![](http://www.alamy.com/thumbs/6/1B01B4B3-04AB-4E7D-ABAA-FBCEF1019E7A/2ACP1E1.jpg)
Pezosiren skeleton. Pezosiren portelli is an early sirenian (sea-cow) type mammal that is believed to have lived about 50 million years ago in what is
Pezosiren skeleton. Pezosiren portelli is an early sirenian (sea-cow) type mammal that is believed to have lived about 50 million years ago in what is now the Caribbean. It is thought that it may have had a hippopotamus-like amphibious lifestyle, and is a perfect example of a transitional form between a land mammal and a sea mammal. Photographed at the In the Shadow of the Dinosaurs exhibition at the National Museum of Natural History, Paris, France, in 2011.
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Photo credit: © MATTEIS/LOOK AT SCIENCES/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
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