Reassessment of Laplatasaurus araukanicus (Sauropoda: titanosauria), from the late cretaceous of Patagonia, Argentina

The original materials assigned to Laplatasaurus araukanicus Huene 1929 comes from five different localities of northern Patagonia, ArgentineArgentina. These include several postcranial bones from multiple specimens and different conditions of preservation. The taxonomical status of the taxon worsen...

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Detalhes bibliográficos
Autores: Gallina, Pablo Ariel, Otero, Alejandro
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2015
País:Argentina
Recursos:Consejo Nacional de Investigaciones Científicas y Técnicas
Repositório:CONICET Digital (CONICET)
Idioma:inglês
OAI Identifier:oai:ri.conicet.gov.ar:11336/41597
Acesso em linha:http://hdl.handle.net/11336/41597
Access Level:Acceso aberto
Palavra-chave:Sauropoda
Titanosauria
Laplatasaurus
Lectotype
Late Cretaceous
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
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spelling Reassessment of Laplatasaurus araukanicus (Sauropoda: titanosauria), from the late cretaceous of Patagonia, ArgentinaGallina, Pablo ArielOtero, AlejandroSauropodaTitanosauriaLaplatasaurusLectotypeLate Cretaceoushttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1The original materials assigned to Laplatasaurus araukanicus Huene 1929 comes from five different localities of northern Patagonia, ArgentineArgentina. These include several postcranial bones from multiple specimens and different conditions of preservation. The taxonomical status of the taxon worsens with the absence of quarry maps from any of the multiple localities (avoiding the recognition of associated materials), and a proper designation of type materials in its original description. After Huene, several new materials were assigned to this taxon, although dragging taxonomic problems. In 1979, the designation of a lectotype material (one tibia and one fibula) was the first stage for the establishment of the taxon validity and constituency. However, the validity of the remaining materials assigned to Laplatasaurus stayed unresolved. Here, we review all the materials that have hitherto been assigned to this taxon in order to establish a proper systematic status, to provide a re-description of the lectotype, to discuss the validity of materials previously referred to the genus, and to include it into an updated phylogenetic data matrix for the first time. Laplatasaurus araukanicus Huene 1929 is retained only for the lectotype material. The materials from Rancho de Ávila are referred to cf. Bonitasaura sp. by both stratigraphic congruence and presence of shared diagnostic features featuresshared with that titanosaur. The other remaining materials remains are referred as Lithostrotia indet. The A phylogenetic analysis nests Laplatasaurus within Titanosauria in a clade formed by ((Laplatasaurus + Uberabatitan) + (Bonitasaura + (Futalognkosaurus + Mendozasaurus)).Fil: Gallina, Pablo Ariel. Fundación de Historia Natural Félix de Azara; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Otero, Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; ArgentinaAsociacion Paleontologica Argentina2015-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/41597Gallina, Pablo Ariel; Otero, Alejandro; Reassessment of Laplatasaurus araukanicus (Sauropoda: titanosauria), from the late cretaceous of Patagonia, Argentina; Asociacion Paleontologica Argentina; Ameghiniana; 52; 5; 6-2015; 487-5010002-70141851-8044CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/2911info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2024-05-08T13:47:31Zoai:ri.conicet.gov.ar:11336/41597instacron: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:34982024-05-08 13:47:31.452CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Reassessment of Laplatasaurus araukanicus (Sauropoda: titanosauria), from the late cretaceous of Patagonia, Argentina
title Reassessment of Laplatasaurus araukanicus (Sauropoda: titanosauria), from the late cretaceous of Patagonia, Argentina
spellingShingle Reassessment of Laplatasaurus araukanicus (Sauropoda: titanosauria), from the late cretaceous of Patagonia, Argentina
Gallina, Pablo Ariel
Sauropoda
Titanosauria
Laplatasaurus
Lectotype
Late Cretaceous
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
title_short Reassessment of Laplatasaurus araukanicus (Sauropoda: titanosauria), from the late cretaceous of Patagonia, Argentina
title_full Reassessment of Laplatasaurus araukanicus (Sauropoda: titanosauria), from the late cretaceous of Patagonia, Argentina
title_fullStr Reassessment of Laplatasaurus araukanicus (Sauropoda: titanosauria), from the late cretaceous of Patagonia, Argentina
title_full_unstemmed Reassessment of Laplatasaurus araukanicus (Sauropoda: titanosauria), from the late cretaceous of Patagonia, Argentina
title_sort Reassessment of Laplatasaurus araukanicus (Sauropoda: titanosauria), from the late cretaceous of Patagonia, Argentina
dc.creator.none.fl_str_mv Gallina, Pablo Ariel
Otero, Alejandro
author Gallina, Pablo Ariel
author_facet Gallina, Pablo Ariel
Otero, Alejandro
author_role author
author2 Otero, Alejandro
author2_role author
dc.subject.none.fl_str_mv Sauropoda
Titanosauria
Laplatasaurus
Lectotype
Late Cretaceous
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
topic Sauropoda
Titanosauria
Laplatasaurus
Lectotype
Late Cretaceous
https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
description The original materials assigned to Laplatasaurus araukanicus Huene 1929 comes from five different localities of northern Patagonia, ArgentineArgentina. These include several postcranial bones from multiple specimens and different conditions of preservation. The taxonomical status of the taxon worsens with the absence of quarry maps from any of the multiple localities (avoiding the recognition of associated materials), and a proper designation of type materials in its original description. After Huene, several new materials were assigned to this taxon, although dragging taxonomic problems. In 1979, the designation of a lectotype material (one tibia and one fibula) was the first stage for the establishment of the taxon validity and constituency. However, the validity of the remaining materials assigned to Laplatasaurus stayed unresolved. Here, we review all the materials that have hitherto been assigned to this taxon in order to establish a proper systematic status, to provide a re-description of the lectotype, to discuss the validity of materials previously referred to the genus, and to include it into an updated phylogenetic data matrix for the first time. Laplatasaurus araukanicus Huene 1929 is retained only for the lectotype material. The materials from Rancho de Ávila are referred to cf. Bonitasaura sp. by both stratigraphic congruence and presence of shared diagnostic features featuresshared with that titanosaur. The other remaining materials remains are referred as Lithostrotia indet. The A phylogenetic analysis nests Laplatasaurus within Titanosauria in a clade formed by ((Laplatasaurus + Uberabatitan) + (Bonitasaura + (Futalognkosaurus + Mendozasaurus)).
publishDate 2015
dc.date.none.fl_str_mv 2015-06
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/11336/41597
Gallina, Pablo Ariel; Otero, Alejandro; Reassessment of Laplatasaurus araukanicus (Sauropoda: titanosauria), from the late cretaceous of Patagonia, Argentina; Asociacion Paleontologica Argentina; Ameghiniana; 52; 5; 6-2015; 487-501
0002-7014
1851-8044
CONICET Digital
CONICET
url http://hdl.handle.net/11336/41597
identifier_str_mv Gallina, Pablo Ariel; Otero, Alejandro; Reassessment of Laplatasaurus araukanicus (Sauropoda: titanosauria), from the late cretaceous of Patagonia, Argentina; Asociacion Paleontologica Argentina; Ameghiniana; 52; 5; 6-2015; 487-501
0002-7014
1851-8044
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.ameghiniana.org.ar/index.php/ameghiniana/article/view/2911
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
application/pdf
dc.publisher.none.fl_str_mv Asociacion Paleontologica Argentina
publisher.none.fl_str_mv Asociacion Paleontologica Argentina
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
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 15,198674

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