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Trends Ecol Evol. 1998 Nov 1;13(11):449-54.

Recent advances in South American mammalian paleontology.

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Dept of Geology, The Field Museum, Roosevelt Rd at Lake Shore Drive, Chicago, IL 60605 USA.


Recently discovered deposits containing terrestrial mammal fossils, together with multidisciplinary studies of classical sequences, have yielded dramatic insights into the biotic and environmental history of South America. Notable advances include several new fossil primate taxa, an improved chronology of two major immigration events (caviomorph rodents and new world monkeys), documentation of the oldest mammalian faunas dominated by grazing taxa (which suggests that grasslands appeared at least 15 million years earlier than on other continents), evidence of early biogeographical provinciality within South America, and improved sampling of the best known Cenozoic tropical South American paleofauna.


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