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Figure 3. Successive pre-Aptian reconstructions of Gondwana and North America, using the Equatorial Atlantic fit of figure 2. This analysis provides a quantitative framework in which to build more locally detailed models of the evolution of the Gulf of Mexico and surrounding areas. Note pre-Andean/pre-rift restoration of the northern Andes on the Triassic position of South America: This defines how much of Mexico is definitely allochthonous versus how much is potentially -- but not necessarily -- autochthonous. Graphics courtesy of Pindell, Kennan and Barrett
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Figure 3. Successive pre-Aptian reconstructions of Gondwana and North America, using the Equatorial Atlantic fit of figure 2. This analysis provides a quantitative framework in which to build more locally detailed models of the evolution of the Gulf of Mexico and surrounding areas. Note pre-Andean/pre-rift restoration of the northern Andes on the Triassic position of South America: This defines how much of Mexico is definitely allochthonous versus how much is potentially -- but not necessarily -- autochthonous. Graphics courtesy of Pindell, Kennan and Barrett