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biggreenplant
June 14, 2014 3:48 AM
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Uniformitarianism Now! June 13, 2014 12:03 PM
Fig June 13, 2014 11:09 AM
CathyG June 13, 2014 4:17 PM
aimedwander June 13, 2014 12:41 PM
Uniformitarianism Now! June 13, 2014 12:03 PM
Fig June 13, 2014 11:09 AM