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Re: Neogondwana and Epitheria
In a message dated Wed, 23 Jan 2002 10:10:56 AM Eastern Standard Time, "Ken
Kinman" <firstname.lastname@example.org> writes:
> Extrapolating the mammal results to birds is a tricky business, beyond
> the general "southern refuge" at K-T. Even for mammals, I am not completely
> convinced that Afrotheria is necessarily the most basal group.
It seems to me I have seen other studies that reversed the branching order of
the two basal clades (Xenarthra first, then Afrotheria).
> Xenarthrans of Neogondwana have been classified separately from all other
> living mammals (epitheres) for quite some time,
Though I've also heard that modern xenarthrans may be secondarily
and it still seems possible
> to me that xenarthrans paraphyletically gave rise to both afrotherians and
> boreoeutherians, either separately (more likely?) or as a single epitherian
Huh??? What in the world sort of evidence do you have that afrotheres *or*
"boreoeutherians" (let alone both) derive from _within_ Xenarthra??