Re: Dino Birds (was Re: Dinosaur = extinct animal)

[Dinogeorge@aol.com]

In a message dated 7/19/99 10:13:03 AM EST, tkeese1@gl.umbc.edu writes:

<< But naming a traditional paraphyletic taxon can exclude other taxa (para-
 or monophyletic) from ever being recognized, whereas naming a phylogenetic
 taxon never precludes the possibility of naming other clades. No
 possibilities are ruled out.  >>

My own preference is to subdivide a taxon into a single paraphyletic 
ancestral subtaxon for the usually very similar basal forms plus a set of 
monophyletic subtaxa for the various kinds of descendant forms.