Re: Coelurosauria

[Jamie Stearns <stearns5@cox.net>]

> > Given that just about everything once referred to Bahariasaurus has been 
> > reassigned to Deltadromeus and upon further examination of what's left, 
> > only 1 character serves to separate the two,
>
> Which character is that?
Something along the lines of "narrower ilial peduncle of the ischium in 
Bahariasaurus than in Deltadromeus." Anyhow, it was mentioned that the 
holotype of Tyrannosaurus differed from AMNH 5027 in this respect as well, 
and nobody seems to consider them as different genera to my knowledge.

Anyhow, I'm actually not as up on all the different anatomical terms as I 
should be, (Illium and ischium I know, but the exact reference here kind of 
escapes me) so it's kind of hard to comment. Nevertheless, I still 
personally wouldn't separate taxa based on a single character that is known 
to vary within individuals, but I acknowledge my limitations compared to 
others on this list.

-Jamie Stearns