Baltica
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Baltica is a paleocontinent that formed in the Paleoproterozoic and now constitutes northwestern Eurasia, or Europe north of the Trans-European Suture Zone and west of the Ural Mountains. The thick co
550 million years ago Baltica (green) was an isolated continent located near the South Pole.
Rodinia
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In the geological history of Earth, Rodinia was a Mesoproterozoic and Neoproterozoic supercontinent that assembled 1.26–0.90 billion years ago and broke up 750–633 million years ago. Valentine & Moore
Reconstruction of Rodinia at 900 million years ago, using modern images to illustrate where today's recognisable continents were at the time.