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Darriwilian Stage
Introduction References & Edit History Related Topics
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A chart showing the Ordovician period within the Paleozoic era on the geologic time scale, listing its division into Lower, Middle, and Upper epochs, with corresponding stage names and their ages in millions of years ago. A detailed geologic time scale chart displaying Earth's history from the Hadean Eon over 4.5 billion years ago to the present, organized by eons, eras, periods, epochs, and ages with color-coded columns and corresponding dates in millions of years.

Darriwilian Stage: References & Edit History

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  • The Editors of Encyclopaedia Britannica
    Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.

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Article History

Type Description Contributor Date
New text updating the boundary years for the stage added. May 07, 2013
Modified title of Web site: Purdue University - Base of the Darriwilian Stage. Nov 30, 2012
Add new Web site: Purdue University - Base of the Darriwilian Stage. Nov 19, 2012
Period-level geologic time chart added. Dec 04, 2009
New article added. Mar 17, 2009
Article revised. May 29, 2002
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