El registro de Lestodelphys Tate, 1934 (Didelphimorphia, Didelphidae) en el Pleistoceno tardío del noreste de la Provincia de Buenos Aires, Argentina

Abstract

AbstrAct

Amazonia as the Origin and Diversification Area of Didelphidae (Mammalia: Metatheria), and a Review of the Fossil Record of the Clade

“…Among the Thylamyni, Thylamys is found in the Montehermosan of Buenos Aires Province (Mones 1980;Deschamps and Tomassini 2016), and Lestodelphys in the Marplatan of the same province (Goin 1999;Martinelli et al 2013); also, an indeterminate Thylamini is recorded in the late Pliocene (Marplatan) of the northwestern Jujuy Province (Ortiz et al 2012).…”

“…1, putative Didelphidae from the Argentine Patagonia (Goin et al 2007); 2, Marmosa laventica from the Peruvian Amazon (Antoine et al 2013); 3, Ma. laventica from Colombia (Marshall 1976;Goin 1997); 4, Thylamys minutus and Thylamys colombianus from Colombia (Goin 1997); 5, 'marmosid didelphimorphian' from the Peruvian Amazon (Antoine et al 2016); 6, didelphid or didelphoid from central Argentina (Reig, 1957); 7, Thylatheridium from northwestern Argentina (Contreras and Baraldo 2011); 8, indeterminate didelphid from northwestern Argentina (Contreras and Baraldo 2011); 9, Zygolestes paranensis from the Mesopotamiense of Argentina (Goin et al 2013); 10, Philander entrerianus and Chironectes from the Mesopotamiense of Argentina (Goin et al 2013); 11, Thylamys pinei, Thylamys zetti, and Zygolestes tatei from La Pampa Province, Argentina (Goin et al 2000); 12, Hyperdidelphys pattersoni and Lutreolina from La Pampa Province, Argentina (Goin et al 2000); 13, Lutreolina materdei from the Peruvian side of Acre River (Goin and de los Reyes 2011); 14, Didelphis solimonensis from the Brazilian side of Acre River (Cozzuol et al 2006); 15, indeterminate Didelphidae from the Mendoza Province, Argentina (Garrido et al 2014;Chiesa et al 2019); 16, Thylamys from the Buenos Aires Province, Argen-tina (Mones 1980;Deschamps and Tomassini 2016); 17, Lestodelphys from the Buenos Aires Province, Argentina (Goin 1999;Martinelli et al 2013); 18, indeterminate Thylamini from Jujuy Province, Argentina (Ortiz et al 2012); 19, Marmosa from the Buenos Aires Province, Argentina (Marshall 1976); 20, Thylatheridium cristatum and Thylatheridium pascuali from the Buenos Aires Province, Argentina (Goin 1999;Deschamps and Tomassini 2016); 21, Lutreolina from the Buenos Aires, Córdoba, and Catamarca provinces, Argentina (Goin and Pardiñas 1996; Goin and de los Reyes 2011); 22, Thylophorops from the Buenos Aires and Córdoba provinces, Argentina (Goin and Pardiñas 1996;Goin 1999;Tauber 2000;…”

Regional Extinctions and Quaternary Shifts in the Geographic Range of Lestodelphys halli, the Southernmost Living Marsupial: Clues for Its Conservation

“…Trapped specimens and those recovered from owl pellets are housed at Colección de Material de Egagrópilas y Afines “Elio Massoia” (CNP-E) and Colección de Mamíferos (CNP), both from Centro Nacional Patagónico, Puerto Madryn, Chubut, Argentina; Museo Argentino de Ciencias Naturales “Bernardino Rivadavia” (MACN), Ciudad Autónoma de Buenos Aires, Argentina; and Laboratorio de Investigaciones en Evolución y Biodiversidad (LIEB), Universidad Nacional de la Patagonia San Juan Bosco, Esquel, Chubut, Argentina. The paleontological data used to generate our models were based on the fossils collected in the field and records retrieved from the literature [ 15 , 17 , 21 ]. The fossils collected were housed at CNP-E.…”

“…As part of the Pleistocene records, we also included those referred to † Lestodelphys juga [ 30 ], a taxon alternatively considered as valid [ 2 , 21 ] or suggested as a junior synonym of L . halli [ 17 ]. We accounted for 47 fossil localities ( Table 1 ) and 124 current localities ( Table 2 ).…”

“…Contrasting with most living South American marsupials, Lestodelphys halli inhabits dry and open environments in southern South America ( Fig 1 ) [ 5 , 14 ] and also has a rich paleontological record [ 15 – 17 ]. Fossils show that the species lived in most of the Patagonian and Pampean regions during the Quaternary, reaching Central Argentina as far north as 32° S [ 2 , 15 , 18 – 20 ].…”