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Graphical Representation of Geologic Time (title provided or enhanced by cataloger)
This page has an illustration of the 4.5 billion year old Earth's time scale shown as a spiral with pictorial representations of both marine and terrestrial life. The text discusses how the age of the Earth is determined. The illustration is from the USGS General Interest Publication, Geologic Time by William L. Newman.
Intended for grade levels:
  • General public
Type of resource:
  • Visual:
    • Visualization - scientific
  • Text:
    • Ref. material
  • Geological Sciences:
    • Geologic time
Technical requirements:
No specific technical requirements, just a browser required
Cost / Copyright:
No cost
Information presented on this website is considered public information and may be distributed or copied. Use of appropriate byline/photo/image credit is requested.
DLESE Catalog ID: DLESE-000-000-000-862
Resource contact / Creator / Publisher:
Publisher: United States Geological Survey

Contact: Kathie Watson
United States Geological Survey