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Re: Re: Transitional Fossils



> From: jdharris@lust.isem.smu.edu (Jerry D. Harris)
> >  To my
> > knowledge, no cladist has yet identified an autapomorphy-free organism,
>
>Actually, they have.  The type species of Lagosuchus is held to have
>no autapomorphies by at least some cladists.  That is the justification
>for removing Marasuchus from that genus, since it has autoapomorphies.
>
In fact, Jacques Gauthier gave a name, 'metataxon', for a taxon which has no
autapomorphies.

Thomas R. Holtz, Jr.
Vertebrate Paleontologist
Dept. of Geology
University of Maryland
College Park, MD  20742
Email:Thomas_R_HOLTZ@umail.umd.edu (th81)
Fax: 301-314-9661
Phone:301-405-4084