Geologic History of South America and Introduction
During the Early Jurassic, approximately 190 million years ago, South America was part of the supercontinent of Pangea. Free exchange of fauna was occurring between what is now the modern continents. In the late Jurassic, about 152 million years ago, Pangea separated into Gondwanaland and Laurasia. This separated South America from North America and the fauna of the two continents began to develop independently of each other. Sometime duri...
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