A hypothetical ancient landmass or biogeographic region encompassing Africa and surrounding areas, used in evolutionary biology.
From 'Afro-' (relating to Africa) combined with 'gaea' (from Greek 'gaia' meaning earth or land). A scientific term from early 20th-century biogeography.
Scientists theorized about ancient supercontinents and landmasses to explain why similar animals appeared in different parts of Africa and beyond—this concept helped lead to our modern understanding of continental drift and plate tectonics.
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