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Re: Quo vadis, T. rex? [long]
In a message dated 96-02-09 13:16:31 EST, pharrinj@PLU.edu (Nicholas J.
>I understand that the ancestor of the daughter taxon is to be found
>somewhere in the parataxon, but so are a lot of other animals not
>directly ancestral to the daughter taxon. As I see it, it is better
>simply to look at the daughter taxon as part of the radiatin of
>forms in the parataxon, which then, as an added benefit, becomes
No, the common ancestor of the daughter taxon belongs with the daughter
taxon, not with the parent parataxon. I see no real benefit to monophyly,
which is merely a special form of paraphyly in which the number of subtracted
clades is zero.