protocontinent

plural protocontinents · alternative proto-continent

1. A landmass capable of becoming a continent.

   1 more example

   There were still plenty of islands about, including proto-Britain in the west and Iberia in the south, but stretching from the Turgai Strait in the east to Scandinavia in the north, a European proto-continent was beginning to take shape, one that no amount of rising seas or shifting tectonic plates has divided since.

   2018, Tim Flannery, Europe: A Natural History, page 55