Zealandia once made up ~5% of the area of Gondwana. The study authors write: "The importance of Zealandia is not so much that there is now a case for a formerly little-known continent, but that, by virtue of its being thinned and submerged, but not shredded into microcontinents, it is a new and useful continental end member. Zealandia started to separate from Gondwana in the Late Cretaceous as an ~4000-km-long ribbon continent "
Zealand though 94% submerged remains unbroken. It is the 7th largest continent as is the "size of approximately the area of greater India."