Hell Creek Formation: References & Edit History
More Articles On This Topic
Article Contributors
Primary Contributors
-
The Editors of Encyclopaedia Britannica
Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree. They write new content and verify and edit content received from contributors.
Other Encyclopedia Britannica Contributors
Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Media added. | Nov 07, 2024 | ||
| Add new Web site: University of California Museum of Paleontology - Hell Creek Formation, Montana. | Feb 12, 2012 | ||
| Add new Web site: Virtual Fossil Museum - Hell Creek Formation. | Feb 12, 2012 | ||
| Geologic time data updated. | Sep 11, 2009 | ||
| Media added. | Jun 30, 2009 | ||
| Article revised and updated. | Jan 19, 2007 | ||
| Article added to new online database. | Jul 20, 1998 |
View Changes:
Article History
Revised:
By: