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Re: semilunate carpal



In a message dated 8/8/01 1:55:39 PM EST, twilliams_alpha@hotmail.com writes:

<< All that's missing in this intuitively attractive, well-thought-out, 
 explicit hypothesis is the fossil evidence to back it up. >>

This is true of >all< the hypotheses of bird origins. The cladograms used by 
the ground-up theory apparently ignore the fact that there are millions of 
years of evolution between all the known early theropods and their common 
ancestors with birds. Why would anyone think that the common ancestor of, 
say, Coelophysis and birds had to look more like Coelophysis than a 
primitive, archaeopteryx-like bird?