Pangaea breaks apart
175 million years agoNotable
The supercontinent splits as the Atlantic Ocean opens. The separating continents isolated animal and plant lineages and set up the modern map of the world.
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Longest chain: The Big Bang → First stars ignite → Supernovae seed heavy elements → The Sun forms → Earth forms → First oceans → First life → Photosynthesis evolves → Great Oxidation Event → Complex cells (eukaryotes) → Multicellular life → First animals → Cambrian Explosion → First vertebrates → Jawed fish → Fish walk onto land → The amniotic egg → The Great Dying → Dinosaurs appear → End-Triassic extinction → Pangaea breaks apart
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