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GSA Geologic Time Scale
http://www.geosociety.org/science/timescale/timescl.htm
From DLESE Community Collection (DCC)
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This Geological Society of America (GSA) site contains a detailed geologic time scale as an educational resource. It may be downloaded to a larger size, and includes all Eras, Eons, Periods, Epochs and ages as well as magnetic polarity information.
Intended for grade levels:
  • High (9-12)
  • College (13-14)
Type of resource:
  • Text:
    • Ref. material
Subject:
  • Geological Sciences:
    • Geologic time
Technical requirements:
Adobe Acrobat reader
Cost / Copyright:
No cost
Copyright 2002 The Geological Society of America
DLESE Catalog ID: DLESE-000-000-003-455
Related resources:
This resource is referenced by 'The Geological Society of America: Resources for K-12 Earth Science Educators'
http://www.geosociety.org/educate/resources.htm
Resource contact / Creator / Publisher:
Publisher: The Geological Society of America