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Re: muddying the waters??
Nick,
I'm muddying the waters?? If I say Class Mammalea, everyone knows
what
I am talking about.
Do they??? Indeed? What about those fossil therapsida which are VERY
similar to mamamls?? It is not crystal - clear at all for these ones.
'Classes' are useless, is it SO bad to regard Mammalia as a branch within
the Therapsida??
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