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Does removing flight-related characters support secondary flightlessness?



That's a question I asked last year when I was new to the list.  See http://www.cmnh.org/fun/dinosaur-archive/2000Jan/msg00269.html .  I'm not sure about the validity of the experiment, but it sure did get some interesting results.  I removed 18 flight-related characters from my 318 character analysis of coelurosaurs and got a radically new phylogeny.  Segnosaur-oviraptorosaurs and Bagaraatan are arctometatarsalians.  Troodontids, Unenlagia, alvarezsaurids, Avimimus and Yandangornis are supported as being secondarily flightless (but not dromaeosaurs, which are in my complete analysis, hmmm).  Very odd indeed....  Both the "flighty characters removed" results and my normal results are shown below.  If anyone has suggestions for characters not involving the pectoral girdle that I could remove, feel free to write.
 
no flight-related characters-
 
(Tyrann (Nqweba (Nedcolb (Coelurus ((Ornithom (Bagarat (Segno (Protarc + Ovirap)))) (Compsog (Scipion (Ornithol (Achillo (Dromaeo (Bambi (Sinornith (Microrap ((Rahona + Archaeop) (Troodo (Unenlag (Alvarez (Avimim (Yandang + Pygostylia)))))))))))))))))))
 
Normal-
 
|
+-----Tyrannosauroidea (Siamotyrannus, Dryptosaurus, Tyrannosauridae)
|   /Ornitholestes
+--Nedcolbertia
+--Compsognathidae
+--Scipionyx, Coelurus
+-----Ornithomimosauria
+--Nqwebasaurus
|
|    +----Protarchaeopteryx
|    |
+-+-----Segnosauria
|    |
|   +---+---Caudipteryx
|     |     |
|      |    +---Nomingia
|       |
|       +---Microvenator
|        |
|        +---Caenagnathidae
|         |
|         +---Oviraptoridae
|
+-----Bagaraatan
|
 |
   |
    +---+--+--Alvarezsauridae
     |      |    |
     |      |    +-+--Patagonykus
     |      |        |
     |      |        +--Mononykinae
     |      |
     |     +----Avimimus
     |
     +--------Troodontidae
     |
     |               +-------Unenlagia
     |                | /---------Sinornithosaurus
     +-+--+---+---+---Dromaeosauridae (Velociraptor, Deinonychus, Saurornitholestes,
     |    |    |      |      |                                   Adasaurus, Achillobator, Dromaeosaurus)
     |    |    |      |      |
     |    |    |      |      +---Bambiraptor
     |    |    |      +------Microraptor
     |    |    +------Rahonavis
     |    +-------Archaeopteryx
      |
      |
     +-----Yandangornis
      |
      +-----Confuciusornithidae
       |
      +-----Protopteryx
       |
      +-----Jibeinia
       |
       +-----Enantiornithines
        |
       +-----Ornithurae
Mickey Mortimer