"Daniel Sch?tz"  wrote in
message news:cd96he$1ipo$1{at}darwin.ediacara.org...
> > The root is the node with the earliest timestamp.
>
> But what is with the internodes, the HTUs? I think they are mostly the
> root of a cladogram. Generally you can say that the root are the
> oldest known OTUs or any HTU. It´s impossible to date the internodes
> absolute.
>

Are you saying that you want to root the tree AT one of the nodes,
rather than rooting it on a branch between two nodes?  That is,
you want to root the tree without postulating a new HTU node as
the root?
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