By Francisco Goin,Michael Woodburne,Ana Natalia Zimicz,Gabriel M. Martin,Laura Chornogubsky
This ebook summarizes significant elements of the evolution of South American metatherians, together with their epistemologic, phylogenetic, biogeographic, faunal, tectonic, paleoclimatic, and metabolic contexts. a quick evaluation of the evolution of every significant South American lineage ("Ameridelphia", Sparassodonta, Didelphimorphia, Paucituberculata, Microbiotheria, and Polydolopimorphia) is provided. It is argued that as a result of physiological constraints, metatherian evolution heavily the stipulations imposed via worldwide temperatures. generally phrases, through the Paleocene and the early Eocene a number of radiations of metatherian lineages happened, with many adaptive kinds exploiting insectivorous, frugivorous, and omnivorous adaptive zones. In flip, a mix of generalized and really good forms, the latter frequently 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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