an actual or hypothetical landmass that might later be enlarged into a major continent or broken up into smaller ones.
Origin of protocontinent
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
A landmass that existed at some point in the past. Protocontinents that are thought to have comprised some or all of the present-day continents in a single landmass are also known as supercontinents.
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