Re: Dinosauricon Phylogeny: in progress

[David Marjanovic <david.marjanovic@gmx.at>]

> But before that, in 2001 (Ostrom Symposium volume) he defined it as "the 
> common ancestor of Patagopteryx, Vorona and Ornithurae, and all 
> descendents from this ancestor." 
 
Ah yeah, figure caption on page 126: "Ornithuromorpha is the common [...] 
descendants [...]." Hm. 
 
> Hou (1997) merely says "metatarsal V has been lost" for 
> Jibeinia. 
 
I've coded it as absent in *J.* and many others that were found 
articulated in slabs, but I also made it irreversible. 
 
> "The convex coracoidal cotyla in the scapula and concave scapular cotyla 
> in the coracoid unite Ambiortus and Otogornis with the Ornithurae." 
 
Wonderful. 
 
BTW... remember when I promised some characters to unite Archie with 
*Rahonavis* + *Shenzhouraptor* to the exclusion of everything else? Last 
night I let the analysis run; I stopped it after 1195831 MPTs (length = 
183); a few entries in the matrix were missing, so I don't have terribly 
much confidence in the results, plus there were some stupid settings that 
e. g. made the trees rooted on *Alexornis* (incredible!!!); 47 taxa, 62 
characters (yay); the strict consensus is a green pasture; the 50 % 
majority-rule consensus, shown as rooted on the allzero outgroup again 
(which looks AFAIK identical to, say, *Compsognathus* or 
*Sinosauropteryx*), is as follows... 
 
+--allzero outgroup 
`--+--*Caudipteryx* (all species lumped) 
   `--+--*Archaeopteryx* (both species lumped) 
      `--+--basal Troodontidae (*Sinovenator* + *-ornithoides* lumped) 
         `--+--*Microraptor* (both species lumped) 
            `--+--Scansoriopterygidae (both species lumped) 
               `--+--+--*Rahonavis* 
                  |  `--*Shenzhouraptor* 
                  `--+--*Hulsanpes* 
                     `--+--*Yandangornis* 
                        `--+--*Sapeornis* 
                           `--+--*Confuciusornis sanctus* 
                              `--+--*Vorona* 
                                 `--+--*Patagopteryx* 
                                    `--+--Euornithes (see below) 
                                       `--Enantiornithes (see below) 
 
Euornithes 
|--*Yanornis* 
`--+--*Yixianornis* 
   `--+--+--*Apsaravis* 
      |  `--*Songlingornis* 
      `--+--+--*Lectavis* (I hate it) 
         |  `--*Liaoningornis* (grrr) 
         `--+--*Anas* (with a bit too many question marks) 
            `--+--*Ichthyornis* 
               `--+--*Gansus* 
                  `--+--*Hesperornis* (a few characters from *Baptornis*) 
                     `--*Ambiortus* 
 
Enantiornithes 
|--*Gobipteryx* (and that's NOT because of its missing teeth... ~:-| ) 
`--+--*Iberomesornis* 
   `--+--*Noguerornis* 
      `--+--*Boluochia* 
         `--+--+--*Protopteryx* 
            |  `--*Longipteryx* 
            `--+--*Jibeinia* 
               |--*Eocathayornis* 
               |--*Eoenantiornis* 
               |--*Alexornis* 
               `--+--*Otogornis* 
                  |--*Yungavolucris* 
                  `--+--*Sinornis* 
                     `--+--unnamed from Lebanon 
                        `--+--*Halimornis* 
                           `--+--*Concornis* 
                              `--+--+--*Avisaurus* 
                                 |  `--*Soroavisaurus* 
                                 `--+--*Enantiornis* 
                                    `--+--*Eoalulavis* 
                                       `--+--*Cuspirostrisornis* 
                                          `--*Neuquenornis* 
 
For your amusement. :-) 
Most clades are discovered surprisingly often. Weakest support is around 
both sides of the polytomy in Enantiornithes. Even the position of 
*Hulsanpes* is remarkably constant. I'll certainly run an analysis without 
the most fragmentary taxa, too, but much of the above looks like it's here 
to stay when I include all taxa. 
 
Does someone know what an *Ichthyornis* pelvis looks like in dorsal view? 
Are the ilia sigmoid, like in Neornithes and *Avimimus*, or rather 
straight and far apart, like in dromies, Archie and, as I saw yesterday, 
*Longipteryx*? 

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