostura Colorada Formation (Río Negro province, Patagonia, Argentina)
title_sort Late Cretaceous avian footprints from the Angostura Colorada Formation (Río Negro province, Patagonia, Argentina)
dc.creator.none.fl_str_mv Díaz Martínez, Ignacio
de Valais, Silvina
Cónsole Gonella, Carlos Alfredo
Pereda Suberbiola, Xabier
Belvedere, Matteo
Giraldo, Carlos
author Díaz Martínez, Ignacio
author_facet Díaz Martínez, Ignacio
de Valais, Silvina
Cónsole Gonella, Carlos Alfredo
Pereda Suberbiola, Xabier
Belvedere, Matteo
Giraldo, Carlos
author_role author
author2 de Valais, Silvina
Cónsole Gonella, Carlos Alfredo
Pereda Suberbiola, Xabier
Belvedere, Matteo
Giraldo, Carlos
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas y Naturales
Avian Footprints
Upper Cretaceous
Angostura Colorada Formation
Argentina
Ciencias Exactas y Naturales
topic Ciencias Exactas y Naturales
Avian Footprints
Upper Cretaceous
Angostura Colorada Formation
Argentina
Ciencias Exactas y Naturales
dc.description.none.fl_txt_mv Fil: Díaz Martínez, Ignacio. Universidad Nacional de Rio Negro. Instituto de Investigaciones en Paleobiologia y Geologia. Río Negro, Argentina.
Fil: de Valais, Silvina. Universidad Nacional de Rio Negro. Instituto de Investigaciones en Paleobiologia y Geologia. Río Negro, Argentina.
Fil: Cónsole Gonella, Carlos Alfredo. CONICET, Universidad Nacional de Tucumán; Argentina.
Fil: Pereda Suberbiola, Xabier. Universidad del País Vasco/Euskal Herriko Unibertsitatea; España.
Fil: Belvedere, Matteo. Museum für Naturkunde Berlín; Alemania.
Fil: Giraldo, Carlos. Universidad de Caldas; Colombia.
In the seventies, R. Casamiquela found and collected one small slab with footprints close to the town of Ingeniero Jacobacci, in Northwestern Patagonia (Río Negro province, Argentina). The footprints were published succinctly without a concrete geographical and geological location. Casamiquela named an isolated track as Tridigitichnus inopinatus, originally related to hadrosaurids, and nearly 25 tracks as Patagonichornis venetiorum, with avian affinity. The footprints have never been studied in detail and both ichnotaxa are currently considered nomina nuda. The slab was transferred to the Museo di Storia Naturale of Venice, Italy, where it is exposed to the public. Recent fieldworks around Jacobacci have yielded new avian footprints bearing levels from the Angostura Colorada Formation (Campanian-Maastrichtian; Upper Cretaceous). The palaeoenvironment of the unit has been interpreted as alluvial fan, braided river and food plain systems. There are two different morphologies of footprints, but in general they are tridactyl, mesaxonic, with the slender digits directed forward, with no evidence of webbing trace or digit I impressions. One of the types is composed by two small, asymmetric isolated footprints (averaging 38.2 mm long and 41.3 mm width). The average divarication angle between digit impressions II-IV is 109º. The second type includes three isolated symmetric tracks, wider than long (averaging 81.0 mm long and 108.4 mm width). The average divarication angle between digit impressions II and IV is 150º. Up to date, there are few Campanian-Maastrichtian avian tracksites from Gondwana. Therefore, Jacobacci record represents an excellent example of avian ichnodiversity just before the Cretaceous-Paleogene extinction.
description Fil: Díaz Martínez, Ignacio. Universidad Nacional de Rio Negro. Instituto de Investigaciones en Paleobiologia y Geologia. Río Negro, Argentina.
publishDate 2015
dc.date.none.fl_str_mv 2015
dc.type.none.fl_str_mv info:eu-repo/semantics/conferenceObject
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
format conferenceObject
status_str publishedVersion
dc.identifier.none.fl_str_mv http://rid.unrn.edu.ar/handle/20.500.12049/5985
url http://rid.unrn.edu.ar/handle/20.500.12049/5985
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv I Congresso Internacional As aves na História Natural, na Pré-História e na História
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/4.0/
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:RID-UNRN (UNRN)
instname:Universidad Nacional de Río Negro
reponame_str RID-UNRN (UNRN)
collection RID-UNRN (UNRN)
instname_str Universidad Nacional de Río Negro
repository.name.fl_str_mv RID-UNRN (UNRN) - Universidad Nacional de Río Negro
repository.mail.fl_str_mv rid@unrn.edu.ar
_version_ 1844621605691457536
score 12.559606