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Re: T rex & smell
For example, the size of tyrant olfactory lobes might simply be
allometric: it could well be that ALL large theropods wind up with
those suckers. Until more giant theropods are scanned (Acro,
Carcharodonto, etc.) and published, it will be difficult to say.
In addition... I don't know if there could be some filling tissue or even
air between the olfactory lobes and the bony walls around them... some
cushioning or cooling could have been a good idea...