Comment on “The oldest South American Cricetidae (Rodentia) and Mustelidae (Carnivora): Late Miocene faunal turnover in central Argentina and the Great American Biotic Interchange” by D.H. Verzi and C.I. Montalvo [Palaeogeography, Palaeoclimatology, Palaeoecology 267 (2008) 284–291]

Prevosti, Francisco Juan; Pardiñas, Ulyses F.J.

doi:10.1016/j.palaeo.2009.05.021

Cited by 37 publications

(29 citation statements)

References 22 publications

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“…(Pliocene? ; see Rasia and Candela, 2013 but also Prevosti and Pardiñas, 2009 for further discussion regarding the age of the Irene 'formation'), both in Buenos Aires Province.…”

Section: Lagostomus Incisusmentioning

confidence: 99%

Systematic Revision of the Vizcachas (Rodentia, Caviomorpha, Chinchillidae) from the Chapadmalal Formation, Late Pliocene of Buenos Aires Province, Argentina

Rasia

Candela

2017

Ameghiniana

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Lagostomine rodents (Caviomorpha, Chinchillidae) are very abundant in late Cenozoic vertebrate associations of the Pampean area but the study of their systematics has been mostly limited to a handful of works from the late 19 th Century and early 20 th Century. Although seven species of Lagostomus were described for the Chapadmalal Formation (late Pliocene; Buenos Aires Province, Argentina), the holotypes of these species do not present precise stratigraphic provenance and have not been studied since their original description. This study of lagostomines from the Chapadmalal Formation with precise stratigraphic provenance gives way to the recognition of at least three species: Lagostomus incisus, L. compressidens and L. euplasius. The comparative study of the holotypes of the previously recognized species in this unit indicates that 'Viscaccia indefinita' is a junior synonym of L. compressidens while 'V. loberiaense', 'V. definita' and 'V. chapalmalense' are junior synonyms of L. euplasius. The validity of 'Viscaccia arcuata' and its inclusion in the Chapadmalalan fauna has to be re-evaluated. This work clarifies part of the systematics of the genus Lagostomus, thus contributing to the comprehension of the taxonomic diversity of chinchillids during their most recent evolutionary history.

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“…(Pliocene? ; see Rasia and Candela, 2013 but also Prevosti and Pardiñas, 2009 for further discussion regarding the age of the Irene 'formation'), both in Buenos Aires Province.…”

Section: Lagostomus Incisusmentioning

confidence: 99%

Systematic Revision of the Vizcachas (Rodentia, Caviomorpha, Chinchillidae) from the Chapadmalal Formation, Late Pliocene of Buenos Aires Province, Argentina

Rasia

Candela

2017

Ameghiniana

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“…The oldest South American sigmodontine rodent fossils are found in sedimentary rocks of the Monte Hermoso Formation ( c . 5 Ma, early Pliocene) in southeastern Buenos Aires Province, Argentina (Pardiñas, D'Elía & Ortiz, 2002; Prevosti & Pardiñas, 2009). These fossils are limited to a few fragmentary specimens, but show that several sigmodontine tribes were present at that time in the continent, including Akodontini, Phyllotini and Reithrodontini (Reig, 1978; Pardiñas & Tonni, 1998).…”

Section: Fossil Historymentioning

confidence: 99%

“…Sigmodontines have a long fossil record in South America, with the oldest remains aged at about 5 Ma (Prevosti & Pardiñas, 2009). In contrast, the more ancient Patagonian fossils are from late Pleistocene deposits (e.g.…”

Section: Introductionmentioning

confidence: 99%

The evolutionary history of sigmodontine rodents in Patagonia and Tierra del Fuego

Pardiñas¹,

Teta²,

D’Elı́a³

et al. 2011

Biological Journal of the Linnean Society

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The Patagonian and Fuegian regions host a rich assemblage of sigmodontine rodents. In this article, we present a synthesis of our current understanding of their late Neogene diversification. Sigmodontine diversity in this area encompasses 16 genera and about 24 species; however, most belong to the tribes Abrotrichini and Phyllotini. Several abrotrichine genera are endemic to the region, whereas phyllotines are represented mainly by species widely distributed outside Patagonia. Two main ecogeographical assemblages of sigmodontines can be recognized: a lowland northeastern group with species mostly associated with shrub formations of the Monte Desert, and a medium to highland southwestern group of typical Patagonian elements, including several abrotrichines and a diversity of Andean forms. The pattern of latitudinal decline in species' number in sigmodontine rodents is more complex than the traditionally envisioned north to south pauperization; southern mainland Patagonia is as poor in species' number as is northern Tierra del Fuego (six species), suggesting that insularity is insufficient to explain the island assemblage. Glacial cycles may have had a major role in the control of sigmodontine richness. The fossil Fuego–Patagonian sigmodontine record is restricted to late Pleistocene–Holocene times. Remarkable events include regional extinctions of several widespread southwestern species during the latest Holocene and a reworking of micromammal assemblages, probably as a result of anthropogenic environmental changes. Two main phylogeographical patterns can be broadly associated with the northeastern and southwestern groups. The northeastern assemblage basically comprises species without phylogeographical structure, whereas the southwestern group involves several lineages with deep phylogeographical breaks. The current Fuego–Patagonian sigmodontine assemblage is mainly composed of species that colonized the area from lower latitudes and by others that have differentiated in situ. © 2011 The Linnean Society of London, Biological Journal of the Linnean Society, 2011, 103, 495–513. La región Patagónico‐Fueguina comporta un rico ensamble de roedores sigmodontinos. En este trabajo presentamos una síntesis del conocimiento sobre los procesos de diversificación del grupo durante el Neógeno tardío. La diversidad de sigmodontinos comprende 16 géneros y cerca de 24 especies; sin embargo, la mayor parte de las mismas pertenecen a las tribus Abrotrichini y Phyllotini. Varios géneros de abrotriquinos son endémicos de la región, mientras que los filotinos están en general representados por especies de amplia distribución fuera de Patagonia. Se pueden reconocer dos grandes ensambles eco‐geográficos de sigmodontinos: un grupo nor‐oriental de tierras bajas, con especies mayoritariamente asociadas a las formaciones vegetales arbustivas del Monte, y otro sud‐occidental de tierras de mediana a alta elevación, que agrupa típicos elementos patagónicos, incluyendo abrotriquinos y una diversidad de formas andinas. El patrón de disminución ...

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“…It was not until the Late Pliocene (Marplatan) that other placental carnivores (e.g., Canidae, Mustelidae) migrated to South America (Prevosti and Pardiñas 2009; for a different view, see Verzi and Montalvo 2008) in the context of the Great American Biotic Interchange (see Woodburne et al 2006;Soibelzon and Prevosti 2007). By the Early Pleistocene (Ensenadan), the placental carnivores were represented in South America (as today) by six families (i.e., Felidae, Ursidae, Canidae, Mustelidae, Mephitidae, and Procyonidae).…”

Section: Paleoecological Considerations 87mentioning

confidence: 99%

First description of milk teeth of fossil South American procyonid from the lower Chapadmalalan (Late Miocene–Early Pliocene) of “Farola Monte Hermoso,” Argentina: paleoecological considerations

Soibelzon

2010

Paläontol. Z.

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Comment on “The oldest South American Cricetidae (Rodentia) and Mustelidae (Carnivora): Late Miocene faunal turnover in central Argentina and the Great American Biotic Interchange” by D.H. Verzi and C.I. Montalvo [Palaeogeography, Palaeoclimatology, Palaeoecology 267 (2008) 284–291]

Cited by 37 publications

References 22 publications

Systematic Revision of the Vizcachas (Rodentia, Caviomorpha, Chinchillidae) from the Chapadmalal Formation, Late Pliocene of Buenos Aires Province, Argentina

Systematic Revision of the Vizcachas (Rodentia, Caviomorpha, Chinchillidae) from the Chapadmalal Formation, Late Pliocene of Buenos Aires Province, Argentina

The evolutionary history of sigmodontine rodents in Patagonia and Tierra del Fuego

First description of milk teeth of fossil South American procyonid from the lower Chapadmalalan (Late Miocene–Early Pliocene) of “Farola Monte Hermoso,” Argentina: paleoecological considerations

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