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Re: TYRANNOSAURIAN IMPLOSION [long; part 2 of 2]



In a message dated 1/25/01 7:36:38 PM Eastern Standard Time, 
Dinogeorge@aol.com writes:

> Siamotyrannus isanensis is based on a partial postcranial skeleton of a 
>  theropod estimated to be 6.5 meters long from the Early Cretaceous Sao 
Khua 
>  Formation of Khon Kaen Province, Thailand. The pelvic bones suggest 
>  tyrannosaurid affinities, as the authors noted, and I have no problem 
>  accepting this species as a basal tyrannosaurid or, more appropriately, as 
>  basal to Tyrannosauridae but not necessarily referable to the family.

I feel it necessary to reiterate my strenuous disagreement with this 
assessment of _S. isanensis_.  Please see:

http://www.cmnh.org/fun/dinosaur-archive/1997Jun/msg00271.html

--Nick P.