Bird analysis update 2: reweighting

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

Reweighted 10 times with baseweight = 1000. (This means that the characters 
with low rescaled consistency indices get downweighted.) Tree length 
"increases" from 210 to 68043, and the number of MPT drops to 2276. I'll 
spare you the Adams consensus because it's so similar to the majrule 
consensus. The strict consensus is remarkably well resolved:

+--allzero outgroup
`--+--+--*Caudipteryx*
  |  `--+--Scansoriopterygidae
  |     `--+--*Archaeopteryx*
  |        |--*Rahonavis*
  |        |--*Shenzhouraptor*
  |        |--*Hulsanpes* (!)
  |        |--*Microraptor*
  |        `--basal Troodontidae
  `--+--*Yandangornis* (!)
     |--*Sapeornis*
     |--*Omnivoropteryx*
     `--+--*Confuciusornis*
        `--+--*Jibeinia*
           `--+--Enantiornithes
              `--Euornithes

Enantiornithes
|--*Iberomesornis*
`--+--*Protopteryx*
  `--+--*Longipteryx*
     `--+--*Noguerornis*
        `--+--*Eocathayornis*
           |--*Eoenantiornis*
           `--+--*Sinornis*
              `--+--unnamed Lebanon
                 `--+--+--*Halimornis*
                    |  `--+--*Gobipteryx*
                    |     `--*Longirostravis*
                    `--+--*Concornis*
                       `--+--*Eoalulavis*
                          |--*Enantiornis*
                          |--*Avisaurus*
                          |--*Soroavisaurus*
                          |--*Vescornis*
                          `--+--*Cuspirostrisornis*
                             `--*Neuquenornis*

Euornithes
|--*Vorona*
`--+--*Liaoningornis* (!)
  `--+--*Yanornis*
     `--+--*Yixianornis*
        `--+--*Patagopteryx*
           `--+--*Apsaravis*
              |--*Ambiortus*
              |--*Songlingornis*
              |--*Gansus*
              |--Hesperornithes
              |--*Ichthyornis*
              `--*Anas*

The majority-rule tree resolves some of the polytomies:

--100--basal Troodontidae
  |--*Microraptor*
  |--*Hulsanpes*
  `--78--*Archaeopteryx*
      `--89--*Rahonavis*
          |--*Shenzhouraptor*
          `--*Jixiangornis*

--74--*Omnivoropteryx*
  `--76--*Sapeornis*
    `--Pygostylia 100

--100--*Eocathayornis*
   `--94--*Eoenantiornis*
       `--100 *Sinornis* & allies

--100--*Enantiornis*
   `--78--*Eoalulavis*
       |--100 *C.* + *N.*
       `--51--*Soroavisaurus*
           `--73--*Avisaurus*
               `--*Vescornis*

--Ornithurae 100
   |--*Apsaravis*
   `--62--*Ambiortus*
       |--*Songlingornis*
       |--*Gansus*
       `--63--Hesperornithes
           `--83--*Ichthyornis*
               `--*Anas*

I expected *Patagopteryx* to jump up, but *Liaoningornis* jumping back to 
Euornithes and *Hulsanpes* settling among the long-tailed birds are 
interesting phenomena. *Omnivoropteryx* more basal than *Sapeornis* is also 
strange.

Next I'll remove *Hulsanpes* and *Ambiortus* in unweighted and weighted 
analyses.