New fossil remains of Quaternary capybaras (Rodentia: Caviomorpha: Caviidae) from the intertropical region of Brazil: morphology and taxonomy

Gomes, Anny Caroliny; Lessa, Gisele; Cartelle, Cástor; Kerber, Leonardo

doi:10.1016/j.jsames.2019.01.006

Cited by 3 publications

(2 citation statements)

References 28 publications

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“…The cheek teeth of AMU-CURS-744, as well as the specimen AMU-CURS-1222, were compared with other Neogene and Quaternary hydrochoerines (Vucetich et al 2005(Vucetich et al , 2012(Vucetich et al , 2014(Vucetich et al , 2015Deschamps et al 2007;Pérez et al 2017;Gomes et al 2019;Cerdeño et al 2019). Two morphological traits of the p4 let us to assign AMU-CURS-744 to the hydrochoerine ?Hydrochoeropsis wayuu, a taxon recently described from the Pliocene of Colombia (Pérez et al 2017): (1) the h.2i and h.3i are equally deep (also shared with Hydrochoeropsis dasseni from the Pliocene of Argentina); and (2) the fifth internal flexid (h.5i) has the same wide and depth as in ?H.…”

Section: Material: a Metacarpal (Amu-curs-742) And A Distal Epiphysis Of A Metacarpal (Amu-curs-1189)mentioning

confidence: 99%

A Pliocene–Pleistocene continental biota from Venezuela

Carrillo-Briceño

Sánchez²,

Scheyer

et al. 2021

Swiss J Palaeontol

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The Pliocene–Pleistocene transition in the Neotropics is poorly understood despite the major climatic changes that occurred at the onset of the Quaternary. The San Gregorio Formation, the younger unit of the Urumaco Sequence, preserves a fauna that documents this critical transition. We report stingrays, freshwater bony fishes, amphibians, crocodiles, lizards, snakes, aquatic and terrestrial turtles, and mammals. A total of 49 taxa are reported from the Vergel Member (late Pliocene) and nine taxa from the Cocuiza Member (Early Pleistocene), with 28 and 18 taxa reported for the first time in the Urumaco sequence and Venezuela, respectively. Our findings include the first fossil record of the freshwater fishes Megaleporinus, Schizodon, Amblydoras, Scorpiodoras, and the pipesnake Anilius scytale, all from Pliocene strata. The late Pliocene and Early Pleistocene ages proposed here for the Vergel and Cocuiza members, respectively, are supported by their stratigraphic position, palynology, nannoplankton, and 86Sr/88Sr dating. Mammals from the Vergel Member are associated with the first major pulse of the Great American Biotic Interchange. In contrast to the dry conditions prevailing today, the San Gregorio Formation documents mixed open grassland/forest areas surrounding permanent freshwater systems, following the isolation of the northern South American basin from western Amazonia. These findings support the hypothesis that range contraction of many taxa to their current distribution in northern South America occurred rapidly during at least the last 1.5 million years.

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Section: Material: a Metacarpal (Amu-curs-742) And A Distal Epiphysis Of A Metacarpal (Amu-curs-1189)mentioning

confidence: 99%

A Pliocene–Pleistocene continental biota from Venezuela

Carrillo-Briceño

Sánchez²,

Scheyer

et al. 2021

Swiss J Palaeontol

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“…Subsequently, during Pleistocene times, a significant part of the current caviomorph diversity was already established, at least at the generic level. However, some genera and species became extinct (some closely related to extant forms), and other taxa had a geographic distribution different from current biogeographic patterns (e.g., Tonni, 1981 ; Vucetich & Verzi, 1999 , 2002 ; Vucetich et al, 1997 , 1999 , 2015 ; Ubilla & Rinderknecht, 2001 , 2014 , 2016 ; Ubilla et al, 2008 ; Kerber et al, 2011a , 2011b , 2014 , 2016 , 2020 ; Mayer et al, 2016 ; Kerber, 2017 ; Vezzozi & Kerber, 2017 ; Eduardo et al, 2018 ; Gomes et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

Caviomorph rodents from the Pampean region (Argentina) in the historical Santiago Roth Collection in Switzerland

Kerber

2023

Swiss J Palaeontol

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Here I reviewed the Pleistocene caviomorphs collected by Santiago Roth (collection from Catalog No. 5) and housed at the paleontological collection of the Paläontologisches Institut und Museum, Universität Zürich, Zurich (Switzerland). The fossils were found in Pleistocene strata from Buenos Aires and Santa Fé provinces (Argentina) during the late nineteenth century. The material includes craniomandibular remains assigned to Lagostomus maximus (Chinchilloidea: Chinchillidae), craniomandibular and postcranial (thoracic and sacral vertebra, left scapula, left femur, and right tibia) bones identified as Dolichotis sp. (Cavioidea: Caviidae), and a fragmented hemimandible and isolated tooth of Myocastor sp. (Octodontoidea: Echimyidae). Other rodent specimens from this collection (Ctenomys sp. and Cavia sp.) are possibly sub-recent materials.

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A Late Pleistocene capybara (Rodentia, Caviidae, Hydrochoerinae) from near Houston, Texas, USA, with a brief review of North American fossil capybaras

Baskin

Gervais

2020

Proceedings of the Academy of Natural Sciences of Philadelphia

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New fossil remains of Quaternary capybaras (Rodentia: Caviomorpha: Caviidae) from the intertropical region of Brazil: morphology and taxonomy

Cited by 3 publications

References 28 publications

A Pliocene–Pleistocene continental biota from Venezuela

A Pliocene–Pleistocene continental biota from Venezuela

Caviomorph rodents from the Pampean region (Argentina) in the historical Santiago Roth Collection in Switzerland

A Late Pleistocene capybara (Rodentia, Caviidae, Hydrochoerinae) from near Houston, Texas, USA, with a brief review of North American fossil capybaras

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