With the development of plate tectonics in the 1960s, geologists such as Arthur Holmes and John Tuzo Wilson concluded that the Atlantic Ocean must have had a precursor before the time of Pangaea.
Co desenvolvemento da tectónica de placas na década de 1960, xeólogos como Arthur Holmes e John Tuzo Wilson chegaron á conclusión de que o océano Atlántico debeu ter un precursor anterior ao tempo da Panxea.