|GSA Geologic Time Scale|
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:
Type of resource:
Adobe Acrobat reader
Cost / Copyright:
Copyright 2002 The Geological Society of America
DLESE Catalog ID: DLESE-000-000-003-455
This resource is referenced by 'The Geological Society of America: Resources for K-12 Earth Science Educators'
Resource contact / Creator / Publisher: