The oldest record of Hemiauchenia Gervais and Ameghino (Mammalia, Cetartiodactyla) in South America: Comments about its paleobiogeographic and stratigraphic implications

The South American camelids belong to the Tribe Lamini; this Tribe originated in North America and arrived in South America during the ‘‘Great American Biotic Interchange’’. The goals of this paper are: (i) to describe the specimen MAM-70, the oldest record of Hemiauchenia Gervais and Ameghino in So...

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Detalles Bibliográficos
Autores principales: Gasparini, Germán Mariano, Reyes, Martín Leonardo de los, Francia, Analía, Scherer, Carolina Saldanha, Poiré, Daniel Gustavo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Paleontología
Lamini
Camelidae
Fossil record
Great American Biotic Interchange
Late Pliocene
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/104786
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-104786
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Paleontología
Lamini
Camelidae
Fossil record
Great American Biotic Interchange
Late Pliocene
spellingShingle Paleontología
Lamini
Camelidae
Fossil record
Great American Biotic Interchange
Late Pliocene
Gasparini, Germán Mariano
Reyes, Martín Leonardo de los
Francia, Analía
Scherer, Carolina Saldanha
Poiré, Daniel Gustavo
The oldest record of Hemiauchenia Gervais and Ameghino (Mammalia, Cetartiodactyla) in South America: Comments about its paleobiogeographic and stratigraphic implications
topic_facet Paleontología
Lamini
Camelidae
Fossil record
Great American Biotic Interchange
Late Pliocene
description The South American camelids belong to the Tribe Lamini; this Tribe originated in North America and arrived in South America during the ‘‘Great American Biotic Interchange’’. The goals of this paper are: (i) to describe the specimen MAM-70, the oldest record of Hemiauchenia Gervais and Ameghino in South America; (ii) to analyze this specimen from a stratigraphic point of view; (iii) to update the distribution and stratigraphic ranges of Lamini in South America; and (iv) to discuss its dispersal pattern to South America. The finding of Hemiauchenia sp. in late Pliocene Chapadmalalan sediments cropping out at the city of Olavarrı´a (Buenos Aires Province, Argentina) represents the oldest record of a Lamini taxon in South America. This finding refutes the hypotheses that consider the genus Lama as the first North American immigrant and those considering that Hemiauchenia and Palaeolama arrived in South America after the closure of the Central America land bridge, during the early–middle Pleistocene. In turn, this specimen corroborates the hypothesis of the dispersal of Lamini from North America to South America, which considered that Palaeolama dispersed after Hemiauchenia, in a later and isolated event. In addition, this finding suggests the possibility that a form closely related to the North American Hemiauchenia macrocephala could have dispersed to South America during the Pliocene, thus originating the South American forms of Hemiauchenia and Lama.
format Articulo
Articulo
author Gasparini, Germán Mariano
Reyes, Martín Leonardo de los
Francia, Analía
Scherer, Carolina Saldanha
Poiré, Daniel Gustavo
author_facet Gasparini, Germán Mariano
Reyes, Martín Leonardo de los
Francia, Analía
Scherer, Carolina Saldanha
Poiré, Daniel Gustavo
author_sort Gasparini, Germán Mariano
title The oldest record of Hemiauchenia Gervais and Ameghino (Mammalia, Cetartiodactyla) in South America: Comments about its paleobiogeographic and stratigraphic implications
title_short The oldest record of Hemiauchenia Gervais and Ameghino (Mammalia, Cetartiodactyla) in South America: Comments about its paleobiogeographic and stratigraphic implications
title_full The oldest record of Hemiauchenia Gervais and Ameghino (Mammalia, Cetartiodactyla) in South America: Comments about its paleobiogeographic and stratigraphic implications
title_fullStr The oldest record of Hemiauchenia Gervais and Ameghino (Mammalia, Cetartiodactyla) in South America: Comments about its paleobiogeographic and stratigraphic implications
title_full_unstemmed The oldest record of Hemiauchenia Gervais and Ameghino (Mammalia, Cetartiodactyla) in South America: Comments about its paleobiogeographic and stratigraphic implications
title_sort oldest record of hemiauchenia gervais and ameghino (mammalia, cetartiodactyla) in south america: comments about its paleobiogeographic and stratigraphic implications
publishDate 2017
url http://sedici.unlp.edu.ar/handle/10915/104786
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