An enigmatic and large-seize specimen of Panochthus (Glyptodontidae, "Panochthini") from the Ensenadan (Early-Middle Pleistocene) of the Pampean region, Argentina

Autores
Zamorano, Martín; Scillato, Gustavo Juan; Zurita, Alfredo Eduardo
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Panochthus Burmeister (Mammalia, Xenarthra, Glyptodontidae) is one of the best characterized Pleistocene genera. It is possible to recognize 2 Ensenadan (Early-Middle Pleistocene) species from the Pampean region of Argentina and Bolivia, Panochthus intermedius Lydekker and P. subintermedius Castellanos, whereas 2 species are considered as valid for the age Bonaerian-Lujanian (Middle Pleistocene-Late Pleistocene), namely P. tuberculatus Owen and P. frenzelianus Ameghino. This paper provides the first record of a skull belonging to Panochthus from Ensenadan deposits in the Pampean Region of Argentina, being the second record for the genus in this lapse. The synapomorphies that support this taxonomic interpretation are: a frontal-ventrally inclined nasal zone forming a 45º angle between the palate plane and the plane of the upper rostral zone; a cranial length/height ratio that less than 1½ of the height, without considering the descending processes of the zygomatic arch; external nasal openings with a fronto-ventral orientation. A comparative study with P. intermedius and other species from the Bonaerian-Lujanian refutes its placement among any of these; on the other hand, no cranial materials are known for the other species from the Ensenadan (P. subintermedius). Considering that the former is a large species, and that this skull corresponds undoubtedly to a species of Panochthus of large dimensions, the most parsimonious taxonomic hypothesis is to tentatively assign the material MLP 84-IX-2-11 to Panochthus cf. subintermedius. Future findings of more complete materials would provide support or refute this hypothesis.
Fil: Zamorano, Martín. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina
Fil: Scillato, Gustavo Juan. Universidad Nacional de la Plata. Facultad de Cs.naturales y Museo. Div.paleontologia Vertebrados; Argentina
Fil: Zurita, Alfredo Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Centro de Ecologia Aplicada del Litoral (i); Argentina
Materia
South America
Pleistocene
Glyptodontidae
Panochthus
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/7523
Acceder
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network_name_str CONICET Digital (CONICET)
spelling An enigmatic and large-seize specimen of Panochthus (Glyptodontidae, "Panochthini") from the Ensenadan (Early-Middle Pleistocene) of the Pampean region, ArgentinaUn enigmático gran ejemplar de Panochthus (Glyptodontidae, “Panochthini”) del Ensenadense (Pleistoceno Temprano-Medio) de la región pampeana de ArgentinaZamorano, MartínScillato, Gustavo JuanZurita, Alfredo EduardoSouth AmericaPleistoceneGlyptodontidaePanochthushttps://purl.org/becyt/ford/1.5https://purl.org/becyt/ford/1Panochthus Burmeister (Mammalia, Xenarthra, Glyptodontidae) is one of the best characterized Pleistocene genera. It is possible to recognize 2 Ensenadan (Early-Middle Pleistocene) species from the Pampean region of Argentina and Bolivia, Panochthus intermedius Lydekker and P. subintermedius Castellanos, whereas 2 species are considered as valid for the age Bonaerian-Lujanian (Middle Pleistocene-Late Pleistocene), namely P. tuberculatus Owen and P. frenzelianus Ameghino. This paper provides the first record of a skull belonging to Panochthus from Ensenadan deposits in the Pampean Region of Argentina, being the second record for the genus in this lapse. The synapomorphies that support this taxonomic interpretation are: a frontal-ventrally inclined nasal zone forming a 45º angle between the palate plane and the plane of the upper rostral zone; a cranial length/height ratio that less than 1½ of the height, without considering the descending processes of the zygomatic arch; external nasal openings with a fronto-ventral orientation. A comparative study with P. intermedius and other species from the Bonaerian-Lujanian refutes its placement among any of these; on the other hand, no cranial materials are known for the other species from the Ensenadan (P. subintermedius). Considering that the former is a large species, and that this skull corresponds undoubtedly to a species of Panochthus of large dimensions, the most parsimonious taxonomic hypothesis is to tentatively assign the material MLP 84-IX-2-11 to Panochthus cf. subintermedius. Future findings of more complete materials would provide support or refute this hypothesis.Fil: Zamorano, Martín. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; ArgentinaFil: Scillato, Gustavo Juan. Universidad Nacional de la Plata. Facultad de Cs.naturales y Museo. Div.paleontologia Vertebrados; ArgentinaFil: Zurita, Alfredo Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Centro de Ecologia Aplicada del Litoral (i); ArgentinaInst Biologia2013-07info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/7523Zamorano, Martín; Scillato, Gustavo Juan; Zurita, Alfredo Eduardo; An enigmatic and large-seize specimen of Panochthus (Glyptodontidae, "Panochthini") from the Ensenadan (Early-Middle Pleistocene) of the Pampean region, Argentina; Inst Biologia; Revista Mexicana de Biodiversidad; 84; 3; 7-2013; 847-8541870-3453enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1870345313729117info:eu-repo/semantics/altIdentifier/doi/10.7550/rmb.33819info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-10T13:07:49Zoai:ri.conicet.gov.ar:11336/7523instacron: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:34982025-09-10 13:07:49.867CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv An enigmatic and large-seize specimen of Panochthus (Glyptodontidae, "Panochthini") from the Ensenadan (Early-Middle Pleistocene) of the Pampean region, Argentina
Un enigmático gran ejemplar de Panochthus (Glyptodontidae, “Panochthini”) del Ensenadense (Pleistoceno Temprano-Medio) de la región pampeana de Argentina
title An enigmatic and large-seize specimen of Panochthus (Glyptodontidae, "Panochthini") from the Ensenadan (Early-Middle Pleistocene) of the Pampean region, Argentina
spellingShingle An enigmatic and large-seize specimen of Panochthus (Glyptodontidae, "Panochthini") from the Ensenadan (Early-Middle Pleistocene) of the Pampean region, Argentina
Zamorano, Martín
South America
Pleistocene
Glyptodontidae
Panochthus
title_short An enigmatic and large-seize specimen of Panochthus (Glyptodontidae, "Panochthini") from the Ensenadan (Early-Middle Pleistocene) of the Pampean region, Argentina
title_full An enigmatic and large-seize specimen of Panochthus (Glyptodontidae, "Panochthini") from the Ensenadan (Early-Middle Pleistocene) of the Pampean region, Argentina
title_fullStr An enigmatic and large-seize specimen of Panochthus (Glyptodontidae, "Panochthini") from the Ensenadan (Early-Middle Pleistocene) of the Pampean region, Argentina
title_full_unstemmed An enigmatic and large-seize specimen of Panochthus (Glyptodontidae, "Panochthini") from the Ensenadan (Early-Middle Pleistocene) of the Pampean region, Argentina
title_sort An enigmatic and large-seize specimen of Panochthus (Glyptodontidae, "Panochthini") from the Ensenadan (Early-Middle Pleistocene) of the Pampean region, Argentina
dc.creator.none.fl_str_mv Zamorano, Martín
Scillato, Gustavo Juan
Zurita, Alfredo Eduardo
author Zamorano, Martín
author_facet Zamorano, Martín
Scillato, Gustavo Juan
Zurita, Alfredo Eduardo
author_role author
author2 Scillato, Gustavo Juan
Zurita, Alfredo Eduardo
author2_role author
author
dc.subject.none.fl_str_mv South America
Pleistocene
Glyptodontidae
Panochthus
topic South America
Pleistocene
Glyptodontidae
Panochthus
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.5
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Panochthus Burmeister (Mammalia, Xenarthra, Glyptodontidae) is one of the best characterized Pleistocene genera. It is possible to recognize 2 Ensenadan (Early-Middle Pleistocene) species from the Pampean region of Argentina and Bolivia, Panochthus intermedius Lydekker and P. subintermedius Castellanos, whereas 2 species are considered as valid for the age Bonaerian-Lujanian (Middle Pleistocene-Late Pleistocene), namely P. tuberculatus Owen and P. frenzelianus Ameghino. This paper provides the first record of a skull belonging to Panochthus from Ensenadan deposits in the Pampean Region of Argentina, being the second record for the genus in this lapse. The synapomorphies that support this taxonomic interpretation are: a frontal-ventrally inclined nasal zone forming a 45º angle between the palate plane and the plane of the upper rostral zone; a cranial length/height ratio that less than 1½ of the height, without considering the descending processes of the zygomatic arch; external nasal openings with a fronto-ventral orientation. A comparative study with P. intermedius and other species from the Bonaerian-Lujanian refutes its placement among any of these; on the other hand, no cranial materials are known for the other species from the Ensenadan (P. subintermedius). Considering that the former is a large species, and that this skull corresponds undoubtedly to a species of Panochthus of large dimensions, the most parsimonious taxonomic hypothesis is to tentatively assign the material MLP 84-IX-2-11 to Panochthus cf. subintermedius. Future findings of more complete materials would provide support or refute this hypothesis.
Fil: Zamorano, Martín. Universidad Nacional de la Plata. Facultad de Ciencias Naturales y Museo. División Paleontología Vertebrados; Argentina
Fil: Scillato, Gustavo Juan. Universidad Nacional de la Plata. Facultad de Cs.naturales y Museo. Div.paleontologia Vertebrados; Argentina
Fil: Zurita, Alfredo Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Nordeste. Centro de Ecologia Aplicada del Litoral (i); Argentina
description Panochthus Burmeister (Mammalia, Xenarthra, Glyptodontidae) is one of the best characterized Pleistocene genera. It is possible to recognize 2 Ensenadan (Early-Middle Pleistocene) species from the Pampean region of Argentina and Bolivia, Panochthus intermedius Lydekker and P. subintermedius Castellanos, whereas 2 species are considered as valid for the age Bonaerian-Lujanian (Middle Pleistocene-Late Pleistocene), namely P. tuberculatus Owen and P. frenzelianus Ameghino. This paper provides the first record of a skull belonging to Panochthus from Ensenadan deposits in the Pampean Region of Argentina, being the second record for the genus in this lapse. The synapomorphies that support this taxonomic interpretation are: a frontal-ventrally inclined nasal zone forming a 45º angle between the palate plane and the plane of the upper rostral zone; a cranial length/height ratio that less than 1½ of the height, without considering the descending processes of the zygomatic arch; external nasal openings with a fronto-ventral orientation. A comparative study with P. intermedius and other species from the Bonaerian-Lujanian refutes its placement among any of these; on the other hand, no cranial materials are known for the other species from the Ensenadan (P. subintermedius). Considering that the former is a large species, and that this skull corresponds undoubtedly to a species of Panochthus of large dimensions, the most parsimonious taxonomic hypothesis is to tentatively assign the material MLP 84-IX-2-11 to Panochthus cf. subintermedius. Future findings of more complete materials would provide support or refute this hypothesis.
publishDate 2013
dc.date.none.fl_str_mv 2013-07
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/11336/7523
Zamorano, Martín; Scillato, Gustavo Juan; Zurita, Alfredo Eduardo; An enigmatic and large-seize specimen of Panochthus (Glyptodontidae, "Panochthini") from the Ensenadan (Early-Middle Pleistocene) of the Pampean region, Argentina; Inst Biologia; Revista Mexicana de Biodiversidad; 84; 3; 7-2013; 847-854
1870-3453
url http://hdl.handle.net/11336/7523
identifier_str_mv Zamorano, Martín; Scillato, Gustavo Juan; Zurita, Alfredo Eduardo; An enigmatic and large-seize specimen of Panochthus (Glyptodontidae, "Panochthini") from the Ensenadan (Early-Middle Pleistocene) of the Pampean region, Argentina; Inst Biologia; Revista Mexicana de Biodiversidad; 84; 3; 7-2013; 847-854
1870-3453
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S1870345313729117
info:eu-repo/semantics/altIdentifier/doi/10.7550/rmb.33819
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Inst Biologia
publisher.none.fl_str_mv Inst Biologia
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 12.993085

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