Re: Birds and archosaurs

[Stan Friesen <swf@ElSegundoCA.NCR.COM>]

>From: Tom Holtz <tholtz@geochange.er.usgs.gov>
 > 
 > Actually, Chatterjee supports the idea that birds arose within maniraptoran
 > coelurosaurs ...
 >  He believes, however, that the origin of birds
 > lies in the early part of the Late Triassic, rather than sometime in the
 > Jurassic as is more commonly held.
 > 
Oops, that's right - I forgot that he doesn't let the known temporal
range of fossil groups influence his phylogenetic ideas. So what
if Protoavis predates all known maniraptorans by 60 million years :-;

Why am I reminded of the time he proposed that tyrannosaurids
had a seperate origin from thecodontian archosaurs from the
rest of the dinosaurs.

swf@elsegundoca.ncr.com         sarima@netcom.com

The peace of God be with you.