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Taxon: Suborder †Pachycephalosauria Maryañska & Osmólska, 1974 (dinosaur)
Classification by:

Vertebrata Cuvier, 1812 - vertebrates
Count: [ff] 7c;100o;734f; ‡2o;8f; †2c;109o;819f;10g [22 Aug 2017]
   Gnathostomata
  Count: [ff] 6c;98o;732f; ‡2o;8f; †2c;104o;782f;9g [22 Aug 2017]
     Teleostomi
    Count: [ff] 5c;94o;691f; ‡2o;8f; †1c;82o;712f;7g [22 Aug 2017]
       Tetrapoda Hatschek & Cori 1896 [Gauthier, Kluge & Rowe 1988]
      Count: [ff] 4c;54o;292f; ‡2o;8f; †56o;574f;3g [22 Aug 2017]
         Amniota Haeckel, 1866 [Gauthier, Kluge & Rowe 1988] - amniotes
        Count: [ff] 3c;51o;265f; ‡2o;8f; †48o;494f;3g [22 Aug 2017]
           Class Reptilia Linnaeus, 1758 [paraphyletic] - reptiles
          Count: [ff] 4o;48f; †19o;242f;2g [29 Jul 2017]
             Subclass Diapsida Osborn, 1903 - diapsids see Clade Diapsida Osborn 1903 [Gauthier & de Queiroz 2020]
            Count: [ff] 3o;37f; †14o;150f;1g [27 Jul 2017]
               Infraclass Archosauromorpha Huene, 1946 see Clade Archosauromorpha Huene 1946 [Benton 1985], nom. cl. inval.
              Count: [ff] 1o;3f; †7o;98f [27 Jul 2017]
                 Superorder Archosauria Cope, 1869 - archosaurs see Clade Archosauria Cope 1869 [Gauthier & Padian 1985], nom. cl. inval.
                Count: [ff] 1o;3f; †4o;93f [27 Jul 2017]
                   Dinosauria Owen 1841 [Padian & May 1993], nom. cl. inval. see Clade Dinosauria Owen 1842 [Langer, Novas, Bittencourt, Ezcurra & Gauthier 2020]
                  Count: [†f] †2o;44f [27 Jul 2017]
                     Order †Ornithischia Seeley, 1887
                    Count: [†f] †15f [27 Jul 2017]
                       Suborder †Pachycephalosauria Maryañska & Osmólska, 1974 see Infraorder Pachycephalosauria Maryañska & Osmólska, 1974
                      Count: [†f] †2f [27 Jul 2017]
                         1 Family †Pachycephalosauridae Sternberg, 1945
                        Count: -
                         2 Family †Homalocephalidae Dong, 1978 see Family Pachycephalosauridae Sternberg, 1945
                        Count: -

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Last updated: 1 Feb 2024