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Homerian Stage
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Silurian Period
Silurian Period

Homerian Stage

geology and 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:
Wenlock Series
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Homerian Stage, second of two stages of the Wenlock Series, encompassing all rocks deposited during the Homerian Age (430.5 million to 427.4 million years ago) of the Silurian Period. The name of this interval is derived from the town of Homer, Shropshire, England.

The International Commission on Stratigraphy established the Global Stratotype Section and Point (GSSP) defining the base of the Homerian Stage in 1980. The GSSP is located in Whitwell Coppice near Homer, on the northern bank of a small stream that flows into a tributary of Sheinton Brook. It has been set into the mudstone of the Coalbrookdale Formation where the graptolite Cyrtograptus lundgreni first appears. The Homerian Stage precedes the Gorstian Stage of the Ludlow Series and follows the Sheinwoodian Stage.

John P. Rafferty