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出典:『Wikipedia』 (2010/12/31 13:55 UTC 版)

英語による解説

引用

Pezosiren portelli is the name given to an early sirenian represented by a Jamaican fossil skeleton, described in 2001 by Daryl Domning, a marine mammal paleontologist at Howard University in Washington, DC. It is believed to have lived 50 million years ago, perhaps with a hippopotamus-like amphibious lifestyle, and is a perfect example of a transitional form between a land mammal and a sea mammal.