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Re: Taxon Search



Jaime Headden wrote-

<However, I have issues with which clades are presented as "active". It's
basically the clades Sereno uses. So Tyrannoraptora is active, despite having
an uncertain content (does it include compsognathids? Ornitholestes?
arctometatarsalians?)>


This may not be of any relevance on the issue of active versus non-active.

Except that he uses uncertain content as a reason to make some clades inactive, like Galton and Upchurch's (2004) Anchisauria. So it's a double-standard.


  Sereno, P. C. 2005. The logical basis of phylogenetic taxonomy.
   _Systematic Biology_ 54:595-619.

I have it. I haven't read it yet, but I doubt I'll agree with some parts (like not using eponymous specifiers, which Sereno still refuses to do a lot).


Mickey Mortimer