Revisiting Velocisaurus unicus Bonaparte 1991 (Theropoda, Ceratosauria, Noasauridae): inferences on the Noasauridae/Abelisauridae systematic

Autores
Baiano, Mattia Antonio; Coria, Rodolfo Anibal
Año de publicación
2020
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
In 1991, Bonaparte described Velocisaurus unicus upon an almost complete right tibia and a near complete right autopodium. He regarded this specimen a new taxon on the base of a metatarsal II and IV very mediolaterally compressed, being the metatarsal III two to three times wider than metatarsals II and IV. Brusatte and Carrano considered this taxon devoid of peculiar characters, although they kept it valid on the base of its provenance. In contrast, Brisson and colleagues reported a new specimen of this species and reinforced its validity by identifying three new autapomorphies. Indeed, all Velocisaurus’s autapomorphies cited by the aforementioned authors seem to have a rather wide distribution within Noasauridae, or even they are convergent with Abelisauridae. For instance, a triangular transverse section of the proximal end of the femur (hypertrophy of anterior muscular line) is present also in the abelisaurids Ekrixinatosaurus, Xenotarsosaurus, Skorpiovenator and Aucasaurus; the presence of transversely thin metatarsals II and IV are typical of noasaurids, however, the rod-like shape of metatarsals II mentioned by Brisson and colleagues is based on a fragmentary and weathered specimen; a phalanx IV-1 with a triangular proximal surface, and a dorsal facet narrower than the ventral one with a medial tilting is present also in Vespersaurus, Skorpiovenator and Aucasaurus. Although we regard Velocisaurus unicus as representative of a likely valid taxon, the discovery of additional specimens with new anatomical data will be essential for the taxonomy of this form.
Fil: Baiano, Mattia Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; Argentina. Provincia del Neuquén. Municipalidad de Plaza Huincul. Museo "Carmen Funes"; Argentina
Fil: Coria, Rodolfo Anibal. Provincia del Neuquén. Municipalidad de Plaza Huincul. Museo "Carmen Funes"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
II Jornadas de Paleovertebrados de la Cuenca Neuquina
Neuquén
Argentina
Universidad Nacional del Comahue
Materia
THEROPODA
ABELISAURIDAE
NOASAURIDAE
VELOCISAURUS
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:11336/202431
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Revisiting Velocisaurus unicus Bonaparte 1991 (Theropoda, Ceratosauria, Noasauridae): inferences on the Noasauridae/Abelisauridae systematicBaiano, Mattia AntonioCoria, Rodolfo AnibalTHEROPODAABELISAURIDAENOASAURIDAEVELOCISAURUShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1In 1991, Bonaparte described Velocisaurus unicus upon an almost complete right tibia and a near complete right autopodium. He regarded this specimen a new taxon on the base of a metatarsal II and IV very mediolaterally compressed, being the metatarsal III two to three times wider than metatarsals II and IV. Brusatte and Carrano considered this taxon devoid of peculiar characters, although they kept it valid on the base of its provenance. In contrast, Brisson and colleagues reported a new specimen of this species and reinforced its validity by identifying three new autapomorphies. Indeed, all Velocisaurus’s autapomorphies cited by the aforementioned authors seem to have a rather wide distribution within Noasauridae, or even they are convergent with Abelisauridae. For instance, a triangular transverse section of the proximal end of the femur (hypertrophy of anterior muscular line) is present also in the abelisaurids Ekrixinatosaurus, Xenotarsosaurus, Skorpiovenator and Aucasaurus; the presence of transversely thin metatarsals II and IV are typical of noasaurids, however, the rod-like shape of metatarsals II mentioned by Brisson and colleagues is based on a fragmentary and weathered specimen; a phalanx IV-1 with a triangular proximal surface, and a dorsal facet narrower than the ventral one with a medial tilting is present also in Vespersaurus, Skorpiovenator and Aucasaurus. Although we regard Velocisaurus unicus as representative of a likely valid taxon, the discovery of additional specimens with new anatomical data will be essential for the taxonomy of this form.Fil: Baiano, Mattia Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; Argentina. Provincia del Neuquén. Municipalidad de Plaza Huincul. Museo "Carmen Funes"; ArgentinaFil: Coria, Rodolfo Anibal. Provincia del Neuquén. Municipalidad de Plaza Huincul. Museo "Carmen Funes"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaII Jornadas de Paleovertebrados de la Cuenca NeuquinaNeuquénArgentinaUniversidad Nacional del ComahueAsociación Paleontológica Argentina2020info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectJornadaJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/202431Revisiting Velocisaurus unicus Bonaparte 1991 (Theropoda, Ceratosauria, Noasauridae): inferences on the Noasauridae/Abelisauridae systematic; II Jornadas de Paleovertebrados de la Cuenca Neuquina; Neuquén; Argentina; 2019; 5-52469-0228CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.peapaleontologica.org.ar/index.php/peapa/article/view/329Nacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:36:25Zoai:ri.conicet.gov.ar:11336/202431instacron: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 10:36:25.909CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Revisiting Velocisaurus unicus Bonaparte 1991 (Theropoda, Ceratosauria, Noasauridae): inferences on the Noasauridae/Abelisauridae systematic
title Revisiting Velocisaurus unicus Bonaparte 1991 (Theropoda, Ceratosauria, Noasauridae): inferences on the Noasauridae/Abelisauridae systematic
spellingShingle Revisiting Velocisaurus unicus Bonaparte 1991 (Theropoda, Ceratosauria, Noasauridae): inferences on the Noasauridae/Abelisauridae systematic
Baiano, Mattia Antonio
THEROPODA
ABELISAURIDAE
NOASAURIDAE
VELOCISAURUS
title_short Revisiting Velocisaurus unicus Bonaparte 1991 (Theropoda, Ceratosauria, Noasauridae): inferences on the Noasauridae/Abelisauridae systematic
title_full Revisiting Velocisaurus unicus Bonaparte 1991 (Theropoda, Ceratosauria, Noasauridae): inferences on the Noasauridae/Abelisauridae systematic
title_fullStr Revisiting Velocisaurus unicus Bonaparte 1991 (Theropoda, Ceratosauria, Noasauridae): inferences on the Noasauridae/Abelisauridae systematic
title_full_unstemmed Revisiting Velocisaurus unicus Bonaparte 1991 (Theropoda, Ceratosauria, Noasauridae): inferences on the Noasauridae/Abelisauridae systematic
title_sort Revisiting Velocisaurus unicus Bonaparte 1991 (Theropoda, Ceratosauria, Noasauridae): inferences on the Noasauridae/Abelisauridae systematic
dc.creator.none.fl_str_mv Baiano, Mattia Antonio
Coria, Rodolfo Anibal
author Baiano, Mattia Antonio
author_facet Baiano, Mattia Antonio
Coria, Rodolfo Anibal
author_role author
author2 Coria, Rodolfo Anibal
author2_role author
dc.subject.none.fl_str_mv THEROPODA
ABELISAURIDAE
NOASAURIDAE
VELOCISAURUS
topic THEROPODA
ABELISAURIDAE
NOASAURIDAE
VELOCISAURUS
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In 1991, Bonaparte described Velocisaurus unicus upon an almost complete right tibia and a near complete right autopodium. He regarded this specimen a new taxon on the base of a metatarsal II and IV very mediolaterally compressed, being the metatarsal III two to three times wider than metatarsals II and IV. Brusatte and Carrano considered this taxon devoid of peculiar characters, although they kept it valid on the base of its provenance. In contrast, Brisson and colleagues reported a new specimen of this species and reinforced its validity by identifying three new autapomorphies. Indeed, all Velocisaurus’s autapomorphies cited by the aforementioned authors seem to have a rather wide distribution within Noasauridae, or even they are convergent with Abelisauridae. For instance, a triangular transverse section of the proximal end of the femur (hypertrophy of anterior muscular line) is present also in the abelisaurids Ekrixinatosaurus, Xenotarsosaurus, Skorpiovenator and Aucasaurus; the presence of transversely thin metatarsals II and IV are typical of noasaurids, however, the rod-like shape of metatarsals II mentioned by Brisson and colleagues is based on a fragmentary and weathered specimen; a phalanx IV-1 with a triangular proximal surface, and a dorsal facet narrower than the ventral one with a medial tilting is present also in Vespersaurus, Skorpiovenator and Aucasaurus. Although we regard Velocisaurus unicus as representative of a likely valid taxon, the discovery of additional specimens with new anatomical data will be essential for the taxonomy of this form.
Fil: Baiano, Mattia Antonio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Instituto de Investigación en Paleobiología y Geología; Argentina. Provincia del Neuquén. Municipalidad de Plaza Huincul. Museo "Carmen Funes"; Argentina
Fil: Coria, Rodolfo Anibal. Provincia del Neuquén. Municipalidad de Plaza Huincul. Museo "Carmen Funes"; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
II Jornadas de Paleovertebrados de la Cuenca Neuquina
Neuquén
Argentina
Universidad Nacional del Comahue
description In 1991, Bonaparte described Velocisaurus unicus upon an almost complete right tibia and a near complete right autopodium. He regarded this specimen a new taxon on the base of a metatarsal II and IV very mediolaterally compressed, being the metatarsal III two to three times wider than metatarsals II and IV. Brusatte and Carrano considered this taxon devoid of peculiar characters, although they kept it valid on the base of its provenance. In contrast, Brisson and colleagues reported a new specimen of this species and reinforced its validity by identifying three new autapomorphies. Indeed, all Velocisaurus’s autapomorphies cited by the aforementioned authors seem to have a rather wide distribution within Noasauridae, or even they are convergent with Abelisauridae. For instance, a triangular transverse section of the proximal end of the femur (hypertrophy of anterior muscular line) is present also in the abelisaurids Ekrixinatosaurus, Xenotarsosaurus, Skorpiovenator and Aucasaurus; the presence of transversely thin metatarsals II and IV are typical of noasaurids, however, the rod-like shape of metatarsals II mentioned by Brisson and colleagues is based on a fragmentary and weathered specimen; a phalanx IV-1 with a triangular proximal surface, and a dorsal facet narrower than the ventral one with a medial tilting is present also in Vespersaurus, Skorpiovenator and Aucasaurus. Although we regard Velocisaurus unicus as representative of a likely valid taxon, the discovery of additional specimens with new anatomical data will be essential for the taxonomy of this form.
publishDate 2020
dc.date.none.fl_str_mv 2020
dc.type.none.fl_str_mv info:eu-repo/semantics/publishedVersion
info:eu-repo/semantics/conferenceObject
Jornada
Journal
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/11336/202431
Revisiting Velocisaurus unicus Bonaparte 1991 (Theropoda, Ceratosauria, Noasauridae): inferences on the Noasauridae/Abelisauridae systematic; II Jornadas de Paleovertebrados de la Cuenca Neuquina; Neuquén; Argentina; 2019; 5-5
2469-0228
CONICET Digital
CONICET
url http://hdl.handle.net/11336/202431
identifier_str_mv Revisiting Velocisaurus unicus Bonaparte 1991 (Theropoda, Ceratosauria, Noasauridae): inferences on the Noasauridae/Abelisauridae systematic; II Jornadas de Paleovertebrados de la Cuenca Neuquina; Neuquén; Argentina; 2019; 5-5
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/url/https://www.peapaleontologica.org.ar/index.php/peapa/article/view/329
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
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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score 13.070432

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