Paleozoic Era: Facts & Information - 1 views
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The Paleozoic began with the Cambrian Period, 53 million years best known for ushering in an explosion of life on Earth
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After the Ordovician Period came the Silurian Period (443 million years ago to 416 million years ago), which saw the spread of jawless fish throughout the seas.
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In the Paleozoic Era, life flourished in the seas.
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This is useful for learning about the life during the Paleozoic Era.
