RE: Bitten Ornithopod on This Side Of Hell?

["Nick Gardner" <ratites637@hotmail.com>]

Tim Donovan wrote-
>   Not only are they present in the Lance they are relatively more abundant 
> there than in the Hell Creek.

Yes, this is something I was not aware.  I had thought that Edmontosaurus 
was limited to one locale in Canada and that Anatotitan was only from Hell 
Creek.  Perhaps I should have referred to Chapman & Brett-Surman 1990, which 
states that Anatotitan is from the Hell Creek Formation and the holotype 
came from Moreau River in South Dakota.  I was under the impression that the 
Hell Creek Formation was on the other side of Montana.  I apologize to the 
list for this blunder and thank HP Varner, HP Ford, and HP Donovan for 
correcting this mistake.


>   I assumed a hadrosaur because you mentioned evidence of tyrannosaurid 
> attack, and Thescelosaurus was too small to be preferred prey of a 
> tyrannosaur, and maybe too fast. Moreover if an attack occurred it is hard 
> to imagine a tyrannosaur failing to kill a thescelosaur.

But I didn't specify that it was Thescelosaurus either.  I don't know what 
species it is or even what type of ornithopod it is.  The specimen in 
question is not yet published and probably should not be discussed further.  
I see no reason why a tyrannosaurid could fail to kill a thescelosaur.  Prey 
items do escape their predators at times, even if they are injured.

Nick Gardner
Paleoartist
AIM Eoraptor22


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