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Re: directly measuring body temp

In a message dated 97-07-12 04:16:38 EDT, bonn@qcvaxa.acc.qc.edu (Bonnie
Blackwell, x 3332) writes:

<< there actually is a way to directly measure body temp for extinct animals:
 you do 18O analysis for the bone mineral and determine what the
 temp was when the bone precipitated.  ok sounds great you say... >>

Simply measuring an average body temperature is not enough to establish
endothermy/ectothermy. You must also track daily changes in the animal's body
temperature over a period of time. And even a crystal-clear 18O analysis
would ultimately provide only a hypothesis of body temperature. It would
still have to be confirmed by direct body-temperature measurements.