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Re: tyrannosaurid ancestry, raptors and other fun things...

 Early (possible) members of the tyrannosauroid lineage
> are not that well known -- _Stokesosaurus_ and _Siamotyrannus_ and
> _Iliosuchus_ and _Itemirus_. The placement of these animals as
> tyrannosauroids remains contentious, though.

Mike , 
What is the oldest , unambiguous tyrannosauroid found to date ? My
references are not clear on this issue . Thanks in advance . 
regards , 
Truett Garner