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Re: Great Size and Oxygen Content of Atmosphere
On Thu, 25 Jan 1996, Gary Bull wrote:
> There was a theory that the oxygen content of the earth's atmosphere was
> greater when very large dinosaurs roamed the earth, enabling them to grow
> large. Can't remember anything else about the theory or whether it was
> disproved (or unprovable).
During a Historical Geology class the professor stated during the
Cretaceous, cocoliths (calcium carbonate critters) were so numerous that
the oxygen to carbon dioxide ratios became inbalanced, producing a higher
than normal oxygen levels.
Check out an introductory Historical Geology textbook and take a look...
---John Schneiderman (email@example.com)