A new fairy armadillo (Cingulata, Chlamyphoridae) from the late Miocene of Argentine Pampas: first fossil record of the most enigmatic Xenarthra

Autores
Barasoain Goñi, Daniel; Tomassini, Rodrigo Leandro; Zurita, Alfredo Eduardo; Montalvo, Claudia Inés; Superina, Mariella
Año de publicación
2019
Idioma
inglés
Tipo de recurso
documento de conferencia
Estado
versión publicada
Descripción
Recent reassessments of the systematic schemes of Cingulata, mainly based on molecular analyses, point out that its evolutionary history could be more complex than previously believed. An ancient divergence, ca. 45 Ma, was proposed for armadillos, recognizing two large monophyletic groups, Dasypodidae (including Dasypodinae) and Chlamyphoridae (including Euphractinae, Tolypeutinae, and Chlamyphorinae). Extant species included within Chlamyphorinae (fairy armadillos), Chlamyphorus truncatus Harlan, 1825, and Calyptophractus retusus Burmeister, 1863, are among the most bizarre, elusive and unknown mammals of the world, probably due to their strict fossorial behavior. Molecular data suggested the divergence of both species at ca. 17 Ma, coinciding with a marine ingression that could have stimulated cladogenesis. Here we report the first accurate fossil record of this enigmatic subfamily, coming from the Late Miocene (Arroyo Chasicó Formation; ~9 Ma) of the Argentine Pampas (southern Buenos Aires province), which represents a new genus and species. Materials (MMH-CH-87-7-100) include fixed and mobile osteoderms of the dorsal carapace, part of the rump plate, left hemimandible with complete dental series and other postcranial remains. The presence of a rump plate, ornamentation pattern and dental features allow including the fossil specimen within Chlamyphorinae. The size (~40% bigger than the extant species), larger thickness of the osteoderms and morphology of the rump plate, point towards a new taxon. The phylogenetic analysis carried out reflects the monophyly of the three known chlamyphorines, well supported by several unambiguous synapomorphies, and, in addition, includes the new fossil taxon as a sister group of the two extant species.
Fil: Barasoain Goñi, Daniel. 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. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas, Naturales y Agrimensura. Departamento de Biología. Cátedra de Paleontología; Argentina
Fil: Tomassini, Rodrigo Leandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; 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. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas, Naturales y Agrimensura. Departamento de Biología. Cátedra de Paleontología; Argentina
Fil: Montalvo, Claudia Inés. Universidad Nacional de la Pampa. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Naturales; Argentina
Fil: Superina, Mariella. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Medicina y Biología Experimental de Cuyo; Argentina
33as Jornadas Argentinas de Paleontología de Vertebrados
Córdoba
Argentina
Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Museo de Paleontología
Agencia Córdoba Cultura. Museo de Ciencias Naturales Dr. Arturo Umberto Illia
Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones en Ciencias de la Tierra
Materia
CHLAMYPHORIDAE
LATE MIOCENE
XENARTHRA
NEW GENUS AND SPECIES
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:11336/175748
Acceder
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network_acronym_str CONICETDig
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network_name_str CONICET Digital (CONICET)
spelling A new fairy armadillo (Cingulata, Chlamyphoridae) from the late Miocene of Argentine Pampas: first fossil record of the most enigmatic XenarthraBarasoain Goñi, DanielTomassini, Rodrigo LeandroZurita, Alfredo EduardoMontalvo, Claudia InésSuperina, MariellaCHLAMYPHORIDAELATE MIOCENEXENARTHRANEW GENUS AND SPECIEShttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Recent reassessments of the systematic schemes of Cingulata, mainly based on molecular analyses, point out that its evolutionary history could be more complex than previously believed. An ancient divergence, ca. 45 Ma, was proposed for armadillos, recognizing two large monophyletic groups, Dasypodidae (including Dasypodinae) and Chlamyphoridae (including Euphractinae, Tolypeutinae, and Chlamyphorinae). Extant species included within Chlamyphorinae (fairy armadillos), Chlamyphorus truncatus Harlan, 1825, and Calyptophractus retusus Burmeister, 1863, are among the most bizarre, elusive and unknown mammals of the world, probably due to their strict fossorial behavior. Molecular data suggested the divergence of both species at ca. 17 Ma, coinciding with a marine ingression that could have stimulated cladogenesis. Here we report the first accurate fossil record of this enigmatic subfamily, coming from the Late Miocene (Arroyo Chasicó Formation; ~9 Ma) of the Argentine Pampas (southern Buenos Aires province), which represents a new genus and species. Materials (MMH-CH-87-7-100) include fixed and mobile osteoderms of the dorsal carapace, part of the rump plate, left hemimandible with complete dental series and other postcranial remains. The presence of a rump plate, ornamentation pattern and dental features allow including the fossil specimen within Chlamyphorinae. The size (~40% bigger than the extant species), larger thickness of the osteoderms and morphology of the rump plate, point towards a new taxon. The phylogenetic analysis carried out reflects the monophyly of the three known chlamyphorines, well supported by several unambiguous synapomorphies, and, in addition, includes the new fossil taxon as a sister group of the two extant species.Fil: Barasoain Goñi, Daniel. 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. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas, Naturales y Agrimensura. Departamento de Biología. Cátedra de Paleontología; ArgentinaFil: Tomassini, Rodrigo Leandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; 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; Argentina. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas, Naturales y Agrimensura. Departamento de Biología. Cátedra de Paleontología; ArgentinaFil: Montalvo, Claudia Inés. Universidad Nacional de la Pampa. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Naturales; ArgentinaFil: Superina, Mariella. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Medicina y Biología Experimental de Cuyo; Argentina33as Jornadas Argentinas de Paleontología de VertebradosCórdobaArgentinaUniversidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Museo de PaleontologíaAgencia Córdoba Cultura. Museo de Ciencias Naturales Dr. Arturo Umberto IlliaConsejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones en Ciencias de la TierraAsociación Paleontológica Argentina2019info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectJornadaJournalhttp://purl.org/coar/resource_type/c_5794info:ar-repo/semantics/documentoDeConferenciaapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/175748A new fairy armadillo (Cingulata, Chlamyphoridae) from the late Miocene of Argentine Pampas: first fossil record of the most enigmatic Xenarthra; 33as Jornadas Argentinas de Paleontología de Vertebrados; Córdoba; Argentina; 2019; 4-42469-0228CONICET DigitalCONICETenghttp://aha.org.ar/wordpress/wp-content/uploads/2019/03/Cicular-JAPV.pdfinfo:eu-repo/semantics/altIdentifier/doi/10.5710/PEAPA.16.08.2019.307info:eu-repo/semantics/altIdentifier/url/https://www.peapaleontologica.org.ar/index.php/peapa/article/view/307Nacionalinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:52:00Zoai:ri.conicet.gov.ar:11336/175748instacron: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:34982025-10-15 14:52:00.757CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv A new fairy armadillo (Cingulata, Chlamyphoridae) from the late Miocene of Argentine Pampas: first fossil record of the most enigmatic Xenarthra
title A new fairy armadillo (Cingulata, Chlamyphoridae) from the late Miocene of Argentine Pampas: first fossil record of the most enigmatic Xenarthra
spellingShingle A new fairy armadillo (Cingulata, Chlamyphoridae) from the late Miocene of Argentine Pampas: first fossil record of the most enigmatic Xenarthra
Barasoain Goñi, Daniel
CHLAMYPHORIDAE
LATE MIOCENE
XENARTHRA
NEW GENUS AND SPECIES
title_short A new fairy armadillo (Cingulata, Chlamyphoridae) from the late Miocene of Argentine Pampas: first fossil record of the most enigmatic Xenarthra
title_full A new fairy armadillo (Cingulata, Chlamyphoridae) from the late Miocene of Argentine Pampas: first fossil record of the most enigmatic Xenarthra
title_fullStr A new fairy armadillo (Cingulata, Chlamyphoridae) from the late Miocene of Argentine Pampas: first fossil record of the most enigmatic Xenarthra
title_full_unstemmed A new fairy armadillo (Cingulata, Chlamyphoridae) from the late Miocene of Argentine Pampas: first fossil record of the most enigmatic Xenarthra
title_sort A new fairy armadillo (Cingulata, Chlamyphoridae) from the late Miocene of Argentine Pampas: first fossil record of the most enigmatic Xenarthra
dc.creator.none.fl_str_mv Barasoain Goñi, Daniel
Tomassini, Rodrigo Leandro
Zurita, Alfredo Eduardo
Montalvo, Claudia Inés
Superina, Mariella
author Barasoain Goñi, Daniel
author_facet Barasoain Goñi, Daniel
Tomassini, Rodrigo Leandro
Zurita, Alfredo Eduardo
Montalvo, Claudia Inés
Superina, Mariella
author_role author
author2 Tomassini, Rodrigo Leandro
Zurita, Alfredo Eduardo
Montalvo, Claudia Inés
Superina, Mariella
author2_role author
author
author
author
dc.subject.none.fl_str_mv CHLAMYPHORIDAE
LATE MIOCENE
XENARTHRA
NEW GENUS AND SPECIES
topic CHLAMYPHORIDAE
LATE MIOCENE
XENARTHRA
NEW GENUS AND SPECIES
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Recent reassessments of the systematic schemes of Cingulata, mainly based on molecular analyses, point out that its evolutionary history could be more complex than previously believed. An ancient divergence, ca. 45 Ma, was proposed for armadillos, recognizing two large monophyletic groups, Dasypodidae (including Dasypodinae) and Chlamyphoridae (including Euphractinae, Tolypeutinae, and Chlamyphorinae). Extant species included within Chlamyphorinae (fairy armadillos), Chlamyphorus truncatus Harlan, 1825, and Calyptophractus retusus Burmeister, 1863, are among the most bizarre, elusive and unknown mammals of the world, probably due to their strict fossorial behavior. Molecular data suggested the divergence of both species at ca. 17 Ma, coinciding with a marine ingression that could have stimulated cladogenesis. Here we report the first accurate fossil record of this enigmatic subfamily, coming from the Late Miocene (Arroyo Chasicó Formation; ~9 Ma) of the Argentine Pampas (southern Buenos Aires province), which represents a new genus and species. Materials (MMH-CH-87-7-100) include fixed and mobile osteoderms of the dorsal carapace, part of the rump plate, left hemimandible with complete dental series and other postcranial remains. The presence of a rump plate, ornamentation pattern and dental features allow including the fossil specimen within Chlamyphorinae. The size (~40% bigger than the extant species), larger thickness of the osteoderms and morphology of the rump plate, point towards a new taxon. The phylogenetic analysis carried out reflects the monophyly of the three known chlamyphorines, well supported by several unambiguous synapomorphies, and, in addition, includes the new fossil taxon as a sister group of the two extant species.
Fil: Barasoain Goñi, Daniel. 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. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas, Naturales y Agrimensura. Departamento de Biología. Cátedra de Paleontología; Argentina
Fil: Tomassini, Rodrigo Leandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto Geológico del Sur. Universidad Nacional del Sur. Departamento de Geología. Instituto Geológico del Sur; 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. Universidad Nacional del Nordeste. Facultad de Ciencias Exactas, Naturales y Agrimensura. Departamento de Biología. Cátedra de Paleontología; Argentina
Fil: Montalvo, Claudia Inés. Universidad Nacional de la Pampa. Facultad de Ciencias Exactas y Naturales. Departamento de Ciencias Naturales; Argentina
Fil: Superina, Mariella. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Medicina y Biología Experimental de Cuyo; Argentina
33as Jornadas Argentinas de Paleontología de Vertebrados
Córdoba
Argentina
Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Museo de Paleontología
Agencia Córdoba Cultura. Museo de Ciencias Naturales Dr. Arturo Umberto Illia
Consejo Nacional de Investigaciones Científicas y Técnicas. Centro de Investigaciones en Ciencias de la Tierra
description Recent reassessments of the systematic schemes of Cingulata, mainly based on molecular analyses, point out that its evolutionary history could be more complex than previously believed. An ancient divergence, ca. 45 Ma, was proposed for armadillos, recognizing two large monophyletic groups, Dasypodidae (including Dasypodinae) and Chlamyphoridae (including Euphractinae, Tolypeutinae, and Chlamyphorinae). Extant species included within Chlamyphorinae (fairy armadillos), Chlamyphorus truncatus Harlan, 1825, and Calyptophractus retusus Burmeister, 1863, are among the most bizarre, elusive and unknown mammals of the world, probably due to their strict fossorial behavior. Molecular data suggested the divergence of both species at ca. 17 Ma, coinciding with a marine ingression that could have stimulated cladogenesis. Here we report the first accurate fossil record of this enigmatic subfamily, coming from the Late Miocene (Arroyo Chasicó Formation; ~9 Ma) of the Argentine Pampas (southern Buenos Aires province), which represents a new genus and species. Materials (MMH-CH-87-7-100) include fixed and mobile osteoderms of the dorsal carapace, part of the rump plate, left hemimandible with complete dental series and other postcranial remains. The presence of a rump plate, ornamentation pattern and dental features allow including the fossil specimen within Chlamyphorinae. The size (~40% bigger than the extant species), larger thickness of the osteoderms and morphology of the rump plate, point towards a new taxon. The phylogenetic analysis carried out reflects the monophyly of the three known chlamyphorines, well supported by several unambiguous synapomorphies, and, in addition, includes the new fossil taxon as a sister group of the two extant species.
publishDate 2019
dc.date.none.fl_str_mv 2019
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info:eu-repo/semantics/conferenceObject
Jornada
Journal
http://purl.org/coar/resource_type/c_5794
info:ar-repo/semantics/documentoDeConferencia
status_str publishedVersion
format conferenceObject
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/175748
A new fairy armadillo (Cingulata, Chlamyphoridae) from the late Miocene of Argentine Pampas: first fossil record of the most enigmatic Xenarthra; 33as Jornadas Argentinas de Paleontología de Vertebrados; Córdoba; Argentina; 2019; 4-4
2469-0228
CONICET Digital
CONICET
url http://hdl.handle.net/11336/175748
identifier_str_mv A new fairy armadillo (Cingulata, Chlamyphoridae) from the late Miocene of Argentine Pampas: first fossil record of the most enigmatic Xenarthra; 33as Jornadas Argentinas de Paleontología de Vertebrados; Córdoba; Argentina; 2019; 4-4
2469-0228
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
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info:eu-repo/semantics/altIdentifier/doi/10.5710/PEAPA.16.08.2019.307
info:eu-repo/semantics/altIdentifier/url/https://www.peapaleontologica.org.ar/index.php/peapa/article/view/307
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dc.publisher.none.fl_str_mv Asociación Paleontológica Argentina
publisher.none.fl_str_mv Asociación Paleontológica Argentina
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repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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