Euryapsids

["Ken Kinman" <kinman@hotmail.com>]

Thomas,
    Is there anything online or in print about Merck's ideas on 
Euryapsid-Archosauromorph relationships?  Are they sister groups, or are 
euryapsids nested within Archosauromorpha (i.e. closer to prolacertiforms 
than are the rhynchosaurs or trilophosaurs).
    I assume Euryapsida also includes the placodonts, and perhaps the 
thalattosaurs, but what about choristodera?
                    -----Cheers, Ken Kinman
P.S.  Do any of the euryapsids have thecodont teeth?
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