Re: Tyrant Notes

[Jeffrey Martz <martz@holly.ColoState.EDU>]

> The "strech-snout" daspletosaur is the specimen on display at Chicago's
> Field Museum of Natural History (under the inappropriate name
> "Albertosaurus").  It will be redescribed by Currie & Bakker.
> The Horseshoe Canyon daspletosaur is awaiting description, probably by Currie.
> The "non-Albertosaurus libratus" is Gorgosaurus libratus, the proper name
> for this animal.  The reasons for placing Gorgosaurus libratus in
> Albertosaurus are no longer accepted, so the old name has been restored.
> The "Tyrannosaurus/Daspletosaurus intermediate" is the Daspletosaurus seen
> in (among others) Horner's _Dinosaur Lives_ and the forthcoming Brett-Surman
> & Holtz book _James Gurney's World of Dinosaurs_.  It will be described by
> me, Phil Currie & Dave Varricchio in our copious free time...

     Where was "_Albertosaurus_" redescribed as _Gorgosaurus_?  
     Hopefully all these specimens will be described all about the same
time, and soon, so we can have a nice glut of tyrannosaur information.
Hopefully Molnar, Holtz, Currie, and Carpenter are getting ready to write
a nice huge monograph on tyrannosaurs after they are...
     Given that there is only a single segnosaur skull, isn't is a little
hasty to refer to features of that skull as segnosaur autopomorphies, or
even synapomorphies between segnosaurs and various coelurosaur groups?
Given the scatter of bullatosaur, oviraptid, and dromeosaur features in
segnosaurs, wouldn't it be better to wait for more skulls before using the
features of the _Erlickosaurus_ to suggest affinities with any particular
group?  Convergance is running rampant with segnosaurs anyway.

LN Jeff