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Re: Phylogenetic bracket - was: Re: Land of the Lost review-spoiler?



If you flip the branches of the top clade in your phylogenetic tree there, the bracketing can be made more clear:

 +lepidos
 |
 |-+-dinos
   |
   |-crocs

Cheers,
John

Martin Baeker wrote:
On Fri, 5 Jun 2009, Andreas Johansson wrote:

Lepidosaurs and crocodiles _do_ bracket dinosaurs; the phylogeny is
(lepidosaurs(crocs, dinos)).


HELP! It seems I completely misunderstood what an EPB is - I always thought you need at least one descendant (like birds for dinos) to bracket something.

Here we have

+lepidos
|
|-+-crocs
  |
  |-dinos

How does this *bracket* dinos?

Would be grateful for some explanation..
Martin.



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