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The n E South America us Central America and Africa during the Tertiary Period left a strong imprint on the flora tropics.Sout rican Eocene t rough Miocene fossil assemblages, both pollen and macrofossils, document a ric ich panis 'al flora on the continental margins, and represent some of the only data on pre-landbridge lowland taxa in South America.Lowland Miocene floras from Amazonia are remarkably similar in their high diversity to Amazonian = today based on lists of dominant families.Recent geophysical data on the uplift of the northern Andes show a rong c 'orrelation between uplift and the development and a 'ation of montane forests in Colombia eme ; en Central and South America is well
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Burnham et al. (1999) studied this question.
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