An unexpected short tooth replacement cycle period in maresaurus coccai (plesiosauria; rhomaleosauridae) from the bajocian of Argentinean Patagonia

Autores
Matelo Mirco, Gonzalo; O'gorman, Jose Patricio; Gasparini, Zulma
Año de publicación
2024
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Rhomaleosauridae were a clade of Jurassic plesiosaurians, characterized by triangular skulls, elongated preorbital region, marked premaxillary-maxillary constriction, and intermediate body proportions between pliosauromorphs and plesiosauromorphs. Despite recent progress in the study of dental replacement in plesiosaurians, the replacement features in rhomaleosaurids have not been studied. Here, the dental features of the rhomaleosaurid Maresaurus coccai are described and analyzed based on the holotype specimen. Regarding symmetry, it was determined that M. coccai shows symmetrical replacement in the maxillary-premaxillary and asymmetrical replacement in the dentary. Additionally, the tooth replacement cycle period (TRCP) of two alveoli was determined for the dental series, with the exception of the anterior part of the left mandibular ramus, which presents an TRCP of three, an asymmetry considered here as teratology. This result indicates that the replacement cycle period (TRCP) of the two alveoli would correspond to a primitive character for Plesiosauria, observing an increase of TRCP from two to three alveoli in taxa comparatively more derived within Pliosauridae.
Fil: Matelo Mirco, Gonzalo. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina
Fil: O'gorman, Jose Patricio. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Gasparini, Zulma. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina
Materia
Rhomaleosaurus
Plesiosauria
Tooth
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/239092
Acceder
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network_name_str CONICET Digital (CONICET)
spelling An unexpected short tooth replacement cycle period in maresaurus coccai (plesiosauria; rhomaleosauridae) from the bajocian of Argentinean PatagoniaMatelo Mirco, GonzaloO'gorman, Jose PatricioGasparini, ZulmaRhomaleosaurusPlesiosauriaToothhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The Rhomaleosauridae were a clade of Jurassic plesiosaurians, characterized by triangular skulls, elongated preorbital region, marked premaxillary-maxillary constriction, and intermediate body proportions between pliosauromorphs and plesiosauromorphs. Despite recent progress in the study of dental replacement in plesiosaurians, the replacement features in rhomaleosaurids have not been studied. Here, the dental features of the rhomaleosaurid Maresaurus coccai are described and analyzed based on the holotype specimen. Regarding symmetry, it was determined that M. coccai shows symmetrical replacement in the maxillary-premaxillary and asymmetrical replacement in the dentary. Additionally, the tooth replacement cycle period (TRCP) of two alveoli was determined for the dental series, with the exception of the anterior part of the left mandibular ramus, which presents an TRCP of three, an asymmetry considered here as teratology. This result indicates that the replacement cycle period (TRCP) of the two alveoli would correspond to a primitive character for Plesiosauria, observing an increase of TRCP from two to three alveoli in taxa comparatively more derived within Pliosauridae.Fil: Matelo Mirco, Gonzalo. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; ArgentinaFil: O'gorman, Jose Patricio. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Gasparini, Zulma. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; ArgentinaUniversità degli Studi di Milano2024-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/239092Matelo Mirco, Gonzalo; O'gorman, Jose Patricio; Gasparini, Zulma; An unexpected short tooth replacement cycle period in maresaurus coccai (plesiosauria; rhomaleosauridae) from the bajocian of Argentinean Patagonia; Università degli Studi di Milano; Rivista Italiana di Paleontologia e Stratigrafia; 130; 2; 6-2024; 1-120035-6883CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://riviste.unimi.it/index.php/RIPS/article/view/22114info:eu-repo/semantics/altIdentifier/doi/10.54103/2039-4942/22114info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:04:25Zoai:ri.conicet.gov.ar:11336/239092instacron: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:34982025-09-10 13:04:25.745CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv An unexpected short tooth replacement cycle period in maresaurus coccai (plesiosauria; rhomaleosauridae) from the bajocian of Argentinean Patagonia
title An unexpected short tooth replacement cycle period in maresaurus coccai (plesiosauria; rhomaleosauridae) from the bajocian of Argentinean Patagonia
spellingShingle An unexpected short tooth replacement cycle period in maresaurus coccai (plesiosauria; rhomaleosauridae) from the bajocian of Argentinean Patagonia
Matelo Mirco, Gonzalo
Rhomaleosaurus
Plesiosauria
Tooth
title_short An unexpected short tooth replacement cycle period in maresaurus coccai (plesiosauria; rhomaleosauridae) from the bajocian of Argentinean Patagonia
title_full An unexpected short tooth replacement cycle period in maresaurus coccai (plesiosauria; rhomaleosauridae) from the bajocian of Argentinean Patagonia
title_fullStr An unexpected short tooth replacement cycle period in maresaurus coccai (plesiosauria; rhomaleosauridae) from the bajocian of Argentinean Patagonia
title_full_unstemmed An unexpected short tooth replacement cycle period in maresaurus coccai (plesiosauria; rhomaleosauridae) from the bajocian of Argentinean Patagonia
title_sort An unexpected short tooth replacement cycle period in maresaurus coccai (plesiosauria; rhomaleosauridae) from the bajocian of Argentinean Patagonia
dc.creator.none.fl_str_mv Matelo Mirco, Gonzalo
O'gorman, Jose Patricio
Gasparini, Zulma
author Matelo Mirco, Gonzalo
author_facet Matelo Mirco, Gonzalo
O'gorman, Jose Patricio
Gasparini, Zulma
author_role author
author2 O'gorman, Jose Patricio
Gasparini, Zulma
author2_role author
author
dc.subject.none.fl_str_mv Rhomaleosaurus
Plesiosauria
Tooth
topic Rhomaleosaurus
Plesiosauria
Tooth
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 Rhomaleosauridae were a clade of Jurassic plesiosaurians, characterized by triangular skulls, elongated preorbital region, marked premaxillary-maxillary constriction, and intermediate body proportions between pliosauromorphs and plesiosauromorphs. Despite recent progress in the study of dental replacement in plesiosaurians, the replacement features in rhomaleosaurids have not been studied. Here, the dental features of the rhomaleosaurid Maresaurus coccai are described and analyzed based on the holotype specimen. Regarding symmetry, it was determined that M. coccai shows symmetrical replacement in the maxillary-premaxillary and asymmetrical replacement in the dentary. Additionally, the tooth replacement cycle period (TRCP) of two alveoli was determined for the dental series, with the exception of the anterior part of the left mandibular ramus, which presents an TRCP of three, an asymmetry considered here as teratology. This result indicates that the replacement cycle period (TRCP) of the two alveoli would correspond to a primitive character for Plesiosauria, observing an increase of TRCP from two to three alveoli in taxa comparatively more derived within Pliosauridae.
Fil: Matelo Mirco, Gonzalo. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina
Fil: O'gorman, Jose Patricio. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Gasparini, Zulma. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina
description The Rhomaleosauridae were a clade of Jurassic plesiosaurians, characterized by triangular skulls, elongated preorbital region, marked premaxillary-maxillary constriction, and intermediate body proportions between pliosauromorphs and plesiosauromorphs. Despite recent progress in the study of dental replacement in plesiosaurians, the replacement features in rhomaleosaurids have not been studied. Here, the dental features of the rhomaleosaurid Maresaurus coccai are described and analyzed based on the holotype specimen. Regarding symmetry, it was determined that M. coccai shows symmetrical replacement in the maxillary-premaxillary and asymmetrical replacement in the dentary. Additionally, the tooth replacement cycle period (TRCP) of two alveoli was determined for the dental series, with the exception of the anterior part of the left mandibular ramus, which presents an TRCP of three, an asymmetry considered here as teratology. This result indicates that the replacement cycle period (TRCP) of the two alveoli would correspond to a primitive character for Plesiosauria, observing an increase of TRCP from two to three alveoli in taxa comparatively more derived within Pliosauridae.
publishDate 2024
dc.date.none.fl_str_mv 2024-06
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/11336/239092
Matelo Mirco, Gonzalo; O'gorman, Jose Patricio; Gasparini, Zulma; An unexpected short tooth replacement cycle period in maresaurus coccai (plesiosauria; rhomaleosauridae) from the bajocian of Argentinean Patagonia; Università degli Studi di Milano; Rivista Italiana di Paleontologia e Stratigrafia; 130; 2; 6-2024; 1-12
0035-6883
CONICET Digital
CONICET
url http://hdl.handle.net/11336/239092
identifier_str_mv Matelo Mirco, Gonzalo; O'gorman, Jose Patricio; Gasparini, Zulma; An unexpected short tooth replacement cycle period in maresaurus coccai (plesiosauria; rhomaleosauridae) from the bajocian of Argentinean Patagonia; Università degli Studi di Milano; Rivista Italiana di Paleontologia e Stratigrafia; 130; 2; 6-2024; 1-12
0035-6883
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://riviste.unimi.it/index.php/RIPS/article/view/22114
info:eu-repo/semantics/altIdentifier/doi/10.54103/2039-4942/22114
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Università degli Studi di Milano
publisher.none.fl_str_mv Università degli Studi di Milano
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 12.993085

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