Re: phylogenetic position of Herrerasauridae

[AM Yates <Adam.Yates@bristol.ac.uk>]

On Thu, 3 Jan 2002, Thomas R. Holtz, Jr. wrote:

> Greetings,
> 
> In answer to some questions about the position of herrerasaurids: the most
> recent extensive work on the subject is by Yates and colleagues (at, for
> example, SVP 2001).  They found that herrerasaurids are within Dinosauria,
> are saurischians, and are possibly outside Eusaurischia (sauropodomorphs +
> theropods), although they could be basal theropods.  An interesting result
> of that work was the tendancy for _Eoraptor_ to fall closer to classic
> theropods than did herrerasaurids.


While i must thank Tom for acknowledging my part in this work, I feel i
must give credit where it is due. Max Langer has done far more of this
work than i have (my research is focussed on the basal relationships
within sauropodomorpha). You will be able to read about it in his
chapter in the up-coming edition of the Dinosauria.

cheers

Adam Yates