Morphological variations in bipedal dinosaur tracks from the Aguada de Tuco tracksite, Candeleros Formation (Cenomanian, Upper Cretaceous) of northwestern Patagonia, Argentina

Autores
Heredia, Arturo Miguel; Pazos, Pablo Jose; Díaz Martínez, Ignacio
Año de publicación
2021
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
New bipedal dinosaur tracks from the Aguada de Tuco tracksite of the Cenomanian Candeleros Formation (Neuquén Group, Neuquén Basin, Argentina) are reported here. These tracks are preserved in medium grain-sized sandstones from fluvial deposits in three different stratigraphic levels (Level 1-3). The Level 1 comprises deep tridactyl tracks with apparent metatarsal impressions (average length of 31 cm) preserved as true tracks and undertracks, perhaps generated due to simply sinking of the pes into a soft substrate. The Level 2 includes large tridactyl tracks (average length of 58 cm) found a few meters close to a previously studied sauropod trackway. These bipedal and quadrupedal large tracks differ in several preservational features probably due to differences in the pedal shape and substrate interaction between these trackmakers. Level 3 comprises small to large tridactyl tracks (length from 6 to 34 cm) with a broad variety of morphologies including intra-trackway variation, suggesting changes in the substrate properties, mainly moisture content, along the tracking surface. Considering that the footprints studied here are poorly preserved, they were not assigned to any particular ichnotaxon. The large tridactyl tracks were attributed to theropod trackmakers while medium and small tracks to undetermined bipedal dinosaurs. This tracksite exemplifies inter- and intra-trackways morphological variability of dinosaur tridactyl tracks controlled mainly by the substrate properties.
Fil: Heredia, Arturo Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Pazos, Pablo Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
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
1° Reunión Virtual de Comunicaciones de la Asociación Paleontológica Argentina
Buenos Aires
Argentina
Asociación Paleontológica Argentina
Materia
Dinosaur footprints
Theropod tracks
Metatarsal impressions
Substrate controls
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:11336/179604
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Morphological variations in bipedal dinosaur tracks from the Aguada de Tuco tracksite, Candeleros Formation (Cenomanian, Upper Cretaceous) of northwestern Patagonia, ArgentinaHeredia, Arturo MiguelPazos, Pablo JoseDíaz Martínez, IgnacioDinosaur footprintsTheropod tracksMetatarsal impressionsSubstrate controlshttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1New bipedal dinosaur tracks from the Aguada de Tuco tracksite of the Cenomanian Candeleros Formation (Neuquén Group, Neuquén Basin, Argentina) are reported here. These tracks are preserved in medium grain-sized sandstones from fluvial deposits in three different stratigraphic levels (Level 1-3). The Level 1 comprises deep tridactyl tracks with apparent metatarsal impressions (average length of 31 cm) preserved as true tracks and undertracks, perhaps generated due to simply sinking of the pes into a soft substrate. The Level 2 includes large tridactyl tracks (average length of 58 cm) found a few meters close to a previously studied sauropod trackway. These bipedal and quadrupedal large tracks differ in several preservational features probably due to differences in the pedal shape and substrate interaction between these trackmakers. Level 3 comprises small to large tridactyl tracks (length from 6 to 34 cm) with a broad variety of morphologies including intra-trackway variation, suggesting changes in the substrate properties, mainly moisture content, along the tracking surface. Considering that the footprints studied here are poorly preserved, they were not assigned to any particular ichnotaxon. The large tridactyl tracks were attributed to theropod trackmakers while medium and small tracks to undetermined bipedal dinosaurs. This tracksite exemplifies inter- and intra-trackways morphological variability of dinosaur tridactyl tracks controlled mainly by the substrate properties.Fil: Heredia, Arturo Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; ArgentinaFil: Pazos, Pablo Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; ArgentinaFil: Díaz Martínez, Ignacio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; Argentina1° Reunión Virtual de Comunicaciones de la Asociación Paleontológica ArgentinaBuenos AiresArgentinaAsociación Paleontológica ArgentinaAsociación Paleontológica Argentina2021info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectReuniónBookhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/179604Morphological variations in bipedal dinosaur tracks from the Aguada de Tuco tracksite, Candeleros Formation (Cenomanian, Upper Cretaceous) of northwestern Patagonia, Argentina; 1° Reunión Virtual de Comunicaciones de la Asociación Paleontológica Argentina; Buenos Aires; Argentina; 2020; 1-2CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.apaleontologica.org.ar/wp-content/uploads/2020/11/Libro-de-Resumenes-1er-RVCAPA-2.pdfNacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:46:51Zoai:ri.conicet.gov.ar:11336/179604instacron: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:34982025-09-03 09:46:52.182CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Morphological variations in bipedal dinosaur tracks from the Aguada de Tuco tracksite, Candeleros Formation (Cenomanian, Upper Cretaceous) of northwestern Patagonia, Argentina
title Morphological variations in bipedal dinosaur tracks from the Aguada de Tuco tracksite, Candeleros Formation (Cenomanian, Upper Cretaceous) of northwestern Patagonia, Argentina
spellingShingle Morphological variations in bipedal dinosaur tracks from the Aguada de Tuco tracksite, Candeleros Formation (Cenomanian, Upper Cretaceous) of northwestern Patagonia, Argentina
Heredia, Arturo Miguel
Dinosaur footprints
Theropod tracks
Metatarsal impressions
Substrate controls
title_short Morphological variations in bipedal dinosaur tracks from the Aguada de Tuco tracksite, Candeleros Formation (Cenomanian, Upper Cretaceous) of northwestern Patagonia, Argentina
title_full Morphological variations in bipedal dinosaur tracks from the Aguada de Tuco tracksite, Candeleros Formation (Cenomanian, Upper Cretaceous) of northwestern Patagonia, Argentina
title_fullStr Morphological variations in bipedal dinosaur tracks from the Aguada de Tuco tracksite, Candeleros Formation (Cenomanian, Upper Cretaceous) of northwestern Patagonia, Argentina
title_full_unstemmed Morphological variations in bipedal dinosaur tracks from the Aguada de Tuco tracksite, Candeleros Formation (Cenomanian, Upper Cretaceous) of northwestern Patagonia, Argentina
title_sort Morphological variations in bipedal dinosaur tracks from the Aguada de Tuco tracksite, Candeleros Formation (Cenomanian, Upper Cretaceous) of northwestern Patagonia, Argentina
dc.creator.none.fl_str_mv Heredia, Arturo Miguel
Pazos, Pablo Jose
Díaz Martínez, Ignacio
author Heredia, Arturo Miguel
author_facet Heredia, Arturo Miguel
Pazos, Pablo Jose
Díaz Martínez, Ignacio
author_role author
author2 Pazos, Pablo Jose
Díaz Martínez, Ignacio
author2_role author
author
dc.subject.none.fl_str_mv Dinosaur footprints
Theropod tracks
Metatarsal impressions
Substrate controls
topic Dinosaur footprints
Theropod tracks
Metatarsal impressions
Substrate controls
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv New bipedal dinosaur tracks from the Aguada de Tuco tracksite of the Cenomanian Candeleros Formation (Neuquén Group, Neuquén Basin, Argentina) are reported here. These tracks are preserved in medium grain-sized sandstones from fluvial deposits in three different stratigraphic levels (Level 1-3). The Level 1 comprises deep tridactyl tracks with apparent metatarsal impressions (average length of 31 cm) preserved as true tracks and undertracks, perhaps generated due to simply sinking of the pes into a soft substrate. The Level 2 includes large tridactyl tracks (average length of 58 cm) found a few meters close to a previously studied sauropod trackway. These bipedal and quadrupedal large tracks differ in several preservational features probably due to differences in the pedal shape and substrate interaction between these trackmakers. Level 3 comprises small to large tridactyl tracks (length from 6 to 34 cm) with a broad variety of morphologies including intra-trackway variation, suggesting changes in the substrate properties, mainly moisture content, along the tracking surface. Considering that the footprints studied here are poorly preserved, they were not assigned to any particular ichnotaxon. The large tridactyl tracks were attributed to theropod trackmakers while medium and small tracks to undetermined bipedal dinosaurs. This tracksite exemplifies inter- and intra-trackways morphological variability of dinosaur tridactyl tracks controlled mainly by the substrate properties.
Fil: Heredia, Arturo Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
Fil: Pazos, Pablo Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Estudios Andinos "Don Pablo Groeber". Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Estudios Andinos "Don Pablo Groeber"; Argentina
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
1° Reunión Virtual de Comunicaciones de la Asociación Paleontológica Argentina
Buenos Aires
Argentina
Asociación Paleontológica Argentina
description New bipedal dinosaur tracks from the Aguada de Tuco tracksite of the Cenomanian Candeleros Formation (Neuquén Group, Neuquén Basin, Argentina) are reported here. These tracks are preserved in medium grain-sized sandstones from fluvial deposits in three different stratigraphic levels (Level 1-3). The Level 1 comprises deep tridactyl tracks with apparent metatarsal impressions (average length of 31 cm) preserved as true tracks and undertracks, perhaps generated due to simply sinking of the pes into a soft substrate. The Level 2 includes large tridactyl tracks (average length of 58 cm) found a few meters close to a previously studied sauropod trackway. These bipedal and quadrupedal large tracks differ in several preservational features probably due to differences in the pedal shape and substrate interaction between these trackmakers. Level 3 comprises small to large tridactyl tracks (length from 6 to 34 cm) with a broad variety of morphologies including intra-trackway variation, suggesting changes in the substrate properties, mainly moisture content, along the tracking surface. Considering that the footprints studied here are poorly preserved, they were not assigned to any particular ichnotaxon. The large tridactyl tracks were attributed to theropod trackmakers while medium and small tracks to undetermined bipedal dinosaurs. This tracksite exemplifies inter- and intra-trackways morphological variability of dinosaur tridactyl tracks controlled mainly by the substrate properties.
publishDate 2021
dc.date.none.fl_str_mv 2021
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Reunión
Book
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/179604
Morphological variations in bipedal dinosaur tracks from the Aguada de Tuco tracksite, Candeleros Formation (Cenomanian, Upper Cretaceous) of northwestern Patagonia, Argentina; 1° Reunión Virtual de Comunicaciones de la Asociación Paleontológica Argentina; Buenos Aires; Argentina; 2020; 1-2
CONICET Digital
CONICET
url http://hdl.handle.net/11336/179604
identifier_str_mv Morphological variations in bipedal dinosaur tracks from the Aguada de Tuco tracksite, Candeleros Formation (Cenomanian, Upper Cretaceous) of northwestern Patagonia, Argentina; 1° Reunión Virtual de Comunicaciones de la Asociación Paleontológica Argentina; Buenos Aires; Argentina; 2020; 1-2
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.apaleontologica.org.ar/wp-content/uploads/2020/11/Libro-de-Resumenes-1er-RVCAPA-2.pdf
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.coverage.none.fl_str_mv Nacional
dc.publisher.none.fl_str_mv Asociación Paleontológica Argentina
publisher.none.fl_str_mv Asociación Paleontológica Argentina
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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