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Re: synapsids (was RE: pdf request)

Ar 6/13/2012 5:38 PM, scríobh Thomas R. Holtz, Jr.:
The idea of a synapsid-archosaur or synapsid-diapsid clade clade has a long 
history (Diaptosauria; early non-computerized cladistic
analyses, etc.) And you can certainly pick out a few characters to support it 
(thecodonty, for one). But it doesn't pop out in the
really comprehensive studies of Permo-Triassic critters.

I would appreciate pointers to any info you (or others) have on early, non-computerized cladistic analyses.