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Wordian Stage
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Permian Period in geologic time
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Wordian Stage

stratigraphy
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Written by
John P. Rafferty
John P. Rafferty writes about Earth processes and the environment. He serves currently as the editor of Earth and life sciences, covering climatology, geology, zoology, and other topics that relate to...
John P. Rafferty
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Related Topics:
Guadalupian Series
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Wordian Stage, second of three stages of the Middle Permian (Guadalupian) Series, made up of all rocks deposited during the Wordian Age (268.8 million to 265.1 million years ago) of the Permian Period. The name of this interval is derived from the Wordian Formation located in the Glass Mountains of western Texas in North America. In 2001 the International Commission on Stratigraphy (ICS) established the Global Stratotype Section and Point (GSSP) defining the base of this interval in the Cherry Canyon Formation of the Guadalupe Mountains in Texas, U.S. The GSSP is located in a deposit of carbonate mudstone and ...(100 of 149 words)

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