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By Francisco J. Goin, Michael O. Woodburne, Ana Natalia Zimicz, Gabriel M. Martin, Laura Chornogubsky

This booklet summarizes significant elements of the evolution of South American metatherians, together with their epistemologic, phylogenetic, biogeographic, faunal, tectonic, paleoclimatic, and metabolic contexts. a quick assessment of the evolution of every significant South American lineage ("Ameridelphia", Sparassodonta, Didelphimorphia, Paucituberculata, Microbiotheria, and Polydolopimorphia) is supplied. it really is argued that as a result of physiological constraints, metatherian evolution heavily the stipulations imposed by means of international temperatures. quite often phrases, throughout the Paleocene and the early Eocene a number of radiations of metatherian lineages happened, with many adaptive forms exploiting insectivorous, frugivorous, and omnivorous adaptive zones. In flip, a mix of generalized and really expert kinds, the latter in general exploiting carnivorous and granivorous-folivorous adaptive zones, characterised the second one half the Cenozoic. In either sessions, weather was once the serious driving force in their radiation and turnovers.

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Extra resources for A Brief History of South American Metatherians: Evolutionary Contexts and Intercontinental Dispersals

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Zool J Linn Soc 131:481–496 Sánchez-Villagra MR (2012) Why are there fewer marsupials than placentals? On the relevance of geography and physiology to evolutionary patterns of mammalian diversity and disparity. J Mammal Evol. 1007/s10914-012-9220-3 Sánchez-Villagra MR, Kay RF (1997) A skull of Proargyrolagus, the oldest argyrolagid (Late Oligocene Salla Beds, Bolivia), with brief comments concerning its paleobiology. J Vert Paleontol 17:717–724 Sánchez-Villagra MR, Kay RF, Anaya-Daza F (2000) Cranial anatomy and palaeobiology of the miocene marsupial Hondalagus altiplanensis and a phylogeny of argyrolagids.

5c). Recent didelphimorphs are grouped in the family Didelphidae , which has been recently subdivided into four subfamilies: Glironiinae, Caluromyinae, Hyladelphinae, and Didelphinae (Voss and Jansa 2009). The subfamily Didelphinae is distributed from 48°N to 48°S, with the highest diversity in tropical and subtropical South America (Brown 2004; Birney and Monjeau 2003; Martin 2012; Fig. 6a). Species of the subfamily Caluromyinae range from 18°N to 30°S (Fig. 6b), in forested habitats of the Neotropical Region (sensu Morrone 2004, 2006; see Chap.

In: Suáres Soruco R (ed) Fósiles y facies de Bolivia, vol 1: Vertebrados. Rev Técn Yacimientos Petrolíferos Fiscales, Bolivia 12(3–4), Santa Cruz de la Sierra Pascual R, Ortiz-Jaureguizar E (2007) The South American mammalian history: two major unrelated episodes. J Mamm Evol 14:75–137 Pascual R, Ortega Hinojosa EJ, Gondar D, Tonni EP (1965) Las edades del Cenozoico mamalífero de la Argentina, con especial atención a aquellas del territorio bonaerense. An Com Invest Cient Prov Buenos Aires 6:165–193 Pascual R, Ortega Hinojosa EJ, Gondar D, Tonni EP (1966) Las edades del Cenozoico mamalífero de la provincia de Buenos Aires.

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