Re: The Continuing Story of Gliders to Dinosaurs

[Stanley Friesen <sarima@ix.netcom.com>]

At 09:57 PM 9/28/99 -0400, Dinogeorge@aol.com wrote:
>In a message dated 9/28/99 6:26:11 PM EST, sarima@ix.netcom.com writes:
>
><< Or, an even more complex phylogeny, with several lineages branching out
> from the basal group, some of which become terrestrial at various times,
> others of which remain arboreal/scansorial and one of which evolves into 
>birds. >>
>
>Sounds suspiciously like BCF to me...

The main difference, as I see it, is that *flight* (even gliding flight) is
found in only a small subset of the lineages.  Indeed, I would suspect that
powered flight may be found only in the clade containing _Archaeopteryx_
and _Passer_.

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May the peace of God be with you.         sarima@ix.netcom.com