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Interactive Geological Time Scale
This time scale allows students to select multiple time periods from a list and view them on a highlighted display. It shows the relationship between eon, era, period, sub-period, and epoch and also includes the date in mega-annum (Ma) or millions of years before present. The scale reflects the changes in the Cenozoic Era (Tertiary and Quaternary have been eliminated and the Neogene modified) in the most recent International Stratigraphic Charts.
Intended for grade levels:
  • Intermediate (3-5)
  • Middle (6-8)
  • High (9-12)
Type of resource:
  • Visual:
    • Visualization - scientific
  • Tools:
    • Calculation / Conversion
Subject:
  • Geological Sciences:
    • Geologic time
Technical requirements:
No specific technical requirements, just a browser required
Cost / Copyright:
No cost
Copyright 2004 All rights reserved. American Geological Institute.
DLESE Catalog ID: DLESE-000-000-007-068
Educational standards:
  • National Science Education Standards (NSES):
    • K-4:
      • Unifying concepts and processes:
        • Systems, order, and organization
    • 5-8:
      • Unifying concepts and processes:
        • Systems, order, and organization
      • D - Earth and space science:
        • Earth's history
    • 9-12:
      • Unifying concepts and processes:
        • Systems, order, and organization
Resource contact / Creator / Publisher:
Publisher: American Geological Institute
Earth Science World
http://www.earthscienceworld.org/