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Oxygen Levels

To: dinosaur@usc.edu
Subject: Oxygen Levels
From: George Blasing <dinoworld@msn.com>
Date: Wed, 18 Jul 2007 21:38:04 +0000
Reply-to: dinoworld@msn.com
Sender: owner-DINOSAUR@usc.edu

I am sure I read somewhere that there was a higher percentage of oxygen during the Jurassic and Cretaceous than there is today? Is that correct, and does anyone know what those levels are in comparison to today?

Thanks.

George

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