New specimen of Clypeotherium magnum Scillato-Yané (Cingulata, Xenarthra) from the Oligocene of Patagonia, Argentina
- Autores
- Gonzalez Ruiz, Laureano Raul; Zurita, Alfredo Eduardo
- Año de publicación
- 2022
- Idioma
- inglés
- Tipo de recurso
- documento de conferencia
- Estado
- versión publicada
- Descripción
- Clypeotherium magnum Scillato-Yané, the only species of that monospecific genus, is only known through its type material, represented by osteoderms from the carapace (MLP 61-IV-11-76), collected in 1960 (and described in 1977) by MLP staff at El Pajarito fossil locality in Chubut province (Sarmiento Formation, late Oligocene, Deseadan SALMA), and also by osteoderms (MCNAM) from Quebrada Fiera locality in Mendoza province (Agua de la Piedra Formation, late Oligocene, Deseadan SALMA) described and assigned to Clypeotherium sp. in 2021. A new specimen of C. magnum is identified (AMNH 96285), represented by 21 probably associate osteoderms of the carapace, collected in 1933 by AMNH staff (Scarritt Expedition led by G.G. Simpson) at Cañadón de las Víboras fossil locality in Chubut province (Sarmiento Formation, late Oligocene, Deseadan SALMA). The diagnostic characters of C. magnum, also present in the new specimen, includes: 1) osteoderms with a large flat or slightly convex central figure; 2) few peripheric figures restricted to the anterior and lateral regions of the osteoderms; 3) large foramina on the sulci that delimit the figures of the osteoderms. Two of the osteoderms are of special significance, because they belong to the laterodorsal region of the carapace, having a quadrangular outline; the exposed surface shows a “rosette” pattern, with a central figure displaced posteriorly, surrounded by 3-4 anterior large peripherical figures, and by 3 smaller posterior figures; these posterior figures, although reduced in size, are present. The remaining osteoderms show a typical “Glyptatelinae” pattern, having mostly 3 large anterior peripheral figures and the absence (or only 1) of posterior peripheral figures. The absence of posterior peripherical figures is considered a plesiomorphic character, meanwhile, the presence in Clypeotherium magnum (at least in some regions of the carapace) should be analyzed in future phylogenetical studies. This new specimen increases the geographical distribution of the genus to a third fossil locality (although still restricted to high latitudes) and the detailed description and comparison of this specimen will lead us to a better understanding of this poorly known cingulate.
Fil: Gonzalez Ruiz, Laureano Raul. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigación Esquel de Montaña y Estepa Patagónica. Universidad Nacional de la Patagonia "San Juan Bosco". Centro de Investigación Esquel de Montaña y Estepa Patagónica; Argentina
Fil: Zurita, Alfredo Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; Argentina
XXXV Jornadas Argentinas de Paleontología de Vertebrados
Trelew
Argentina
Asociación Paleontológica Argentina - Materia
-
NEW
CLYPEOTHERIUM
OLIGOCENE
PATAGONIA - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/234662
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New specimen of Clypeotherium magnum Scillato-Yané (Cingulata, Xenarthra) from the Oligocene of Patagonia, ArgentinaGonzalez Ruiz, Laureano RaulZurita, Alfredo EduardoNEWCLYPEOTHERIUMOLIGOCENEPATAGONIAhttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Clypeotherium magnum Scillato-Yané, the only species of that monospecific genus, is only known through its type material, represented by osteoderms from the carapace (MLP 61-IV-11-76), collected in 1960 (and described in 1977) by MLP staff at El Pajarito fossil locality in Chubut province (Sarmiento Formation, late Oligocene, Deseadan SALMA), and also by osteoderms (MCNAM) from Quebrada Fiera locality in Mendoza province (Agua de la Piedra Formation, late Oligocene, Deseadan SALMA) described and assigned to Clypeotherium sp. in 2021. A new specimen of C. magnum is identified (AMNH 96285), represented by 21 probably associate osteoderms of the carapace, collected in 1933 by AMNH staff (Scarritt Expedition led by G.G. Simpson) at Cañadón de las Víboras fossil locality in Chubut province (Sarmiento Formation, late Oligocene, Deseadan SALMA). The diagnostic characters of C. magnum, also present in the new specimen, includes: 1) osteoderms with a large flat or slightly convex central figure; 2) few peripheric figures restricted to the anterior and lateral regions of the osteoderms; 3) large foramina on the sulci that delimit the figures of the osteoderms. Two of the osteoderms are of special significance, because they belong to the laterodorsal region of the carapace, having a quadrangular outline; the exposed surface shows a “rosette” pattern, with a central figure displaced posteriorly, surrounded by 3-4 anterior large peripherical figures, and by 3 smaller posterior figures; these posterior figures, although reduced in size, are present. The remaining osteoderms show a typical “Glyptatelinae” pattern, having mostly 3 large anterior peripheral figures and the absence (or only 1) of posterior peripheral figures. The absence of posterior peripherical figures is considered a plesiomorphic character, meanwhile, the presence in Clypeotherium magnum (at least in some regions of the carapace) should be analyzed in future phylogenetical studies. This new specimen increases the geographical distribution of the genus to a third fossil locality (although still restricted to high latitudes) and the detailed description and comparison of this specimen will lead us to a better understanding of this poorly known cingulate.Fil: Gonzalez Ruiz, Laureano Raul. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigación Esquel de Montaña y Estepa Patagónica. Universidad Nacional de la Patagonia "San Juan Bosco". Centro de Investigación Esquel de Montaña y Estepa Patagónica; ArgentinaFil: Zurita, Alfredo Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; ArgentinaXXXV Jornadas Argentinas de Paleontología de VertebradosTrelewArgentinaAsociación Paleontológica ArgentinaAsociación Paleontológica Argentina2022info: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/11336/234662New specimen of Clypeotherium magnum Scillato-Yané (Cingulata, Xenarthra) from the Oligocene of Patagonia, Argentina; XXXV Jornadas Argentinas de Paleontología de Vertebrados; Trelew; Argentina; 2022; 30-30CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.peapaleontologica.org.ar/index.php/peapa/article/view/439/info:eu-repo/semantics/altIdentifier/doi/doi:%2010.5710/PEAPA.14.10.2022.439Nacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:10:06Zoai:ri.conicet.gov.ar:11336/234662instacron: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 10:10:07.212CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
New specimen of Clypeotherium magnum Scillato-Yané (Cingulata, Xenarthra) from the Oligocene of Patagonia, Argentina |
title |
New specimen of Clypeotherium magnum Scillato-Yané (Cingulata, Xenarthra) from the Oligocene of Patagonia, Argentina |
spellingShingle |
New specimen of Clypeotherium magnum Scillato-Yané (Cingulata, Xenarthra) from the Oligocene of Patagonia, Argentina Gonzalez Ruiz, Laureano Raul NEW CLYPEOTHERIUM OLIGOCENE PATAGONIA |
title_short |
New specimen of Clypeotherium magnum Scillato-Yané (Cingulata, Xenarthra) from the Oligocene of Patagonia, Argentina |
title_full |
New specimen of Clypeotherium magnum Scillato-Yané (Cingulata, Xenarthra) from the Oligocene of Patagonia, Argentina |
title_fullStr |
New specimen of Clypeotherium magnum Scillato-Yané (Cingulata, Xenarthra) from the Oligocene of Patagonia, Argentina |
title_full_unstemmed |
New specimen of Clypeotherium magnum Scillato-Yané (Cingulata, Xenarthra) from the Oligocene of Patagonia, Argentina |
title_sort |
New specimen of Clypeotherium magnum Scillato-Yané (Cingulata, Xenarthra) from the Oligocene of Patagonia, Argentina |
dc.creator.none.fl_str_mv |
Gonzalez Ruiz, Laureano Raul Zurita, Alfredo Eduardo |
author |
Gonzalez Ruiz, Laureano Raul |
author_facet |
Gonzalez Ruiz, Laureano Raul Zurita, Alfredo Eduardo |
author_role |
author |
author2 |
Zurita, Alfredo Eduardo |
author2_role |
author |
dc.subject.none.fl_str_mv |
NEW CLYPEOTHERIUM OLIGOCENE PATAGONIA |
topic |
NEW CLYPEOTHERIUM OLIGOCENE PATAGONIA |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.5 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Clypeotherium magnum Scillato-Yané, the only species of that monospecific genus, is only known through its type material, represented by osteoderms from the carapace (MLP 61-IV-11-76), collected in 1960 (and described in 1977) by MLP staff at El Pajarito fossil locality in Chubut province (Sarmiento Formation, late Oligocene, Deseadan SALMA), and also by osteoderms (MCNAM) from Quebrada Fiera locality in Mendoza province (Agua de la Piedra Formation, late Oligocene, Deseadan SALMA) described and assigned to Clypeotherium sp. in 2021. A new specimen of C. magnum is identified (AMNH 96285), represented by 21 probably associate osteoderms of the carapace, collected in 1933 by AMNH staff (Scarritt Expedition led by G.G. Simpson) at Cañadón de las Víboras fossil locality in Chubut province (Sarmiento Formation, late Oligocene, Deseadan SALMA). The diagnostic characters of C. magnum, also present in the new specimen, includes: 1) osteoderms with a large flat or slightly convex central figure; 2) few peripheric figures restricted to the anterior and lateral regions of the osteoderms; 3) large foramina on the sulci that delimit the figures of the osteoderms. Two of the osteoderms are of special significance, because they belong to the laterodorsal region of the carapace, having a quadrangular outline; the exposed surface shows a “rosette” pattern, with a central figure displaced posteriorly, surrounded by 3-4 anterior large peripherical figures, and by 3 smaller posterior figures; these posterior figures, although reduced in size, are present. The remaining osteoderms show a typical “Glyptatelinae” pattern, having mostly 3 large anterior peripheral figures and the absence (or only 1) of posterior peripheral figures. The absence of posterior peripherical figures is considered a plesiomorphic character, meanwhile, the presence in Clypeotherium magnum (at least in some regions of the carapace) should be analyzed in future phylogenetical studies. This new specimen increases the geographical distribution of the genus to a third fossil locality (although still restricted to high latitudes) and the detailed description and comparison of this specimen will lead us to a better understanding of this poorly known cingulate. Fil: Gonzalez Ruiz, Laureano Raul. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigación Esquel de Montaña y Estepa Patagónica. Universidad Nacional de la Patagonia "San Juan Bosco". Centro de Investigación Esquel de Montaña y Estepa Patagónica; Argentina Fil: Zurita, Alfredo Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Centro de Ecología Aplicada del Litoral. Universidad Nacional del Nordeste. Centro de Ecología Aplicada del Litoral; Argentina XXXV Jornadas Argentinas de Paleontología de Vertebrados Trelew Argentina Asociación Paleontológica Argentina |
description |
Clypeotherium magnum Scillato-Yané, the only species of that monospecific genus, is only known through its type material, represented by osteoderms from the carapace (MLP 61-IV-11-76), collected in 1960 (and described in 1977) by MLP staff at El Pajarito fossil locality in Chubut province (Sarmiento Formation, late Oligocene, Deseadan SALMA), and also by osteoderms (MCNAM) from Quebrada Fiera locality in Mendoza province (Agua de la Piedra Formation, late Oligocene, Deseadan SALMA) described and assigned to Clypeotherium sp. in 2021. A new specimen of C. magnum is identified (AMNH 96285), represented by 21 probably associate osteoderms of the carapace, collected in 1933 by AMNH staff (Scarritt Expedition led by G.G. Simpson) at Cañadón de las Víboras fossil locality in Chubut province (Sarmiento Formation, late Oligocene, Deseadan SALMA). The diagnostic characters of C. magnum, also present in the new specimen, includes: 1) osteoderms with a large flat or slightly convex central figure; 2) few peripheric figures restricted to the anterior and lateral regions of the osteoderms; 3) large foramina on the sulci that delimit the figures of the osteoderms. Two of the osteoderms are of special significance, because they belong to the laterodorsal region of the carapace, having a quadrangular outline; the exposed surface shows a “rosette” pattern, with a central figure displaced posteriorly, surrounded by 3-4 anterior large peripherical figures, and by 3 smaller posterior figures; these posterior figures, although reduced in size, are present. The remaining osteoderms show a typical “Glyptatelinae” pattern, having mostly 3 large anterior peripheral figures and the absence (or only 1) of posterior peripheral figures. The absence of posterior peripherical figures is considered a plesiomorphic character, meanwhile, the presence in Clypeotherium magnum (at least in some regions of the carapace) should be analyzed in future phylogenetical studies. This new specimen increases the geographical distribution of the genus to a third fossil locality (although still restricted to high latitudes) and the detailed description and comparison of this specimen will lead us to a better understanding of this poorly known cingulate. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022 |
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 |
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publishedVersion |
format |
conferenceObject |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/234662 New specimen of Clypeotherium magnum Scillato-Yané (Cingulata, Xenarthra) from the Oligocene of Patagonia, Argentina; XXXV Jornadas Argentinas de Paleontología de Vertebrados; Trelew; Argentina; 2022; 30-30 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/234662 |
identifier_str_mv |
New specimen of Clypeotherium magnum Scillato-Yané (Cingulata, Xenarthra) from the Oligocene of Patagonia, Argentina; XXXV Jornadas Argentinas de Paleontología de Vertebrados; Trelew; Argentina; 2022; 30-30 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
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info:eu-repo/semantics/altIdentifier/url/https://www.peapaleontologica.org.ar/index.php/peapa/article/view/439/ info:eu-repo/semantics/altIdentifier/doi/doi:%2010.5710/PEAPA.14.10.2022.439 |
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Nacional |
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Asociación Paleontológica Argentina |
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Asociación Paleontológica Argentina |
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CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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