Re: Def. of Ornithischia

[Jeff Poling <jpoling@dinosauria.com>]

>   In other words, why wouldn't a node based Predentata of the most recent 
>common ancestor of, say, Pisanosaurus and Triceratops take precedence since 
>node based taxa seem to be the underlying principle of cladistics?

   Oops, that would be the unnamed node Dr. Holtz spoke of.  I meant of
course whatever animal plus Triceratops would make up a node based
definition of Ornithischia.

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