Chaetophractus tarijensis (Xenarthra, Dasypodidae) ¿Un endemismo del Valle de Tarija (Bolivia)? Implicancias paleobiogeográficas

Rodriguez-Bualó, Santiago Martín; Soibelzon, Esteban; Scarano, Alejo Carlos; Zurita, Alfredo Eduardo

doi:10.4072/rbp.2014.1.06

Cited by 3 publications

(1 citation statement)

References 17 publications

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“…In order to analyze the distribution of Dasypodidae during the Quaternary (last 2.6 Ma, Pleistocene and Holocene epochs sensu Cohen et al 2013), distributional maps were created based on specimens housed in the following paleontological, archaeological, and mastozoological collections: 1-Argentina: Museo de La Plata (La Plata); Museo Argentino de Ciencias Naturales BBernardino Rivadavia^(Buenos Aires); Museo Municipal de Ciencias Naturales de Mar del Plata BLorenzo Scaglia^(Mar del Plata); 2-Brazil: Coleção de Mamíferos Fósseis do Laboratório de Mastozoologia (Universidade Federal do Estado do Rio de Janeiro); Museu Nacional (Rio de Janeiro); Museu de Ciências Naturais (Pontifícia Universidade Católica de Minas Gerais); 3-USA: American Museum of Natural History (New York); Florida Museum of Natural History (Gainesville); Princeton Collection of Yale Peabody Museum (New Haven); 4-Bolivia: Museo Nacional Paleontológico-Arqueológico de Tarija (Tarija). The database was supplemented with information from FAUNMAP (Graham and Lundelius, 2010), published fossil records in paleontological and archaeological contexts (e.g., Vizcaíno et al 1995;Soibelzon et al 2006Soibelzon et al , 2010Soibelzon et al , 2013Soibelzon et al , 2015Soibelzon and León 2017;Loponte and Acosta 2012;Rodriguez-Bualó et al 2014;Castro 2015;Francia et al 2015;Ciancio 2016), and new records from recent field investigations in Buenos Aires Province, Argentina (e.g., southern coastal cliffs, San Pedro and Marcos Paz counties). The datasets analyzed during the current study are available in the repository mentioned above and are available from the corresponding author on reasonable request.…”

Section: Methodsmentioning

confidence: 99%

Using Paleoclimate and the Fossil Record to Explain Past and Present Distributions of Armadillos (Xenarthra, Dasypodidae)

Soibelzon

2017

J Mammal Evol

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Numerous climatic fluctuations occurred during the Cenozoic (last 66 Ma BP); some of them were drastic (e.g., during the Eocene-Oligocene boundary) while others were more gradual (e.g., late Tertiary cooling), but both have deep effect on the biotas. Armadillos are exclusively from the Americas; they have an old evolutionary history in South America and faunal replacement and/or local extinctions were detected, linked with climatic fluctuations. The global cooling of the late Eocene -early Oligocene coincides with a welldocumented faunal turnover of Dasypodinae by Euphractinae in Patagonia. During cold and arid periods of the Quaternary, Euphractinae and Tolypeutinae moved more than once to the eastern Pampean Region, and Dasypodinae moved northward to central Brazil or even further north to the Guyana Region. During interglacial periods some armadillos went extinct locally and/or moved to Patagonia (Zaedyus), central Argentina (Tolypeutes matacus, Chaetophractus vellerosus), or from the north to Mesopotamia and the Pampean Region (Dasypus). Since the end of the Pleistocene/early Holocene, human activity has strongly impacted armadillo populations. Currently, the eastern Pampean Region (Argentina) is characterized by the presence of the couple C. villosus -D. hybridus (probably established since the late Holocene), but during the Pleistocene was Z. pichiy -T. matacus while Z. pichiy -C. villosus characterized early-middle Holocene. This work serves as evidence that paleozoological studies can be used to assess responses of biological systems to large scale perturbations and is the basis for studying future species distribu-tions, in order to identify species in danger of extinction and establish management actions.

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Section: Methodsmentioning

confidence: 99%

Using Paleoclimate and the Fossil Record to Explain Past and Present Distributions of Armadillos (Xenarthra, Dasypodidae)

Soibelzon

2017

J Mammal Evol

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Chaetophractus villosus (Desmarest, 1804) (Xenarthra: Euphractinae) in Uruguay (Upper Pleistocene): Taxon age, biogeography, and paleoclimatic implications

Perea¹,

Toriño²,

Rego

et al. 2022

J Mammal Evol

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A review of the Quaternary Scelidotheriinae (Mammalia, Xenarthra, Tardigrada) from the Tarija-Padcaya basin, Bolivia

Miño-Boilini

Carlini

Zurita

et al. 2019

An. Acad. Bras. Ciênc.

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The Mylodontidae Scelidotheriinae (Mammalia, Xenarthra, Tardigrada) are a diversified clade of South American fossil ground sloths, with a wide geographic distribution, especially in high and middle latitudes. According to the last revision, the Quaternary diversity includes the genera Scelidotherium, Catonyx, and Valgipes. The clade Scelidotheriinae is well represented in the Pleistocene of the Tarija-Padcaya basin, and the first mention of these ground sloths correspond to the middle of the XIX Century. Since then, several species (i.e., Scelidotherium tarijensis, Scelidodon tarijensis, Scelidotherium capellini) have been reported as inhabiting the Tarija-Padcaya basin during the Pleistocene. Despite the abundance of fossil records of Scelidotheriinae in this area, no modern taxonomic revisions are available. In consequence, in this contribution a revision of the remains assigned to Scelidotheriinae from the Tarija-Padcaya basin is accomplished, and some biostratigraphic and geographic implications are discussed. Our results show that one single species (Catonyx tarijensis) can be recognized in the studied area, whereas a supposed smaller one (Scelidotherium patrium) actually corresponds to juvenile specimens of C. tarijensis.

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Chaetophractus tarijensis (Xenarthra, Dasypodidae) ¿Un endemismo del Valle de Tarija (Bolivia)? Implicancias paleobiogeográficas

Cited by 3 publications

References 17 publications

Using Paleoclimate and the Fossil Record to Explain Past and Present Distributions of Armadillos (Xenarthra, Dasypodidae)

Using Paleoclimate and the Fossil Record to Explain Past and Present Distributions of Armadillos (Xenarthra, Dasypodidae)

Chaetophractus villosus (Desmarest, 1804) (Xenarthra: Euphractinae) in Uruguay (Upper Pleistocene): Taxon age, biogeography, and paleoclimatic implications

A review of the Quaternary Scelidotheriinae (Mammalia, Xenarthra, Tardigrada) from the Tarija-Padcaya basin, Bolivia

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