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  2. Pachycephalosauria - Wikipedia

    en.wikipedia.org/wiki/Pachycephalosauria

    Sullivan also rejected attempts by Sereno (1986), in his phylogenetic studies, [15] to re-define Pachycephalosauridae to include only "dome-skulled" species (including Stegoceras and Pachycephalosaurus), while leaving more "basal" species outside that family in Pachycephalosauria. Therefore, Sullivan's use of Pachycephalosauridae is equivalent ...

  3. Hanssuesia - Wikipedia

    en.wikipedia.org/wiki/Hanssuesia

    Hanssuesia is based on a skull dome originally named Troodon sternbergi by Barnum Brown and Erich Maren Schlaikjer in 1943. The specific name honoured Charles Mortram Sternberg who found the dome in 1928 near Steveville in south Alberta. [1] In 1945, it was transferred to Stegoceras by C.M. Sternberg himself, as a Stegoceras sternbergi. [2]

  4. Pachycephalosaurus - Wikipedia

    en.wikipedia.org/wiki/Pachycephalosaurus

    Brown & Schlaikjer, 1943 ... Robert Sullivan suggested in 2006 that ANSP 8568 is more like the ... Pachycephalosaurus is the most famous member of Pachycephalosauria, ...

  5. Timeline of pachycephalosaur research - Wikipedia

    en.wikipedia.org/wiki/Timeline_of...

    Sullivan described the new genus Colepiocephale to house the species Stegoceras lambei. He also erected the new genus Hanssuesia to house the species Troodon sternbergi. [3] Artist's restoration of Alaskacephale. 2005. A. O. Averianov, T. Martin, and A. A. Bakirov described the new genus and species Ferganocephale adenticulatum. [13]

  6. Stegoceras - Wikipedia

    en.wikipedia.org/wiki/Stegoceras

    In 2006, Sullivan argued against the idea that the extent of doming was useful in determining taxonomic affinities between pachycephalosaurs. [32] In 2003, Sullivan found Stegoceras itself to be more basal (or "primitive") than the "fully-domed" members of the subfamily Pachycephalosaurinae, elaborating on conclusions reached by Sereno in 1986.

  7. Alaskacephale - Wikipedia

    en.wikipedia.org/wiki/Alaskacephale

    Alaskacephale was a member of the group Pachycephalosauria, a family of thick-skulled, herbivorous, bipedal dinosaurs that lived during the Cretaceous period in Asia and North America. [7] The last pachycephalosaurs went extinct during the Cretaceous-Paleogene extinction event , the last surviving genus being Pachycephalosaurus itself.

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  9. Marginocephalia - Wikipedia

    en.wikipedia.org/wiki/Marginocephalia

    Pachycephalosauria Marginocephalia ( / ˌ m ɑːr dʒ ə n oʊ s ə ˈ f æ l i ə / Latin: margin-head) is a clade of ornithischian dinosaurs that is characterized by a bony shelf or margin at the back of the skull.