Re: A Pile of Questions

["Nicholas J. Pharris" <pharrinj@PLU.edu>]

On Sun, 21 Jan 1996, Graeme Worth wrote:

Can't help with everything, but here goes:

> Maybe someone out there can help with one or more of these queries?
> 1) The only species of Daspletosaurus I have listed is D. torosus. Is this
> still valid, or is it now a junior synonym of Gorgosaurus libratus?

_D. torosus_ is valid, and the only species in the genus 
_Daspletosaurus_, although I have heard indications that this may change...

> 
> 2) What are the currently accepted valid species of Albertosaurus?

The only *definite* species of _Albertosaurus_ is _A. sarcophagus_.  This 
is poorly preserved, making it difficult to tell with certainty whether 
the other species belong here or not.

> 
> 3) Ditto for Parasaurolophus?

Definitely _P. walkeri_ and _P. tubicen_.  Anyone know whether _P. 
cyrtocristatus_ did indeed turn out to be a female _walkeri_?


> 5) Are Yangchuanosaurus shangyouensis and Y. magnus valid species or have
> they also been transferred to Sinraptor with Y. hepingensis?

_Y. shangyouensis_ is probably a subadult, possibly of the same species 
as _Y. magnus_.  If they are the same species, _shangyouensis_ has priority.

No, they are not _Sinraptor_, although they are closely related.

> 
> Thanks in advance for your answers.
> Graeme
> 

You're welcome. 

Nick Pharris
Pacific Lutheran University
Tacoma, WA 98447
(206)535-8204
PharriNJ@PLU.edu

The secret of the universe is @*&^^^ NO CARRIER