Before revision: Earth's largest landmasses are (starting with largest): Africa-Eurasia (main landmass of the region of the same name and its continential parts Africa, Europe and Asia; the center of Earth's land hemisphere, comprising more than half of Earth's landmass) America (main landmass of the region of the same name and its continential parts North and South America; comprising most of the landmass of the Western Hemisphere) Antarctica (main landmass of the region and continent of the same name) Mainland Australia (main landmass of the global region Oceania and the continent Australia
After revision: , its sub-region AustralasiaEarth's largest landmasses are (starting with largest): Africa-Eurasia (main landmass of the region of the same name and its continential parts Africa, Europe and Asia; the center of Earth's land hemisphere, comprising more than half of Earth's landmass) America (main landmass of the region of the same name and its continential parts North and South America; comprising most of the landmass of the Western Hemisphere) Antarctica (main landmass of the region and continent of the same name) Mainland Australia (main landmass of the global region Oceania and the continent Australia