Re: Nemegtian Tyrannosaurs

[David Marjanovic <david.marjanovic@gmx.at>]

> This all seems like explanations piled on explanations and speculation 
> piled on speculation. Maybe this, maybe that. 
 
Well, there certainly were no droughts in the Hell Creek environment, at 
least not significantly often. 
 
> The most parsimonious explanation would be that T 
> bataar is a different species from T efremovi 
 
What about things like neurocentral suture fusion? Is *T. efremovi* adult 
by such criteria? 
 
> Whether this is the correct explanation we cannot verify from 
> the information we presently have available. 
 
Well, "verify"... what do you expect from science. 

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