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The top documents tagged [geologic periods]
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Journey to the Center of the Earth
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The Mesozoic Era
133 views
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The Geology of the Paleozoic Era. The Paleozoic Era. Geologic periods in Paleozoic record 7% of Earth’s history Cambrian, Ordovician, Silurian, Devonian
251 views
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The Age of The Dinosaurs
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Fossil
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Fossil
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