Re: Basal Ornithischia and Stegosauria

[mike@miketaylor.org.uk (Mike Taylor)]

David Marjanovic writes:
 > The term "derived" should be restricted to character states. For
 > whole organisms it only makes sense, if at all, when it's applied
 > to the average of a large number of character states.

I didn't know that.  So what is the PC term for what used to be called
an "advanced tyrannosaur" and has more recently been called a "derived
tyrannosaur"?  Are still allowed to talk about "basal tyrannosaurs".

 _/|_    ___________________________________________________________________
/o ) \/  Mike Taylor  <mike@miketaylor.org.uk>  http://www.miketaylor.org.uk
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