By Francisco Goin,Michael Woodburne,Ana Natalia Zimicz,Gabriel M. Martin,Laura Chornogubsky
This publication summarizes significant facets of the evolution of South American metatherians, together with their epistemologic, phylogenetic, biogeographic, faunal, tectonic, paleoclimatic, and metabolic contexts. a short assessment of the evolution of every significant South American lineage ("Ameridelphia", Sparassodonta, Didelphimorphia, Paucituberculata, Microbiotheria, and Polydolopimorphia) is provided. It is argued that because of physiological constraints, metatherian evolution heavily the stipulations imposed via international temperatures. normally 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 varieties, the latter as a rule exploiting carnivorous and granivorous-folivorous adaptive zones, characterised the second one half the Cenozoic. In either classes, weather was once the serious driving force in their radiation and turnovers.
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