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Re: Therizinosauroid apomorphies

In a message dated 4/4/00 5:57:08 PM EST, tmk@dinosauricon.com writes:

<< TMK, Segnosauria has not been phylogenetically defined, whereas
 Therizinosauria has. Thus, if using PT, Therizinosauria should be
 preserved. >>

PT is only the latest fad in taxon definition. There is no reason it should 
supersede priority in preservation of taxonomic names. Rather, PT should be 
used to redefine older names that have not yet had the benefit of this kind 
of definition.