On 11/25/96 Gothgrrl@aol.com wrote: >They also discuss the possibility of elevated oxygen level during the Mesozoic, >allowing "supercharged" breaths. Is there anyway to infer oxygen levels during the Mesozoic from the fossil record? Happy Thanksgiving everyone, S.S. Lazarus [There was some work done on air trapped in amber, but not eveyone believes the results - Chris]