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RE: Polyphyletic

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Posted by: apeltes at Mon Sep 29 01:18:40 2008  [ Report Abuse ] [ Email Message ] [ Show All Posts by apeltes ]  
   

I thought a paraphyletic group was a group of species that share a common ancestor, but with some of the descendents of that common ancestor excluded. Woudn't that be the case for a group consisting of birds and frogs?

   

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