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General Information Product 141

Divisions of Geologic Time (Bookmark)

By U.S. Geological Survey

Thumbnail of and link to report PDF (10.4 MB)Description

This bookmark, designed for use with U.S. Geological Survey activities at the second USA Science and Engineering Festival (April 26–29, 2012), is adapted from the more detailed Fact Sheet 2010–3059 "Divisions of Geologic Time." The information that it presents is widely sought by educators and students.

For additional information, contact:
Director, U.S. Geological Survey
12201 Sunrise Valley Drive
Reston, VA 20192

Part or all of this report is presented in Portable Document Format (PDF). For best results viewing and printing PDF documents, it is recommended that you download the documents to your computer and open them with Adobe Reader. PDF documents opened from your browser may not display or print as intended. Download the latest version of Adobe Reader, free of charge. More information about viewing, downloading, and printing report files can be found here.

Suggested citation:

U.S. Geological Survey, 2016, Divisions of geologic time (reprinted October 2016): U.S. Geological Survey General Information Product 141, a bookmark,

ISSN 2332–3531 (print)

ISSN 2332–354X (online)

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