A new elasmosaurid plesiosaur from the lower Maastrichtian of North Canterbury, New Zealand

Autores
Hiller, Norton; O'gorman, Jose Patricio; Otero, Rodrigo A.
Año de publicación
2014
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A postcranial specimen from the lower Maastrichtian levels of the Conway Formation, Middle Waipara River, North Canterbury, New Zealand shows clear elasmosaurid affinities, based on the articular faces, with a ventral notch, of the centra of cervical vertebrae. The ilia have some distinctive features such as a gracile shaft divided into two parts by a posterior “knee”, with the distal portion being longer than the proximal one, and the flattened distal end being slightly expanded and bearing an ovoid depression. These features differentiate this specimen from other elasmosaurids from the Weddellian Biogeographic Province, in which the ilia are known, but these are considered insufficient grounds on which to erect a new taxon. However, this specimen demonstrates a potentially greater elasmosaurid diversity in the lower Maastrichtian of the southern Hemisphere than previously appreciated. The gastrolith cluster associated with the bones has sedimentological features similar to those previously recorded in gastroliths of other elasmosaurids.
Fil: Hiller, Norton. University Of Canterbury; Nueva Zelanda. Canterbury Museum; Nueva Zelanda
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; Argentina
Fil: Otero, Rodrigo A.. Universidad de Chile; Chile
Materia
Elasmosauridae
Conway Formation
Upper Cretaceous
New Zealand
Weddellian Province
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:11336/32422
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/32422
network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling A new elasmosaurid plesiosaur from the lower Maastrichtian of North Canterbury, New ZealandHiller, NortonO'gorman, Jose PatricioOtero, Rodrigo A.ElasmosauridaeConway FormationUpper CretaceousNew ZealandWeddellian Provincehttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1A postcranial specimen from the lower Maastrichtian levels of the Conway Formation, Middle Waipara River, North Canterbury, New Zealand shows clear elasmosaurid affinities, based on the articular faces, with a ventral notch, of the centra of cervical vertebrae. The ilia have some distinctive features such as a gracile shaft divided into two parts by a posterior “knee”, with the distal portion being longer than the proximal one, and the flattened distal end being slightly expanded and bearing an ovoid depression. These features differentiate this specimen from other elasmosaurids from the Weddellian Biogeographic Province, in which the ilia are known, but these are considered insufficient grounds on which to erect a new taxon. However, this specimen demonstrates a potentially greater elasmosaurid diversity in the lower Maastrichtian of the southern Hemisphere than previously appreciated. The gastrolith cluster associated with the bones has sedimentological features similar to those previously recorded in gastroliths of other elasmosaurids.Fil: Hiller, Norton. University Of Canterbury; Nueva Zelanda. Canterbury Museum; Nueva ZelandaFil: 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; ArgentinaFil: Otero, Rodrigo A.. Universidad de Chile; ChileAcademic Press Ltd-elsevier Science Ltd2014-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/32422O'gorman, Jose Patricio; Otero, Rodrigo A.; Hiller, Norton; A new elasmosaurid plesiosaur from the lower Maastrichtian of North Canterbury, New Zealand; Academic Press Ltd-elsevier Science Ltd; Cretaceous Research; 50; 3-2014; 27-370195-6671CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.cretres.2014.03.026info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0195667114000664info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:14:49Zoai:ri.conicet.gov.ar:11336/32422instacron: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 10:14:49.696CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A new elasmosaurid plesiosaur from the lower Maastrichtian of North Canterbury, New Zealand
title A new elasmosaurid plesiosaur from the lower Maastrichtian of North Canterbury, New Zealand
spellingShingle A new elasmosaurid plesiosaur from the lower Maastrichtian of North Canterbury, New Zealand
Hiller, Norton
Elasmosauridae
Conway Formation
Upper Cretaceous
New Zealand
Weddellian Province
title_short A new elasmosaurid plesiosaur from the lower Maastrichtian of North Canterbury, New Zealand
title_full A new elasmosaurid plesiosaur from the lower Maastrichtian of North Canterbury, New Zealand
title_fullStr A new elasmosaurid plesiosaur from the lower Maastrichtian of North Canterbury, New Zealand
title_full_unstemmed A new elasmosaurid plesiosaur from the lower Maastrichtian of North Canterbury, New Zealand
title_sort A new elasmosaurid plesiosaur from the lower Maastrichtian of North Canterbury, New Zealand
dc.creator.none.fl_str_mv Hiller, Norton
O'gorman, Jose Patricio
Otero, Rodrigo A.
author Hiller, Norton
author_facet Hiller, Norton
O'gorman, Jose Patricio
Otero, Rodrigo A.
author_role author
author2 O'gorman, Jose Patricio
Otero, Rodrigo A.
author2_role author
author
dc.subject.none.fl_str_mv Elasmosauridae
Conway Formation
Upper Cretaceous
New Zealand
Weddellian Province
topic Elasmosauridae
Conway Formation
Upper Cretaceous
New Zealand
Weddellian Province
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv A postcranial specimen from the lower Maastrichtian levels of the Conway Formation, Middle Waipara River, North Canterbury, New Zealand shows clear elasmosaurid affinities, based on the articular faces, with a ventral notch, of the centra of cervical vertebrae. The ilia have some distinctive features such as a gracile shaft divided into two parts by a posterior “knee”, with the distal portion being longer than the proximal one, and the flattened distal end being slightly expanded and bearing an ovoid depression. These features differentiate this specimen from other elasmosaurids from the Weddellian Biogeographic Province, in which the ilia are known, but these are considered insufficient grounds on which to erect a new taxon. However, this specimen demonstrates a potentially greater elasmosaurid diversity in the lower Maastrichtian of the southern Hemisphere than previously appreciated. The gastrolith cluster associated with the bones has sedimentological features similar to those previously recorded in gastroliths of other elasmosaurids.
Fil: Hiller, Norton. University Of Canterbury; Nueva Zelanda. Canterbury Museum; Nueva Zelanda
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; Argentina
Fil: Otero, Rodrigo A.. Universidad de Chile; Chile
description A postcranial specimen from the lower Maastrichtian levels of the Conway Formation, Middle Waipara River, North Canterbury, New Zealand shows clear elasmosaurid affinities, based on the articular faces, with a ventral notch, of the centra of cervical vertebrae. The ilia have some distinctive features such as a gracile shaft divided into two parts by a posterior “knee”, with the distal portion being longer than the proximal one, and the flattened distal end being slightly expanded and bearing an ovoid depression. These features differentiate this specimen from other elasmosaurids from the Weddellian Biogeographic Province, in which the ilia are known, but these are considered insufficient grounds on which to erect a new taxon. However, this specimen demonstrates a potentially greater elasmosaurid diversity in the lower Maastrichtian of the southern Hemisphere than previously appreciated. The gastrolith cluster associated with the bones has sedimentological features similar to those previously recorded in gastroliths of other elasmosaurids.
publishDate 2014
dc.date.none.fl_str_mv 2014-03
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/11336/32422
O'gorman, Jose Patricio; Otero, Rodrigo A.; Hiller, Norton; A new elasmosaurid plesiosaur from the lower Maastrichtian of North Canterbury, New Zealand; Academic Press Ltd-elsevier Science Ltd; Cretaceous Research; 50; 3-2014; 27-37
0195-6671
CONICET Digital
CONICET
url http://hdl.handle.net/11336/32422
identifier_str_mv O'gorman, Jose Patricio; Otero, Rodrigo A.; Hiller, Norton; A new elasmosaurid plesiosaur from the lower Maastrichtian of North Canterbury, New Zealand; Academic Press Ltd-elsevier Science Ltd; Cretaceous Research; 50; 3-2014; 27-37
0195-6671
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.cretres.2014.03.026
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0195667114000664
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
dc.publisher.none.fl_str_mv Academic Press Ltd-elsevier Science Ltd
publisher.none.fl_str_mv Academic Press Ltd-elsevier Science Ltd
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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