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Re: Youngest dino remains



T. Mike Keesey wrote:
> 
> On Fri, 19 Mar 1999 Dinogeorge@aol.com wrote:
> 
> > No, you miss the point. When I say dinosaurs are birds, I am using the stem
> > group definition of birds as "all archosaurs closer to extant birds than to
> > extant crocodiles." This definitin includes the dinosaurs (and in some
> > phylogenies the pterosaurs, too) You can't define bats so as to include all
> > mammals this way, since there are many groups of mammals that have more
> > distant common ancestors with bats than the bats have themselves.
> 
> (As I've said to George before...) Then _Dimetrodon_ is a mammal,
> parasuchians are crocodylians, pareiasaurs are chelonians, etc., etc.
> 

No, no no, chelonians are crocodylians, :->

Tracy