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re: The evolution of the lepidosaurian lower temporal bar



Bingo!

Nice to know others are confirming earlier results.

See:

The evolution of the lepidosaurian lower
temporal bar: new perspectives from the
Late Cretaceous of South China
Jin-You Mo1,2, Xing Xu3 and Susan E. Evans4,*

Until recently, it was considered axiomatic that the skull of lizards and 
snakes arose from that of a diapsid ancestor by loss of the lower temporal 
bar... A combination of new fossils and rigorous phylogeny has demonstrated 
unequivocally that the absence of the bar is the primitive
lepidosaurian condition,

David Peters
davidpeters@att.net