A ‘supercontinent’: a continuous land surface formed of the now separate units of Africa, Madagascar, Antarctica, Australia, and India. Gondwanaland started in the earliest Paleozoic at the break-up of a Late Proterozoic supercontinent (Veevers (1988) Geology 16, 8), and assembled by 650–570 Ma. See Veevers (2003) Geology 31, 6.