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
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/234662

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network_name_str CONICET Digital (CONICET)
spelling 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
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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
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