placental mammal: References & Edit History
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Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Media added. | Apr 07, 2025 | ||
| Changed “placenta, which facilitates” to “placenta, a vascular organ that develops during gestation, which facilitates.” | Feb 19, 2021 | ||
| Added a photograph of a capybara (Hydrochoerus hydrochaeris). | Jun 27, 2018 | ||
| Noted that the first placental mammals evolved during the Jurassic Period. | Jun 27, 2018 | ||
| Add new Web site: San Diego State University - Biology Department - Eutheria (Placental Mammals). | Aug 17, 2016 | ||
| Add new Web site: The Natural History Collections of the University of Edinburg - The Placetal or True Mammal. | Aug 17, 2016 | ||
| Text updated noting the emergence of placental mammal in the Cenozoic Era. | Feb 08, 2013 | ||
| Text added that describes Juramaia sinensis, the first known placental mammal. | Nov 02, 2011 | ||
| Add new Web site: University of California Museum of Paleontology - Eutheria. | Aug 13, 2010 | ||
| Added new Web site: University of California, Berkeley: Museum of Paleontology - Eutheria, the Placental Mammals. | Jun 26, 2006 | ||
| Article revised. | Mar 10, 2005 | ||
| Article added to new online database. | Jul 20, 1998 |
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