Lambeosaurid evolution

[Stang1996@aol.com]

I've been thinking about this for a bit and have a question.  Is it
possible that _Parasaurolophus_ and Lambeosaurus_ (Lam-o-sor-us) are
closer to eachother then they are to _Hypacrosaurus_ (including
_Corythosaurus_)?  I think this might be the case because both _P_ and
_L_'s crests are made up almost entirely of Premaxilary flange II,
with a small Nasal in the middle; while _H_'s crest Is made up almost
entirely of the Nasals.  I would find it odd that if _L_ was closer to
_H_ both _L_ and _P_ would have evolved such similar conditions in
what I would think wouldn't be of much functional importance.  Also,
_L_ and _P_ both have more complicated nasal chambers than _H_.  I'm
suggesting a cladogram like this:

B  J  H  L   P
 \   \   \   \  /
   \   \   \  /
     \   \  /
        \ /

Where B is _Bactrosaurus_, J is _Jaxartosaurus_, H is _Hypacrosaurus_,
L is _Lambeosaurus_, and P is _Parasaurolophus_.

Does this make sense to people?

Peter Buchholz
Stang1996@aol.com