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Dr. Bob's Geologic Time Page
This is a collection of mnemonic devices to aid in learning the various periods and epochs of the geologic time scale which the author has assembled from a variety of contributors. Contributor email addresses are included. There are also mnemonic devices for Moh's hardness scale and for stratigraphic sequences from the Canyonlands-San Juan River area and the Grand Canyon.
Intended for grade levels:
  • Middle (6-8)
  • High (9-12)
  • College (13-14)
Type of resource:
  • Text:
    • Ref. material
  • Geological Sciences:
    • Geologic time
    • Geology
Technical requirements:
No specific technical requirements, just a browser required
Cost / Copyright:
No cost
Copyright and Other Restrictions Information is Unknown.
DLESE Catalog ID: DLESE-000-000-002-312
Resource contact / Creator / Publisher:
Author: Dr Bob Jorstad
Eastern Illinois University, Department of Geology and Geography

Publisher: Eastern Illinois University
Department of Geology/Geography

Contact: Dr John Stimac
Department of Geology/Geography
Eastern Illinois University