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Which stages make up the Ludlow Series?
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Silurian Period
Distribution of landmasses, mountainous regions, shallow seas, and deep ocean basins during the middle part of the Silurian Period. Included in the paleogeographic reconstruction are the locations of the interval's subduction zones.
The Ludlow Series, which represents the third of four major divisions of the Silurian Period, is divided into two worldwide stages:12
- Gorstian Stage: Spanning approximately 427.4 to 425.6 million years ago, this stage begins at the base of the Lower Elton Formation.123
- Ludfordian Stage: Spanning approximately 425.6 to 423 million years ago, this stage follows the Gorstian and concludes the Ludlow Series.12