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Re: Dinosauricon Phylogeny: complete
----- Original Message -----
From: "T. Michael Keesey" <firstname.lastname@example.org>
> > # *Dromaeosauridae* _sensu stricto_
> > # *Velociraptor*
> > # *Dromaeosaurinae*
> > #?
> > # *Deinonychus*
> > # *Saurornitholestes*
> > #
> This is an interesting grouping.
Not my idea. :-)
> > You separate *Archaeopteryx* and *Wellnhoferia*... but why not
> > and *Jurapteryx*?
> The type species of those genera are regarded as synonyms of _A.
> I should probably look into this more, though. If only I had
> Chiappe's volume here with me now -- is _siemensii_ distinguished from
> _lithographica_ in it? If so, I might indeed recognize _Archaeornis_.
Elzanowski keeps *A. siemensii* separate. Page 132...
"_Diagnosis_ -- Smaller than *A. lithographica*, close in size to
*Archaeopteryx bavarica*. Preacetabular ilium without the iliofemoralis
internus fossa and ventral process. Pedal claws without flexor tubercles.
Tooth crowns consistently rounded in cross section. The humerus/ulna ratio
above 110 % and the femur/tibia ratio around 70 % or more."
> My plan was to place apomorphy-based names only at (or, to be precise,
> above) the nodes which they are *known* for.
> > * In my matrix *C.* differs from *Neuquenornis* only in the position of
> > question marks.
> Uh, which _C._?
Oops, *Cuspirostrisornis*. I added the preceding 2 sentences after I wrote
> > *Lectavis* may not even be enantiornithine.
> Heh -- sometimes it seems everything but _Enantiornis_ may not be
In an earlier run of my analysis I got *Sinornis* closer to Neornithes than
(to) *Enantiornis*. No longer. :-) Although I get the lowest-ever number of
synapomorphies for Enantiornithes, namely 3.
> > *Nanantius* is Ornithothoraces incertae sedis -- it could be a derived
> > enantiornithine, or related to *Apsaravis*, or who knows.
> So many opinions --
It's difficult to have an opinion about *N.*... I could have coded it for
_one_ character in my analysis...
> someone needs to do an expansive, published analysis of all
> non-ornithuran pygostylians.
:-) Obviously. But we need such an expansive coelurosaur analysis first, so
that we get the outgroup situation right.
> > Is *O[rnithurae]* _sensu medio_ defined?
> _sensu medio_ is Gauthier & de Queiroz 2001 -- I was under the impression
> it was roughly equivalent to _Avebrevicauda_.
That's what one should think. But instead, they take the neornithean aspect
of the pygostyle (short and bent upwards).
> > *Palintropus* could be a pangalliform,
Yay! I've fallen into the basic trap of phylogenetic nomenclature -- it
could be a _non-galliform_ pangalliform. :-]
> > What is *Omorhamphus*? I only know *Diatryma*...
> I'm curious, myself:
> > Where does your phylogeny of *Neoaves* come from?
> Primarily Livezey & Zusi 2001. Instead of trying to forge a compromise
> all the different stuff out there, I decided to go with the most recent
> broad study.
OK, but it's 1/10 of a study, they're still collecting characters...