Comparison of Fig. 1 and Fig. 2 of Boris Choubert’s paper (1935). a − Bathymetric map of the Atlantic Ocean (redrawn after Choubert, 1935). Light beige: from 0 to −1.000 m.; light blue: from −1.000 to −2.000 m.; medium-light blue: from −2.000 to −4.000 m.; medium-dark blue: from −4.000 to −6.000 m; dark blue: below −6.000 m; b − Fit of the continents on the basis of the bathymetric map (redrawn after Choubert, 1935).