Thursday, April 21, 2011

Fossil Sirenians Give Scientists New Look at Ancient Climate

Fossil Sirenians Give Scientists New Look at Ancient Climate
Thu, 21 Apr 2011 13:34:00 -0500

Photo of geologist Mark Clementz sampling tooth enamel from molars in a Florida manatee.

What tales they tell of their former lives, these old bones of sirenians, relatives of today's dugongs and manatees.

And now, geologists have found, they tell of the waters in which they swam.

While researching the evolutionary ecology of ancient sirenians--commonly known as sea cows--scientist Mark Clementz and colleagues unexpectedly stumbled across data that could change the view of climate during the Eocene Epoch, some 50 million years ago.

Clementz, from the ...

More at http://www.nsf.gov/news/news_summ.jsp?cntn_id=119336&WT.mc_id=USNSF_51&WT.mc_ev=click


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