Unraveling sauropod diversity in the Portezuelo Formation of Patagonia through a comprehensive analysis of new and existing material

Autores
Gomez, Kevin Leonel; Pérez Moreno, Agustín; Meso, Jorge Gustavo; Bellardini, Flavio; Baiano, Mattia Antonio; Pol, Diego; Garrido, Alberto Carlos; Kaluza, Jonatan Ezequiel; Muci, Luciana; Pittman, Michael
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Portezuelo Formation preserves an outstanding record of the upper Turonian - lower Coniacian of Gondwana. Despite the discovery of a significant amount of sauropod fossil material from the Formation, only two species have been formally described to date: Malarguesaurus florenciae and Futalognkosaurus dukei. Here we present new sauropod material mostly composed of non-articulated caudal vertebrae that belong to at least two different titanosauriforms on the basis of following features: anterior caudal vertebrae with procoelous-opistoplatyan articulations, transverse processes that reach the posterior articular face of the centrum and neural spines with a lateromedial width of ~ 50% of its anteroposterior length; anterior and middle caudal vertebra with the neural arch restricted to the anterior half of the centrum; middle caudal centrum with circular cross-section. Phylogenetic analysis recovers the new material in close relation to Malarguesaurus within a monophyletic clade sister to Somphospondily. This clade shares large pedicel height with a vertical anterior border on the middle caudal vertebrae, a vertical orientation of the neural spines on the distalmost middle caudal vertebrae and proximalmost posterior caudal vertebrae, and subequal relative lengths of the proximal ulnar condylar processes. The specimens presented here are distinct not only from Malarguesaurus and Futalognkosaurus, but also from other indeterminate titanosaur remains from the same formation. Whilst we err on the side of caution in not naming new taxa here, the two specimens significantly expand what we know about sauropods in the Turonian-Coniacian ecosystems of Patagonia, which will continue to do so as more material is discovered.
Fil: Gomez, Kevin Leonel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; Argentina
Fil: Pérez Moreno, Agustín. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Departamento de Paleontología Invertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Meso, Jorge Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; Argentina
Fil: Bellardini, Flavio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; Argentina
Fil: Baiano, Mattia Antonio. Universidad Nacional de Río Negro; Argentina. Provincia del Neuquén. Municipalidad de Villa El Chocón. Museo Paleontológico "Ernesto Bachmann"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Pol, Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Garrido, Alberto Carlos. Provincia de Neuquén. Ministerio de Energía, Ambiente y Servicios Públicos. Dirección Provincial de Minería. Museo Provincial de Ciencias Naturales Prof. "Dr. Juan A. Olsacher"; Argentina
Fil: Kaluza, Jonatan Ezequiel. Universidad Maimónides; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fundación de Historia Natural Félix de Azara; Argentina
Fil: Muci, Luciana. Universidad Nacional de Río Negro. Sede Alto Valle; Argentina
Fil: Pittman, Michael. The Chinese University of Hong Kong; China
Materia
sauropod diversity
Portezuelo
Titanosauriformes
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/242319
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/242319
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Unraveling sauropod diversity in the Portezuelo Formation of Patagonia through a comprehensive analysis of new and existing materialGomez, Kevin LeonelPérez Moreno, AgustínMeso, Jorge GustavoBellardini, FlavioBaiano, Mattia AntonioPol, DiegoGarrido, Alberto CarlosKaluza, Jonatan EzequielMuci, LucianaPittman, Michaelsauropod diversityPortezueloTitanosauriformeshttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Portezuelo Formation preserves an outstanding record of the upper Turonian - lower Coniacian of Gondwana. Despite the discovery of a significant amount of sauropod fossil material from the Formation, only two species have been formally described to date: Malarguesaurus florenciae and Futalognkosaurus dukei. Here we present new sauropod material mostly composed of non-articulated caudal vertebrae that belong to at least two different titanosauriforms on the basis of following features: anterior caudal vertebrae with procoelous-opistoplatyan articulations, transverse processes that reach the posterior articular face of the centrum and neural spines with a lateromedial width of ~ 50% of its anteroposterior length; anterior and middle caudal vertebra with the neural arch restricted to the anterior half of the centrum; middle caudal centrum with circular cross-section. Phylogenetic analysis recovers the new material in close relation to Malarguesaurus within a monophyletic clade sister to Somphospondily. This clade shares large pedicel height with a vertical anterior border on the middle caudal vertebrae, a vertical orientation of the neural spines on the distalmost middle caudal vertebrae and proximalmost posterior caudal vertebrae, and subequal relative lengths of the proximal ulnar condylar processes. The specimens presented here are distinct not only from Malarguesaurus and Futalognkosaurus, but also from other indeterminate titanosaur remains from the same formation. Whilst we err on the side of caution in not naming new taxa here, the two specimens significantly expand what we know about sauropods in the Turonian-Coniacian ecosystems of Patagonia, which will continue to do so as more material is discovered.Fil: Gomez, Kevin Leonel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; ArgentinaFil: Pérez Moreno, Agustín. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Departamento de Paleontología Invertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Meso, Jorge Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; ArgentinaFil: Bellardini, Flavio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; ArgentinaFil: Baiano, Mattia Antonio. Universidad Nacional de Río Negro; Argentina. Provincia del Neuquén. Municipalidad de Villa El Chocón. Museo Paleontológico "Ernesto Bachmann"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Pol, Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; ArgentinaFil: Garrido, Alberto Carlos. Provincia de Neuquén. Ministerio de Energía, Ambiente y Servicios Públicos. Dirección Provincial de Minería. Museo Provincial de Ciencias Naturales Prof. "Dr. Juan A. Olsacher"; ArgentinaFil: Kaluza, Jonatan Ezequiel. Universidad Maimónides; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fundación de Historia Natural Félix de Azara; ArgentinaFil: Muci, Luciana. Universidad Nacional de Río Negro. Sede Alto Valle; ArgentinaFil: Pittman, Michael. The Chinese University of Hong Kong; ChinaSpringer2024-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/242319Gomez, Kevin Leonel; Pérez Moreno, Agustín; Meso, Jorge Gustavo; Bellardini, Flavio; Baiano, Mattia Antonio; et al.; Unraveling sauropod diversity in the Portezuelo Formation of Patagonia through a comprehensive analysis of new and existing material; Springer; BMC Ecology and Evolution; 24; 1; 7-2024; 1-162730-7182CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://bmcevolbiol.biomedcentral.com/articles/10.1186/s12862-024-02280-9info:eu-repo/semantics/altIdentifier/doi/10.1186/s12862-024-02280-9info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:00:59Zoai:ri.conicet.gov.ar:11336/242319instacron: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 10:00:59.386CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Unraveling sauropod diversity in the Portezuelo Formation of Patagonia through a comprehensive analysis of new and existing material
title Unraveling sauropod diversity in the Portezuelo Formation of Patagonia through a comprehensive analysis of new and existing material
spellingShingle Unraveling sauropod diversity in the Portezuelo Formation of Patagonia through a comprehensive analysis of new and existing material
Gomez, Kevin Leonel
sauropod diversity
Portezuelo
Titanosauriformes
title_short Unraveling sauropod diversity in the Portezuelo Formation of Patagonia through a comprehensive analysis of new and existing material
title_full Unraveling sauropod diversity in the Portezuelo Formation of Patagonia through a comprehensive analysis of new and existing material
title_fullStr Unraveling sauropod diversity in the Portezuelo Formation of Patagonia through a comprehensive analysis of new and existing material
title_full_unstemmed Unraveling sauropod diversity in the Portezuelo Formation of Patagonia through a comprehensive analysis of new and existing material
title_sort Unraveling sauropod diversity in the Portezuelo Formation of Patagonia through a comprehensive analysis of new and existing material
dc.creator.none.fl_str_mv Gomez, Kevin Leonel
Pérez Moreno, Agustín
Meso, Jorge Gustavo
Bellardini, Flavio
Baiano, Mattia Antonio
Pol, Diego
Garrido, Alberto Carlos
Kaluza, Jonatan Ezequiel
Muci, Luciana
Pittman, Michael
author Gomez, Kevin Leonel
author_facet Gomez, Kevin Leonel
Pérez Moreno, Agustín
Meso, Jorge Gustavo
Bellardini, Flavio
Baiano, Mattia Antonio
Pol, Diego
Garrido, Alberto Carlos
Kaluza, Jonatan Ezequiel
Muci, Luciana
Pittman, Michael
author_role author
author2 Pérez Moreno, Agustín
Meso, Jorge Gustavo
Bellardini, Flavio
Baiano, Mattia Antonio
Pol, Diego
Garrido, Alberto Carlos
Kaluza, Jonatan Ezequiel
Muci, Luciana
Pittman, Michael
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv sauropod diversity
Portezuelo
Titanosauriformes
topic sauropod diversity
Portezuelo
Titanosauriformes
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 Portezuelo Formation preserves an outstanding record of the upper Turonian - lower Coniacian of Gondwana. Despite the discovery of a significant amount of sauropod fossil material from the Formation, only two species have been formally described to date: Malarguesaurus florenciae and Futalognkosaurus dukei. Here we present new sauropod material mostly composed of non-articulated caudal vertebrae that belong to at least two different titanosauriforms on the basis of following features: anterior caudal vertebrae with procoelous-opistoplatyan articulations, transverse processes that reach the posterior articular face of the centrum and neural spines with a lateromedial width of ~ 50% of its anteroposterior length; anterior and middle caudal vertebra with the neural arch restricted to the anterior half of the centrum; middle caudal centrum with circular cross-section. Phylogenetic analysis recovers the new material in close relation to Malarguesaurus within a monophyletic clade sister to Somphospondily. This clade shares large pedicel height with a vertical anterior border on the middle caudal vertebrae, a vertical orientation of the neural spines on the distalmost middle caudal vertebrae and proximalmost posterior caudal vertebrae, and subequal relative lengths of the proximal ulnar condylar processes. The specimens presented here are distinct not only from Malarguesaurus and Futalognkosaurus, but also from other indeterminate titanosaur remains from the same formation. Whilst we err on the side of caution in not naming new taxa here, the two specimens significantly expand what we know about sauropods in the Turonian-Coniacian ecosystems of Patagonia, which will continue to do so as more material is discovered.
Fil: Gomez, Kevin Leonel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; Argentina
Fil: Pérez Moreno, Agustín. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. Departamento de Paleontología Invertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Meso, Jorge Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; Argentina
Fil: Bellardini, Flavio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; Argentina
Fil: Baiano, Mattia Antonio. Universidad Nacional de Río Negro; Argentina. Provincia del Neuquén. Municipalidad de Villa El Chocón. Museo Paleontológico "Ernesto Bachmann"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Pol, Diego. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Museo Argentino de Ciencias Naturales "Bernardino Rivadavia"; Argentina
Fil: Garrido, Alberto Carlos. Provincia de Neuquén. Ministerio de Energía, Ambiente y Servicios Públicos. Dirección Provincial de Minería. Museo Provincial de Ciencias Naturales Prof. "Dr. Juan A. Olsacher"; Argentina
Fil: Kaluza, Jonatan Ezequiel. Universidad Maimónides; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fundación de Historia Natural Félix de Azara; Argentina
Fil: Muci, Luciana. Universidad Nacional de Río Negro. Sede Alto Valle; Argentina
Fil: Pittman, Michael. The Chinese University of Hong Kong; China
description The Portezuelo Formation preserves an outstanding record of the upper Turonian - lower Coniacian of Gondwana. Despite the discovery of a significant amount of sauropod fossil material from the Formation, only two species have been formally described to date: Malarguesaurus florenciae and Futalognkosaurus dukei. Here we present new sauropod material mostly composed of non-articulated caudal vertebrae that belong to at least two different titanosauriforms on the basis of following features: anterior caudal vertebrae with procoelous-opistoplatyan articulations, transverse processes that reach the posterior articular face of the centrum and neural spines with a lateromedial width of ~ 50% of its anteroposterior length; anterior and middle caudal vertebra with the neural arch restricted to the anterior half of the centrum; middle caudal centrum with circular cross-section. Phylogenetic analysis recovers the new material in close relation to Malarguesaurus within a monophyletic clade sister to Somphospondily. This clade shares large pedicel height with a vertical anterior border on the middle caudal vertebrae, a vertical orientation of the neural spines on the distalmost middle caudal vertebrae and proximalmost posterior caudal vertebrae, and subequal relative lengths of the proximal ulnar condylar processes. The specimens presented here are distinct not only from Malarguesaurus and Futalognkosaurus, but also from other indeterminate titanosaur remains from the same formation. Whilst we err on the side of caution in not naming new taxa here, the two specimens significantly expand what we know about sauropods in the Turonian-Coniacian ecosystems of Patagonia, which will continue to do so as more material is discovered.
publishDate 2024
dc.date.none.fl_str_mv 2024-07
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/11336/242319
Gomez, Kevin Leonel; Pérez Moreno, Agustín; Meso, Jorge Gustavo; Bellardini, Flavio; Baiano, Mattia Antonio; et al.; Unraveling sauropod diversity in the Portezuelo Formation of Patagonia through a comprehensive analysis of new and existing material; Springer; BMC Ecology and Evolution; 24; 1; 7-2024; 1-16
2730-7182
CONICET Digital
CONICET
url http://hdl.handle.net/11336/242319
identifier_str_mv Gomez, Kevin Leonel; Pérez Moreno, Agustín; Meso, Jorge Gustavo; Bellardini, Flavio; Baiano, Mattia Antonio; et al.; Unraveling sauropod diversity in the Portezuelo Formation of Patagonia through a comprehensive analysis of new and existing material; Springer; BMC Ecology and Evolution; 24; 1; 7-2024; 1-16
2730-7182
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
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info:eu-repo/semantics/altIdentifier/doi/10.1186/s12862-024-02280-9
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
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repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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