A non-furileusaurian caudal vertebra from the Bajo de la Carpa Formation (Upper Cretaceous, Santonian) and morphological variation in the tail of Abelisauridae

Autores
Gianechini, Federico Abel; Filippi, Leonardo Sebastián; Méndez, Ariel Hernán; Garrido, Alberto Carlos
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Cerro Overo-La Invernada area in north Patagonia has provided a rich record of Cretaceous continental tetrapods in the last two decades, mainly from the Bajo de la Carpa Formation (Upper Cretaceous, Santonian). The dinosaur fauna from this area is diverse, including several new taxa, with abelisaurid theropods particularly abundant. Recently, a new isolated caudal vertebra (MAU-Pv-CO-598) was here recovered. Although fragmentary, it shows features that differentiate it from other abelisaurid remains previously found in this area. It is considered a mid-caudal vertebra and is mainly characterized by a longitudinal groove on the ventral surface of the centrum; a scarcely elevated transverse process with an anteroposteriorly expanded and laterally concave distal end; a longitudinal dorsal crest anteriorly extended from the anterior border of the neural spine; and small tubercles extended from the ends of the zygapophyses, which are considered as accessory interlocking structures between vertebrae. Some characters, such as the dorsal longitudinal crest and the accessory tubercles of the zygapophyses, are present also in the non-brachyrostran abelisaurid Majungasaurus. However, the transverse process is similar to that of caudal vertebrae of non-furileusaur brachyrostrans, such as Ilokelesia, Ekrixinatosaurus, and Skorpiovenator. A phylogenetic analysis here conducted clusters MAU-Pv-Co-598 with the latter three taxa. MAU-Pv-CO-598 comes from lower levels of the Bajo de la Carpa Formation than the furileusaurs Viavenator and Llukalkan. The presence of a specimen with non-furileusaurian affinities in this formation indicates that a possible replacement from non-furileusaur to furileusaur brachyrostrans occurred during the Santonian, after the proposed Turonian faunal turnover.
Fil: Gianechini, Federico Abel. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis; Argentina
Fil: Filippi, Leonardo Sebastián. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina
Fil: Méndez, Ariel Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; 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
Materia
ABELISAURIDAE
CAUDAL VERTEBRA
CERRO OVERO-LA INVERNADA FOSSIL AREA
PATAGONIA
UPPER CRETACEOUS
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:11336/211165
Acceder
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network_name_str CONICET Digital (CONICET)
spelling A non-furileusaurian caudal vertebra from the Bajo de la Carpa Formation (Upper Cretaceous, Santonian) and morphological variation in the tail of AbelisauridaeUna vértebra caudal no furileusauriana de la formación bajo de la carpa (santonian) y variación morfológica en la cola de los abelisauridaeGianechini, Federico AbelFilippi, Leonardo SebastiánMéndez, Ariel HernánGarrido, Alberto CarlosABELISAURIDAECAUDAL VERTEBRACERRO OVERO-LA INVERNADA FOSSIL AREAPATAGONIAUPPER CRETACEOUShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Cerro Overo-La Invernada area in north Patagonia has provided a rich record of Cretaceous continental tetrapods in the last two decades, mainly from the Bajo de la Carpa Formation (Upper Cretaceous, Santonian). The dinosaur fauna from this area is diverse, including several new taxa, with abelisaurid theropods particularly abundant. Recently, a new isolated caudal vertebra (MAU-Pv-CO-598) was here recovered. Although fragmentary, it shows features that differentiate it from other abelisaurid remains previously found in this area. It is considered a mid-caudal vertebra and is mainly characterized by a longitudinal groove on the ventral surface of the centrum; a scarcely elevated transverse process with an anteroposteriorly expanded and laterally concave distal end; a longitudinal dorsal crest anteriorly extended from the anterior border of the neural spine; and small tubercles extended from the ends of the zygapophyses, which are considered as accessory interlocking structures between vertebrae. Some characters, such as the dorsal longitudinal crest and the accessory tubercles of the zygapophyses, are present also in the non-brachyrostran abelisaurid Majungasaurus. However, the transverse process is similar to that of caudal vertebrae of non-furileusaur brachyrostrans, such as Ilokelesia, Ekrixinatosaurus, and Skorpiovenator. A phylogenetic analysis here conducted clusters MAU-Pv-Co-598 with the latter three taxa. MAU-Pv-CO-598 comes from lower levels of the Bajo de la Carpa Formation than the furileusaurs Viavenator and Llukalkan. The presence of a specimen with non-furileusaurian affinities in this formation indicates that a possible replacement from non-furileusaur to furileusaur brachyrostrans occurred during the Santonian, after the proposed Turonian faunal turnover.Fil: Gianechini, Federico Abel. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis; ArgentinaFil: Filippi, Leonardo Sebastián. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; ArgentinaFil: Méndez, Ariel Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; 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"; ArgentinaAsociación Paleontológica Argentina2022-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/211165Gianechini, Federico Abel; Filippi, Leonardo Sebastián; Méndez, Ariel Hernán; Garrido, Alberto Carlos; A non-furileusaurian caudal vertebra from the Bajo de la Carpa Formation (Upper Cretaceous, Santonian) and morphological variation in the tail of Abelisauridae; Asociación Paleontológica Argentina; Publicación Electrónica de la Asociación Paleontológica Argentina; 22; 2; 12-2022; 58-702469-0228CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.5710/PEAPA.15.10.2022.438info:eu-repo/semantics/altIdentifier/url/https://www.peapaleontologica.org.ar/index.php/peapa/article/view/438info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-12-23T13:19:10Zoai:ri.conicet.gov.ar:11336/211165instacron: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:34982025-12-23 13:19:10.458CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A non-furileusaurian caudal vertebra from the Bajo de la Carpa Formation (Upper Cretaceous, Santonian) and morphological variation in the tail of Abelisauridae
Una vértebra caudal no furileusauriana de la formación bajo de la carpa (santonian) y variación morfológica en la cola de los abelisauridae
title A non-furileusaurian caudal vertebra from the Bajo de la Carpa Formation (Upper Cretaceous, Santonian) and morphological variation in the tail of Abelisauridae
spellingShingle A non-furileusaurian caudal vertebra from the Bajo de la Carpa Formation (Upper Cretaceous, Santonian) and morphological variation in the tail of Abelisauridae
Gianechini, Federico Abel
ABELISAURIDAE
CAUDAL VERTEBRA
CERRO OVERO-LA INVERNADA FOSSIL AREA
PATAGONIA
UPPER CRETACEOUS
title_short A non-furileusaurian caudal vertebra from the Bajo de la Carpa Formation (Upper Cretaceous, Santonian) and morphological variation in the tail of Abelisauridae
title_full A non-furileusaurian caudal vertebra from the Bajo de la Carpa Formation (Upper Cretaceous, Santonian) and morphological variation in the tail of Abelisauridae
title_fullStr A non-furileusaurian caudal vertebra from the Bajo de la Carpa Formation (Upper Cretaceous, Santonian) and morphological variation in the tail of Abelisauridae
title_full_unstemmed A non-furileusaurian caudal vertebra from the Bajo de la Carpa Formation (Upper Cretaceous, Santonian) and morphological variation in the tail of Abelisauridae
title_sort A non-furileusaurian caudal vertebra from the Bajo de la Carpa Formation (Upper Cretaceous, Santonian) and morphological variation in the tail of Abelisauridae
dc.creator.none.fl_str_mv Gianechini, Federico Abel
Filippi, Leonardo Sebastián
Méndez, Ariel Hernán
Garrido, Alberto Carlos
author Gianechini, Federico Abel
author_facet Gianechini, Federico Abel
Filippi, Leonardo Sebastián
Méndez, Ariel Hernán
Garrido, Alberto Carlos
author_role author
author2 Filippi, Leonardo Sebastián
Méndez, Ariel Hernán
Garrido, Alberto Carlos
author2_role author
author
author
dc.subject.none.fl_str_mv ABELISAURIDAE
CAUDAL VERTEBRA
CERRO OVERO-LA INVERNADA FOSSIL AREA
PATAGONIA
UPPER CRETACEOUS
topic ABELISAURIDAE
CAUDAL VERTEBRA
CERRO OVERO-LA INVERNADA FOSSIL AREA
PATAGONIA
UPPER CRETACEOUS
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 Cerro Overo-La Invernada area in north Patagonia has provided a rich record of Cretaceous continental tetrapods in the last two decades, mainly from the Bajo de la Carpa Formation (Upper Cretaceous, Santonian). The dinosaur fauna from this area is diverse, including several new taxa, with abelisaurid theropods particularly abundant. Recently, a new isolated caudal vertebra (MAU-Pv-CO-598) was here recovered. Although fragmentary, it shows features that differentiate it from other abelisaurid remains previously found in this area. It is considered a mid-caudal vertebra and is mainly characterized by a longitudinal groove on the ventral surface of the centrum; a scarcely elevated transverse process with an anteroposteriorly expanded and laterally concave distal end; a longitudinal dorsal crest anteriorly extended from the anterior border of the neural spine; and small tubercles extended from the ends of the zygapophyses, which are considered as accessory interlocking structures between vertebrae. Some characters, such as the dorsal longitudinal crest and the accessory tubercles of the zygapophyses, are present also in the non-brachyrostran abelisaurid Majungasaurus. However, the transverse process is similar to that of caudal vertebrae of non-furileusaur brachyrostrans, such as Ilokelesia, Ekrixinatosaurus, and Skorpiovenator. A phylogenetic analysis here conducted clusters MAU-Pv-Co-598 with the latter three taxa. MAU-Pv-CO-598 comes from lower levels of the Bajo de la Carpa Formation than the furileusaurs Viavenator and Llukalkan. The presence of a specimen with non-furileusaurian affinities in this formation indicates that a possible replacement from non-furileusaur to furileusaur brachyrostrans occurred during the Santonian, after the proposed Turonian faunal turnover.
Fil: Gianechini, Federico Abel. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis; Argentina
Fil: Filippi, Leonardo Sebastián. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo; Argentina
Fil: Méndez, Ariel Hernán. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Centro Nacional Patagónico; 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
description The Cerro Overo-La Invernada area in north Patagonia has provided a rich record of Cretaceous continental tetrapods in the last two decades, mainly from the Bajo de la Carpa Formation (Upper Cretaceous, Santonian). The dinosaur fauna from this area is diverse, including several new taxa, with abelisaurid theropods particularly abundant. Recently, a new isolated caudal vertebra (MAU-Pv-CO-598) was here recovered. Although fragmentary, it shows features that differentiate it from other abelisaurid remains previously found in this area. It is considered a mid-caudal vertebra and is mainly characterized by a longitudinal groove on the ventral surface of the centrum; a scarcely elevated transverse process with an anteroposteriorly expanded and laterally concave distal end; a longitudinal dorsal crest anteriorly extended from the anterior border of the neural spine; and small tubercles extended from the ends of the zygapophyses, which are considered as accessory interlocking structures between vertebrae. Some characters, such as the dorsal longitudinal crest and the accessory tubercles of the zygapophyses, are present also in the non-brachyrostran abelisaurid Majungasaurus. However, the transverse process is similar to that of caudal vertebrae of non-furileusaur brachyrostrans, such as Ilokelesia, Ekrixinatosaurus, and Skorpiovenator. A phylogenetic analysis here conducted clusters MAU-Pv-Co-598 with the latter three taxa. MAU-Pv-CO-598 comes from lower levels of the Bajo de la Carpa Formation than the furileusaurs Viavenator and Llukalkan. The presence of a specimen with non-furileusaurian affinities in this formation indicates that a possible replacement from non-furileusaur to furileusaur brachyrostrans occurred during the Santonian, after the proposed Turonian faunal turnover.
publishDate 2022
dc.date.none.fl_str_mv 2022-12
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/11336/211165
Gianechini, Federico Abel; Filippi, Leonardo Sebastián; Méndez, Ariel Hernán; Garrido, Alberto Carlos; A non-furileusaurian caudal vertebra from the Bajo de la Carpa Formation (Upper Cretaceous, Santonian) and morphological variation in the tail of Abelisauridae; Asociación Paleontológica Argentina; Publicación Electrónica de la Asociación Paleontológica Argentina; 22; 2; 12-2022; 58-70
2469-0228
CONICET Digital
CONICET
url http://hdl.handle.net/11336/211165
identifier_str_mv Gianechini, Federico Abel; Filippi, Leonardo Sebastián; Méndez, Ariel Hernán; Garrido, Alberto Carlos; A non-furileusaurian caudal vertebra from the Bajo de la Carpa Formation (Upper Cretaceous, Santonian) and morphological variation in the tail of Abelisauridae; Asociación Paleontológica Argentina; Publicación Electrónica de la Asociación Paleontológica Argentina; 22; 2; 12-2022; 58-70
2469-0228
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.5710/PEAPA.15.10.2022.438
info:eu-repo/semantics/altIdentifier/url/https://www.peapaleontologica.org.ar/index.php/peapa/article/view/438
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
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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score 12.952241

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