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Norian Stage
Introduction References & Edit History Related Topics
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Chart showing the Triassic period within the Mesozoic era, listing its division into Lower, Middle, and Upper epochs, with corresponding ages such as Induan, Olenekian, Anisian, Ladinian, Carnian, Norian, and Rhaetian, and marking boundaries 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.

Norian 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 added that updates the interval's boundary years. May 06, 2013
Added Triassic Period geologic time scale. Jul 07, 2011
Added new Web site: Palaeos - The Norian Age. Jan 14, 2008
Article revised and updated. Jan 19, 2007
Article added to new online database. Sep 13, 2002
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