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Figure 8. Pre-Aptian Equatorial Atlantic reconstruction in which the restored pre-rift limits of continental crust (i.e., methodology of Figure 7) are juxtaposed. Note resulting simple geometry for Aptian rifting. Inset: Bullard (1965) reconstruction of the two continents, which realigned the 2,000 m isobaths of today's passive margins (not shown), showing the pre-rift limits of continental crust for each, as well as the large region of continental underfit in the absence of the sedimentary sections.