a great landmass thought to have existed in the geological past and to have split into smaller landmasses, which drifted and formed the present continents
supercontinent in American English
(ˈsupərˌkɑntənənt)
noun
a massive formation of land, as Pangea, that existed for some period of time in geologic history
Examples of 'supercontinent' in a sentence
supercontinent
This uneven distribution appears to be linked to the break-up of the ancient supercontinent of Gondwanaland.
Tony Juniper SPIX'S MACAW: THE RACE TO SAVE THE WORLD'S RAREST BIRD (2002)