Hyoid apparatus of Panochthus sp. (xenarthra; Glyptodontidae) from the late pleistocene of the Pampean Region (Argentina). Comparativ description and muscle reconstruction

The main function of the hyoid apparatus in mammals is to control the entry and exit of air in the body, provide support to the tongue, hold it in position and give it movement. In some species, it also participates in the modulation of sounds produced by vocal cords. Its preservation as fossil is e...

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Detalles Bibliográficos
Autores principales: Zamorano, Martín, Scillato, Gustavo Juan, Soibelzon, Esteban, Soibelzon, Leopoldo Héctor, Bonini, Ricardo Adolfo, Rodriguez, Sergio Gabriel
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: E Schweizerbartsche Verlags 2018
Materias:
GLYPTODONTIDAE
HYOID APPARATUS
PANOCHTHUS
QUATERNARY
SOUTH AMERICA
Paleontología
Ciencias de la Tierra y relacionadas con el Medio Ambiente
CIENCIAS NATURALES Y EXACTAS
Acceso en línea:http://hdl.handle.net/11336/97007
http://suquia.ffyh.unc.edu.ar/handle/11336/97007
Aporte de:
Suquía - Instituto de Antropología de Córdoba (IDACOR, CONICET y UNC) de Universidad Nacional de Córdoba
id I10-R181-11336-97007
record_format dspace
institution Universidad Nacional de Córdoba
institution_str I-10
repository_str R-181
collection Suquía - Instituto de Antropología de Córdoba (IDACOR, CONICET y UNC)
language Inglés
topic GLYPTODONTIDAE
HYOID APPARATUS
PANOCHTHUS
QUATERNARY
SOUTH AMERICA
Paleontología
Ciencias de la Tierra y relacionadas con el Medio Ambiente
CIENCIAS NATURALES Y EXACTAS
spellingShingle GLYPTODONTIDAE
HYOID APPARATUS
PANOCHTHUS
QUATERNARY
SOUTH AMERICA
Paleontología
Ciencias de la Tierra y relacionadas con el Medio Ambiente
CIENCIAS NATURALES Y EXACTAS
Zamorano, Martín
Scillato, Gustavo Juan
Soibelzon, Esteban
Soibelzon, Leopoldo Héctor
Bonini, Ricardo Adolfo
Rodriguez, Sergio Gabriel
Hyoid apparatus of Panochthus sp. (xenarthra; Glyptodontidae) from the late pleistocene of the Pampean Region (Argentina). Comparativ description and muscle reconstruction
topic_facet GLYPTODONTIDAE
HYOID APPARATUS
PANOCHTHUS
QUATERNARY
SOUTH AMERICA
Paleontología
Ciencias de la Tierra y relacionadas con el Medio Ambiente
CIENCIAS NATURALES Y EXACTAS
description The main function of the hyoid apparatus in mammals is to control the entry and exit of air in the body, provide support to the tongue, hold it in position and give it movement. In some species, it also participates in the modulation of sounds produced by vocal cords. Its preservation as fossil is exceptional and very little known. It allows proposing hypotheses about how the mentioned functions would be carried out. The finding and study of two new specimens assigned to the glyptodontid Panochthus sp., from Lujanian sediments (Late Pleistocene) of the Pampean Region, permitted: 1) to study the anatomy and propose a new organization of the hyoid apparatus in glyptodontids, 2) to describe in detail its elements (even the thyroid cartilage), 3) to compare it with materials already published of Glyptodon cf. G. clavipes, and 4) to analyze and compare the muscles' actions. In adult mammals, this apparatus is formed generally by ten bony elements, (1) stylohyals (paired), (2) epihyals (paired), (3) ceratohyals (paired), (4) thyrohyals (paired) and (5) basihyal (unpaired); and 2 paired cartilaginous elements, (a) tympanohyals and (b) chondrohyals. In glyptodonts, the elements (1), (2), (3) form the sigmohyals (paired), and (4) and (5) the V-bone (unpaired). The bony elements of Panochthus sp. are more gracile and long than those of Glyptodon cf. G. clavipes, and in the former, the musculature is more developed. The study of the new specimens suggests that Panochthus sp. could have more freedom of tongue movement than Glyptodon cf. G. clavipes, which possibly implied a different use of food resources.
format Artículo
Artículo
publishedVersion
author Zamorano, Martín
Scillato, Gustavo Juan
Soibelzon, Esteban
Soibelzon, Leopoldo Héctor
Bonini, Ricardo Adolfo
Rodriguez, Sergio Gabriel
author_facet Zamorano, Martín
Scillato, Gustavo Juan
Soibelzon, Esteban
Soibelzon, Leopoldo Héctor
Bonini, Ricardo Adolfo
Rodriguez, Sergio Gabriel
author_sort Zamorano, Martín
title Hyoid apparatus of Panochthus sp. (xenarthra; Glyptodontidae) from the late pleistocene of the Pampean Region (Argentina). Comparativ description and muscle reconstruction
title_short Hyoid apparatus of Panochthus sp. (xenarthra; Glyptodontidae) from the late pleistocene of the Pampean Region (Argentina). Comparativ description and muscle reconstruction
title_full Hyoid apparatus of Panochthus sp. (xenarthra; Glyptodontidae) from the late pleistocene of the Pampean Region (Argentina). Comparativ description and muscle reconstruction
title_fullStr Hyoid apparatus of Panochthus sp. (xenarthra; Glyptodontidae) from the late pleistocene of the Pampean Region (Argentina). Comparativ description and muscle reconstruction
title_full_unstemmed Hyoid apparatus of Panochthus sp. (xenarthra; Glyptodontidae) from the late pleistocene of the Pampean Region (Argentina). Comparativ description and muscle reconstruction
title_sort hyoid apparatus of panochthus sp. (xenarthra; glyptodontidae) from the late pleistocene of the pampean region (argentina). comparativ description and muscle reconstruction
publisher E Schweizerbartsche Verlags
publishDate 2018
url http://hdl.handle.net/11336/97007
http://suquia.ffyh.unc.edu.ar/handle/11336/97007
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