George Gaylord Simpson: References & Edit History
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Additional Reading
George Gaylord Simpson, Concession to the Improbable; an Unconventional Autobiography (1978), a candid self-portrait that abounds with lively descriptions of his field expeditions.
Article Contributors
Primary Contributors
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Alfred S. Romer
Alexander Agassiz Professor of Zoology, Harvard University, 1947–65.
Other Encyclopedia Britannica Contributors
Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Anniversary information added. | Oct 02, 2025 | ||
| Anniversary information added. | Jun 12, 2025 | ||
| First paragraph modernization. | Apr 08, 2024 | ||
| Invalidated site: American Philosophical Society Library - George Gaylord Simpson Papers. | Jul 30, 2019 | ||
| Add new Web site: National Academy of Sciences - Biographical Memoirs - George Gaylord Simpson. | Apr 09, 2019 | ||
| Add new Web site: Famous Scientists - Biography of George Gaylord Simpson. | Oct 08, 2015 | ||
| Add new Web site: American Philosophical Society Library - George Gaylord Simpson Papers. | Oct 08, 2015 | ||
| Add new Web site: National Academy of Sciences - Biographical Memoirs - George Gaylord Simpson. | Apr 09, 2015 | ||
| Geologic time data updated. | Sep 15, 2009 | ||
| In the opening statement, changed "U.S." to "American." | Jun 09, 2009 | ||
| Added new Web site: Minnesota State University - Biography of George Gaylord Simpson. | Nov 19, 2008 | ||
| Article added to new online database. | Jul 20, 1998 |
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