• Thumbnail for Sphaerotholus
    the placement of the genus Sphaerotholus within the Pachycephalosauria. They recovered all proposed species of Sphaerotholus as a monophyletic group of...
    12 KB (1,145 words) - 23:46, 26 March 2024
  • Thumbnail for Pachycephalosaurus
    Wannanosaurus, Goyocephale, Stegoceras, Homalocephale, Tylocephale, Sphaerotholus, and Prenocephale. Within the tribe Pachycephalosaurini, Pachycephalosaurus...
    45 KB (4,310 words) - 18:37, 23 April 2024
  • Thumbnail for Prenocephale
    Sullivan considered Foraminacephale, "Prenocephale" edmontonensis, and Sphaerotholus goodwini to form a clade with the Asian taxon P. prenes. He considered...
    8 KB (671 words) - 09:37, 21 March 2024
  • Thumbnail for Pachycephalosauria
    Sphaerotholus goodwini Sphaerotholus buchholtzae...
    40 KB (3,578 words) - 18:39, 23 April 2024
  • Thumbnail for Platytholus
    Sphaerotholus edmontonensis Sphaerotholus goodwini Sphaerotholus buchholtzae Pachycephalosaurus Alaskacephale...
    4 KB (203 words) - 21:06, 21 February 2024
  • Thumbnail for Alaskacephale
    three-quarters the size of Prenocephale, and about the same size as Sphaerotholus and Foraminacephale. The latter measured 1.5 metres (4.9 ft) long and...
    19 KB (1,858 words) - 02:18, 24 February 2024
  • Thumbnail for Triceratops
    derived pachycephalosaurids Stygimoloch, Dracorex, Pachycephalosaurus, Sphaerotholus, and an undescribed specimen from North Dakota. The first two might...
    95 KB (10,019 words) - 18:58, 21 April 2024
  • Thumbnail for Parasaurolophus
    Titanoceratops ouranos; and the pachycephalosaurs Stegoceras novomexicanum and Sphaerotholus goodwini. Saurischians include the tyrannosaurid Bistahieversor sealeyi;...
    64 KB (6,888 words) - 21:52, 20 April 2024
  • Thumbnail for Stegoceras
    considered a juvenile pachycephalosaur of uncertain species (though perhaps Sphaerotholus goodwini). In 2006, Sullivan and Spencer G. Lucas considered it a juvenile...
    82 KB (9,856 words) - 18:30, 20 February 2024
  • Thumbnail for Tyrannosaurus
    Ankylosaurus and Denversaurus, the pachycephalosaurs Pachycephalosaurus and Sphaerotholus, and the theropods Ornithomimus, Struthiomimus, Acheroraptor, Dakotaraptor...
    213 KB (23,450 words) - 04:11, 24 April 2024