Re: Tanystropheus & archosaur evolution

[Larry Dunn <majestic_cheese@yahoo.com>]

---"M.Alan Kazlev" <akazlev@kheper.auz.com> wrote:

> Tanystropheus, as you point out, is not a direct anscestor.  It
> represents a continuing line of prolacertiforms living alongside more
> "advanced" Archosaurs.  It is NOT the ancestor to the prosauropods,
> which would've evolved from a Eoraptor/Staurikosaur/Herrerasaur type
> proto-dinosaur.

My understanding is that Eoraptor and (even more so) Herrasaurus are
basal Theropoda rather than basal Dinosauria (although others say that
Eoraptor is not a dinosaur at all).  Haven't been looking at
Sturikosaurus, though.

==
Larry
"Atheism -- a non-prophet organization"

http://members.tripod.com/~megalania/index.html

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