LAYER · ANCIENT OCEANS−540 → −90 Ma
Ancient Oceans.
Warm shallow seas covered most continents. Cambrian reefs, Jurassic lagoons, Cretaceous chalk plains — the limestone bones of cities were built here.
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II · Earth Layers
Cinematic strata of a single planet.
The Earth holds many worlds inside one. Move between layers as you would move between maps — each transforms the atmosphere, the chemistry, the life.