Panacea

From Thikipedia

Panacea (derived from Παγγαία, Greek meaning 'all earth') is the name given to the supercontinent that is believed to have existed during the Paleozoic and Mesozoic eras about 250 million years ago, before the process of plate tectonics separated each of the component continents into their current configuration.

Panacea is commonly mixed up with pangaea.