Morrison Formation: References & Edit History
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Carol Marie Tang
Senior Science Educator, California Academy of Sciences, San Francisco.
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Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Invalidated site: United States Geological Survey - Morrison Formation. | Jan 23, 2020 | ||
| Add new Web site: United States Geological Survey - Morrison Formation. | May 25, 2012 | ||
| Add new Web site: The University of Utah - Department of Geology and Geophysics - Morrison Formation. | May 25, 2012 | ||
| Media added. | Jun 30, 2009 | ||
| New article added. | Jan 19, 2007 |
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