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Created page with "== Introduction == The **Silurian Period** is a geologic time period that spans from approximately 443.8 million to 419.2 million years ago. It follows the Ordovician Period and precedes the Devonian Period. The Silurian is significant for its profound changes in the Earth's climate, sea levels, and the development of early life forms, particularly in marine environments. This period is named after the Silures, an ancient Celtic tribe in Wales, where rocks from this per..."