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- Author:
-
Lyn Topinka,
U.S. Geological Survey
- Subject:
- Science and Technology
- Institution Name:
- SERC
- Collection:
-
DLESE Community Service Center (SERC)
- Grade Level:
- Post-secondary
- Abstract:
This resource presents a table of the Geologic Time Scale. The time scale begins with a brief description of the Precambrian Era, and proceeds through the Cambrian Period starting 544 million years ago and concluding with the Holocene Epoch of today. The time periods are explained and include the dates, scientific names, historical descriptions, and common names. The table is organized by Era, Period or System, and Epoch or Series.
- Course Type:
- Learning Module
- Languages:
- English
- Material Type:
- Readings
- Media Format:
- Text/HTML
- Conditions of Use:
-
Public Domain
USGS-authored or produced data and information are in the public domain. While the content of most USGS web pages is in the public domain, not all the information on our site is in the public domain. Some images/graphics are used by USGS with permission. For other uses, you may need to obtain permission from the copyright holder under the copyright law. You are welcome to make a link to any of the Web pages USGS has published on the Internet. There is no need to request permission. We will identify material we use from sources outside of USGS, and request others do the same when using information published by USGS.
No restrictions on your remixing, redistributing, or making derivative works.
Give credit to the author, as required.
Your remixing, redistributing, or making derivatives works comes with some
restrictions, including how it is shared.
Your redistributing comes with some restrictions. Do not remix or make
derivative works.
Copyrighted materials, available under Fair Use and the TEACH Act for US-based
educators, or other custom arrangements. Go to the resource provider to see
their individual restrictions.
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