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Re: Basal Ornithischia and Stegosauria
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 <email@example.com> http://www.miketaylor.org.uk
)_v__/\ "... elaborately sugar-coated crap that runs like a pig on
Quaaludes" -- Eric S. Raymond's summary of MS-Windows.