Email Print Share
August 18, 2014

Mark Clementz holds a skull of an early Eocene sirenian.

Mark Clementz holds a skull of an early Eocene sirenian from the National Museum of Natural History in Paris.

Credit: Mark Clementz, Deptartment of Geology and Geophysics, University of Wyoming


Images credited to the National Science Foundation, a federal agency, are in the public domain. The images were created by employees of the United States Government as part of their official duties or prepared by contractors as "works for hire" for NSF. You may freely use NSF-credited images and, at your discretion, credit NSF with a "Courtesy: National Science Foundation" notation.

Additional information about general usage can be found in Conditions.

Also Available:
Download the high-resolution JPG version of the image. (2.3 MB)

Use your mouse to right-click (Mac users may need to Ctrl-click) the link above and choose the option that will save the file or target to your computer.

Related story: Understanding how ancestors of today's mammals responded to climate change