phylogenies from Sereno 1999, pt. 2

["Thomas R. Holtz, Jr." <th81@umail.umd.edu>]

Here are the results of the saurischian analyses from Sereno, 1999.

As before: the analyses are broken up into eight different studies, then the
results were combined for the figures.  Here are the different analyses
(taxa with "*" were operational taxonomic units in that study):

V. Prosauropoda
Theropoda *
Sauropodomorpha
  Sauropoda *
  Prosauropoda
    _Riojasaurus_ *
    _"Griposaurus" sinensis_ *
   unnamed
     _Ammosaurus_ (= _Anchisaurus_) * [note: now there's some news!]
     Plateosauria
       Plateosauridae
         _Lufengosaurus_ *
         unnamed
           _Coloradisaurus_ *
           unnamed
             _Sellosaurus_ *
             _Plateosaurus_ *
       Massospondylidae
         _Yunnanosaurus_ *
         _Massospondylus_ *

[Note: this is a nice, short matrix: 9 ingroup taxa, 32 characters.  For
those teaching systematics with a dinosaurian bent, this might be worked
into a useful practical assignment.]

VI. Sauropoda
Theropoda *
Sauropodomorpha
  Prosauropoda *
  Sauropoda
    _Vulcanodon_ *
    Eusauropoda
      _Shunosaurus_ *
      unnamed
        _Barapasaurus_ *
        unnamed
          _Omeisaurus_ *
          Neosauropoda
            Diplodocoidea
              Diplodocidae *
              Dicraeosaurinae *
            Macronaria
              _Haplocanthosaurus_ *
              unnamed
                _Camarasaurus_ *
                Titanosauriformes
                  Brachiosauridae *
                  Somphospondyli
                    _Euhelopus_ *
                    Titanosauria *

VII. Ceratosauria
Herrerasauridae *
Neotheropoda
  Tetanurae *
  Ceratosauria
    Ceratosauroidea
      _Elaphrosaurus_ *
      unnamed
        _Ceratosaurus_ *
        Abelisauridae
          _Abelisaurus_ *
          Carnotaurinae
            _Majungatholus_ *
            _Carnotaurus_ *
    Coelophysoidea
      _Dilophosaurus_ *
      unnamed
        _Liliensternus_ *
        Coelophysidae
          Procompsognathinae
            _Procompsognathus_ *
            _Segisaurus_ *
          Coelophysinae
            _Syntarsus_ *
            _Coelophysis_ *  [note: the data line is missing from _Coelophysis_]

VII. Tetanurae
Herrerasauridae *
Neotheropoda
  Ceratosauria *
  Tetanurae
    Spinosauroidea
      Spinosauridae *
      Torovsauridae *
    Neotetanurae
      Allosauroidea
        Allosauridae *
        Sinraptoridae *
      Coelurosauria
        Compsognathidae *
        _Ornitholestes_ * 
        _Deltadromeus_ * [position of it is not certain]
        Maniraptoriformes
          Ornithomimosauria
            Therizinosauridae *
            Ornithomimoidea
              Alvarezsauridae *
              Ornithomimidae *
          Tyrannoraptora
            Tyrannosauroidea *
            Maniraptora
              Oviraptorosauria
                _Caudipteryx_ *
                Oviraptoroidea
                  Oviraptoridae *
                  Caenagnathidae *
              Paraves
                Deinonychosauria
                  Troodontidae *
                  Dromaeosauridae *
                Aves

VIII. Basal Aves
Oviraptorosauria *
Paraves
  Deinonychosauria *
  Aves
    _Archaeopteryx_ *
    Ornithurae
      _Confuciusornis_ *
      Ornithothoraces
        Enantiornithes *
        Euornithes *

Whew!

                        Thomas R. Holtz, Jr.
                        Vertebrate Paleontologist
Deptartment of Geology                  Director, Earth, Life & Time Program
University of Maryland                  College Park Scholars
College Park, MD  20742       
Webpage: http://www.geol.umd.edu        Phone:301-405-4084
Email:tholtz@geol.umd.edu               Fax:  301-314-9661