Re: Fossil Record 2 database

[gator@xxxxxxxxxxxxxxx (christopher brochu)]

>
>This one confuses me.  In a classification, two families would represent two
>mutually exclusive groups of genera.  But in a phylogenetic analysis, one
>"family" of canonical systematics may turn out to be a subset of another
>"family."  Is it all right for both "families" to carry equal weight in an
>analysis like Benton's?



It gets worse - "class" Aves is nested within "order" Saurischia.

chris



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Christopher A. Brochu
Department of Geological Sciences
University of Texas at Austin
Austin, TX 78712

(512)471-6088

gator@mail.utexas.edu