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Re: Oxygen level in Mesozoic - LONG
Isn't 35% about the fraction at which spontaneous combustion of the
biosphere would be expected?
Allan Edels wrote:
> " Hengst and others (1993, 1996) demonstrated that a large long
> necked sauropod such as the Tithonian _Apatosaurus_ required an oxygen
> in the atmosphere of about 35% to function at any level above a very slow
> walk, slower than the rates deducted from trackways.