Re: Revised Ornithischian Classification

["Ken Kinman" <kinman@hotmail.com>]

Disclaimer:
    The following classification is a work-in-progress (subject to further 
revision).  I am a classificationist, not a professional paleontologist, and 
it is certainly not directly based on a study of actual specimens.  It is an 
eclectic mix of various cladograms, classifications, opinions, 
interpretations, and my own personal viewpoint of how these taxa are 
interrelated based on my assessment of the information I presently have 
available.
    Note that I have again shifted a few of the plesia around to reflect 
some of the recent feedback (Jaime's posts were particularly helpful).  
However, I am solely responsible for the particular topology that is 
expressed below.  The buck stops here.  My continued coding of Thyreophora 
as paraphyletic, rather than holophyletic, is certainly a minority opinion.
   The placement of Notohypsilophodon is very tentative (in Hypsil. clade 
3, i.e., as a possible rhabdomorph).  And I may move Echinodon closer to 
Scutellosauridae if I can be convinced that the scutes actually belonged to 
Echinodon.
      ----"Editor-at-fault",
                    Ken Kinman

ORDER ORNITHISCHIFORMES
   1  Pisanosauridae
   2  Lesothosauridae
   3  Scutellosauridae
   B  Ankylosauridae (incl. Scelidosaurus)
   4  Plesion _Emausaurus_
   B  Stegosauridae
   5  Plesion _Echinodon_
   6  Plesion _Jeholosaurus_
   7  Thescelosauridae
   8  Plesion _Agilisaurus_
  9A  Heterodontosauridae
   B  Stenopelicidae
   C  Pachycephalosauridae
   D  Chaoyangsauridae
   E  Psittacosauridae
   F  Protoceratopsidae
  _a_ Ceratopsidae
  10  Plesion _Bugenasaura_
  11  Hypsilophodontidae
           1  Plesion "Y." multidens
           B  Othnielia (incl. Drinker?)
           C  Zephyrosaurus
           D  Orodromeus
           ?  Laeallynasaura
           2  Hypsilophodon
           ?  Yandusaurus
           3  Rhabdodon
           B  Tenontosaurus
           ?  Muttaburrasaurus
           ?  Notohypsilophodon
           4  Parksosaurus
           5  Gasparinisaura
           6  {{Dryosauridae to
              Hadrosauridae}} (dryomorphs)
 _1_  Dryosauridae
  2   Camptosauridae
  3   Iguanodontidae
 _a_  Hadrosauridae
******************************************

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