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RE: Polyphyletic

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Posted by: apeltes at Thu Oct 2 20:00:12 2008  [ Report Abuse ] [ Email Message ] [ Show All Posts by apeltes ]  
   

Got it. We need to have a symplesiomorphy in our paraphyletic group that is not present in the excluded taxa. Fine.

I hereby create the "Nonchelonia". This taxon includes all organisms that posess a sacrum not covered by a carapace of fused ribs.

   

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