Phylogeny and evolutionary patterns of South American octodontoid rodents

Octodontoidea is the most diverse clade of hystricognath rodents, and is richly recorded in South America since at least the Oligocene. A parsimony-based morphological phylogenetic analysis of a wide range of extant and extinct octodontoids recovered three major clades, here recognised as Echimyidae...

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Detalles Bibliográficos
Autores principales: Verzi, Diego Héctor, Olivares, Adriana Itatí, Morgan, Cecilia Clara
Formato: Articulo
Lenguaje:Inglés
Publicado: 2013
Materias:
Paleontología
Hystricognathi
Octodontoidea
Phylogeny
Divergence dates
Mammalia
Rodentia
Evolution
Cenozoic
South America
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/97553
https://ri.conicet.gov.ar/11336/34195
https://www.app.pan.pl/article/item/app20120135.html
http://www.bioone.org/doi/abs/10.4202/app.2012.0135
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-97553
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Paleontología
Hystricognathi
Octodontoidea
Phylogeny
Divergence dates
Mammalia
Rodentia
Evolution
Cenozoic
South America
spellingShingle Paleontología
Hystricognathi
Octodontoidea
Phylogeny
Divergence dates
Mammalia
Rodentia
Evolution
Cenozoic
South America
Verzi, Diego Héctor
Olivares, Adriana Itatí
Morgan, Cecilia Clara
Phylogeny and evolutionary patterns of South American octodontoid rodents
topic_facet Paleontología
Hystricognathi
Octodontoidea
Phylogeny
Divergence dates
Mammalia
Rodentia
Evolution
Cenozoic
South America
description Octodontoidea is the most diverse clade of hystricognath rodents, and is richly recorded in South America since at least the Oligocene. A parsimony-based morphological phylogenetic analysis of a wide range of extant and extinct octodontoids recovered three major clades, here recognised as Echimyidae, Octodontidae, and Abrocomidae. Taxa previously assigned to Echimyidae or Octodontoidea incertae sedis are here interpreted for the first time as early representatives of Ctenomyinae (Octodontidae), Octodontinae or Abrocomidae. Based on our results, we estimate the divergence of octodontoid families and subfamilies to have occurred during the Late Oligocene, which is consistent with molecular estimates, but older than previous inferences based on the fossil record. Contrary to previous suggestions, we show the first appearances of modern members of Abrocomidae, Octodontinae and Ctenomyinae to be distinctly decoupled from the origin of these clades, with different stages in the evolutionary history of octodontoids seemingly following distinct phases of palaeoenvironmental change. Depending on the phylogenetic pattern, fossils from the stage of differentiation bear evolutionary information that may not be provided by crown groups, thus highlighting the unique and important contribution of fossils to our understanding of macroevolutionary patterns.
format Articulo
Articulo
author Verzi, Diego Héctor
Olivares, Adriana Itatí
Morgan, Cecilia Clara
author_facet Verzi, Diego Héctor
Olivares, Adriana Itatí
Morgan, Cecilia Clara
author_sort Verzi, Diego Héctor
title Phylogeny and evolutionary patterns of South American octodontoid rodents
title_short Phylogeny and evolutionary patterns of South American octodontoid rodents
title_full Phylogeny and evolutionary patterns of South American octodontoid rodents
title_fullStr Phylogeny and evolutionary patterns of South American octodontoid rodents
title_full_unstemmed Phylogeny and evolutionary patterns of South American octodontoid rodents
title_sort phylogeny and evolutionary patterns of south american octodontoid rodents
publishDate 2013
url http://sedici.unlp.edu.ar/handle/10915/97553
https://ri.conicet.gov.ar/11336/34195
https://www.app.pan.pl/article/item/app20120135.html
http://www.bioone.org/doi/abs/10.4202/app.2012.0135
work_keys_str_mv AT verzidiegohector phylogenyandevolutionarypatternsofsouthamericanoctodontoidrodents
AT olivaresadrianaitati phylogenyandevolutionarypatternsofsouthamericanoctodontoidrodents
AT morganceciliaclara phylogenyandevolutionarypatternsofsouthamericanoctodontoidrodents
bdutipo_str Repositorios
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