Re: Re: Abelisaur & Titanosaur migratory routes

["Nicholas J. Pharris" <pharrinj@PLU.edu>]

On Fri, 26 Jan 1996, th81 wrote:

> >> I'd say it was a parafamily, with Titanosauridae its descendants. Cladists
> >> might want to call the monophyletic group Andesauridae + Titanosauridae =
> >> Titanosauroidea.
> >
> >No, actually, cladists would ignore any "Andesauridae," as it is a 
> >parataxon, and more likely put all the "titanosauroids" in one large 
> >family Titanosauridae, with the "andesaurids" down at the base.
> 
> Nope.  The clade is Titanosauria, containing the monphyletic Titanosauridae
> and some basal forms.  If two or more of these are closer to Andesaurus than
> to Titanosaurus, then there is your Andesauridae.

And the difference between this and a large Titanosauridae would be....?

> Thomas R. Holtz, Jr.
> Vertebrate Paleontologist


Nick Pharris
Pacific Lutheran University
Tacoma, WA 98447
(206)535-8204
PharriNJ@PLU.edu

"If you can't convince them, confuse them." -- Harry S. Truman