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883.#.#.q: Dirección General de Publicaciones y Fomento Editorial, UNAM

850.#.#.a: Universidad Nacional Autónoma de México

856.4.0.u: http://www.revista.ib.unam.mx/index.php/bio/article/view/808/743

100.1.#.a: Zamorano, Martín; Scillato Yané, Gustavo Juan; Zurita, Alfredo Eduardo

524.#.#.a: Zamorano, Martín, et al. (2013). An enigmatic and large-sized specimen of Panochthus (Glyptodontidae, “Panochthini”) from the Ensenadan (Early-Middle Pleistocene) of the Pampean region, Argentina. Revista Mexicana de Biodiversidad; Vol. 84, núm. 3, 2013: septiembre. Recuperado de https://repositorio.unam.mx/contenidos/4109554

245.1.0.a: An enigmatic and large-sized specimen of Panochthus (Glyptodontidae, “Panochthini”) from the Ensenadan (Early-Middle Pleistocene) of the Pampean region, Argentina

502.#.#.c: Universidad Nacional Autónoma de México

561.1.#.a: Instituto de Biología, UNAM

264.#.0.c: 2013

264.#.1.c: 2013-09-26

653.#.#.a: Taxonomy; South America; Pleistocene; Glyptodontidae; diversity

506.1.#.a: La titularidad de los derechos patrimoniales de esta obra pertenece a las instituciones editoras. Su uso se rige por una licencia Creative Commons BY-NC-ND 4.0 Internacional, https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode.es, fecha de asignación de la licencia 2013-09-26, para un uso diferente consultar al responsable jurídico del repositorio por medio de falvarez@ib.unam.mx

884.#.#.k: http://www.revista.ib.unam.mx/index.php/bio/article/view/808

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041.#.7.h: eng

520.3.#.a: 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.

773.1.#.t: Revista Mexicana de Biodiversidad; Vol. 84, núm. 3 (2013): septiembre

773.1.#.o: http://www.revista.ib.unam.mx/index.php/bio

046.#.#.j: 2021-02-09 00:00:00.000000

022.#.#.a: 2007-8706; 1870-3453

310.#.#.a: Trimestral

780.1.2.t: Anales del Instituto de Biología serie Botánica y Anales del Instituto de Biología serie Zoología

264.#.1.b: Instituto de Biología, UNAM

758.#.#.1: http://www.revista.ib.unam.mx/index.php/bio

doi: https://doi.org/10.7550/rmb.33819

handle: 00acbad1e9e7af43

harvesting_date: 2020-09-23 00:00:00.0

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245.1.0.b: An enigmatic and large-sized specimen of Panochthus (Glyptodontidae, “Panochthini”) from the Ensenadan (Early-Middle Pleistocene) of the Pampean region, Argentina

last_modified: 2021-02-05 13:05:24.322

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Artículo

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

Zamorano, Martín; Scillato Yané, Gustavo Juan; Zurita, Alfredo Eduardo

Instituto de Biología, UNAM, publicado en Revista Mexicana de Biodiversidad, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Cita

Zamorano, Martín, et al. (2013). An enigmatic and large-sized specimen of Panochthus (Glyptodontidae, “Panochthini”) from the Ensenadan (Early-Middle Pleistocene) of the Pampean region, Argentina. Revista Mexicana de Biodiversidad; Vol. 84, núm. 3, 2013: septiembre. Recuperado de https://repositorio.unam.mx/contenidos/4109554

Descripción del recurso

Autor(es)
Zamorano, Martín; Scillato Yané, Gustavo Juan; Zurita, Alfredo Eduardo
Tipo
Artículo de Investigación
Área del conocimiento
Biología y Química
Título
An enigmatic and large-sized specimen of Panochthus (Glyptodontidae, “Panochthini”) from the Ensenadan (Early-Middle Pleistocene) of the Pampean region, Argentina
Fecha
2013-09-26
Resumen
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.
Tema
Taxonomy; South America; Pleistocene; Glyptodontidae; diversity
Idioma
eng
ISSN
2007-8706; 1870-3453

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