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Pachycephalosauria

Reptilia

Synonymy list
YearName and author
1974Pachycephalosauria Maryańska and Osmólska p. 50
1983Pachycephalosauria Zhao pp. 299-300
1984Pachycephalosauria Russell p. 29
1985Pachycephalosauria Cooper p. 291
1985Pachycephalosauria Maryanska and Osmólska p. 143 fig. 1
1986Pachycephalosauria Sereno
1987Pachycephalosauria Sues and Galton pp. 36-37
1988Pachycephalosauria Carroll
1990Pachycephalosauria Benton p. 19
1990Pachycephalosauria Dodson p. 562
1994Pachycephalosauria Olshevsky and Ford p. 91
1997Pachycephalosauria Sereno p. 443
1998Pachycephalosauria Sereno p. 62
1999Pachycephalosauria Sereno p. 2138 fig. 2
2000Pachycephalosauria Sereno p. 482
2001Pachycephalosauria Peng et al. p. 36
2002Pachycephalosauria Buchholz p. 20
2004Pachycephalosauria Weishampel p. 323
2006Pachycephalosauria Xu et al. p. 2139 fig. 3
2007Pachycephalosauria Butler et al. p. S18 fig. S2
2008Pachycephalosauria Butler et al. pp. 21-22
2012Pachycephalosauria Han et al. p. 1391 fig. 14
2020Pachycephalosauria Dieudonné et al.

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Deuterostomia
phylumChordataHaeckel 1874
subphylumVertebrata
superclassGnathostomata
—Osteichthyes()
subclassSarcopterygii()
subclassDipnotetrapodomorpha(Nelson 2006)
subclassTetrapodomorpha()
—Tetrapoda
—Reptiliomorpha
—Anthracosauria
subclassAmphibiosauriaKuhn 1967
—Cotylosauria()
—Amniota
—Sauropsida
classReptilia
RankNameAuthor
subclassEureptilia()
—Romeriida
—Diapsida()
—Archosauromorpha(Huene 1946)
—Crocopoda
—ArchosauriformesGauthier 1986
—Eucrocopoda
—Archosauria()
informalAvemetatarsalia
—Ornithodira
—Dinosauromorpha
—Dinosauriformes
—Dinosauria()
—Ornithischia()
—Genasauria
—Cerapoda
—Marginocephalia
—Pachycephalosauria()
—Pachycephalosauria()

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Unr. †Pachycephalosauria Maryańska and Osmólska 1974
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Unr. †Eupachycephalosauria Dieudonné et al. 2020
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G. †Homalocephale Maryańska and Osmólska 1974
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†Homalocephale calathocercos Maryańska and Osmólska 1974
G. †Pachycephalosaurus Brown and Schlaikjer 1943
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Invalid names: Dracorex hogwartsia Bakker et al. 2006 [synonym], Pachycephalosaurus grangeri Brown and Schlaikjer 1943 [synonym], Pachycephalosaurus reinheimeri Brown and Schlaikjer 1943 [synonym], Stygimoloch spinifer Galton and Sues 1983 [synonym], Tylosteus ornatus Leidy 1872 [synonym]
Invalid names: Dracorex Bakker et al. 2006 [synonym], Stygimoloch Galton and Sues 1983 [synonym], Tylosteus Leidy 1872 [synonym]
G. †Prenocephale Maryańska and Osmólska 1974
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†Prenocephale prenes Maryańska and Osmólska 1974
G. †Stegoceras Lambe 1902
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†Stegoceras novomexicanum Jasinski and Sullivan 2011
†Stegoceras validum Lambe 1902
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Invalid names: Ornatotholus browni Wall and Galton 1979 [synonym]
Invalid names: Hanssuessia Sullivan 2003 [synonym], Ornatotholus Galton and Sues 1983 [synonym]
G. †Goyocephale Perle et al. 1982
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†Goyocephale lattimorei Perle et al. 1982
Infraor. †Goyocephalia Sereno 1986
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Invalid names: Homalocephaloidea Sereno 1986 [empty]
Fm. †Pachycephalosauridae Sternberg 1945
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G. †Amtocephale Watabe et al. 2011
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†Amtocephale gobiensis Watabe et al. 2011
G. †Colepiocephale Sullivan 2003
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†Colepiocephale lambei Sternberg 1945
G. †Hanssuesia Sullivan 2003
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†Hanssuesia sternbergi Brown and Schlaikjer 1943
Subfm. †Pachycephalosaurinae Sereno 1997
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G. †Acrotholus Evans et al. 2013
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†Acrotholus audeti Evans et al. 2013
G. †Foraminacephale Schott and Evans 2017
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†Foraminacephale brevis Lambe 1918
G. †Platytholus Horner et al. 2023
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†Platytholus clemensi Horner et al. 2023
G. †Sphaerotholus Williamson and Carr 2003
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†Sphaerotholus buchholtzae Williamson and Carr 2003
†Sphaerotholus edmontonensis Brown and Schlaikjer 1943
†Sphaerotholus goodwini Williamson and Carr 2003
†Sphaerotholus lyonsi Woodruff et al. 2023
†Sphaerotholus triregnum Woodruff et al. 2023
Unr. †Pachycephalosaurini Sullivan 2003
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G. †Alaskacephale Sullivan 2006
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†Alaskacephale gangloffi Sullivan 2006
G. †Sinocephale Evans et al. 2021
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†Sinocephale bexelli Bohlin 1953
G. †Tylocephale Maryańska and Osmólska 1974
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†Tylocephale gilmorei Maryańska and Osmólska 1974
Invalid names: Gravitholus Wall and Galton 1979 [nomen dubium], Texacephale Longrich et al. 2010 [nomen dubium], Tholocephalidae Sereno 1986 [synonym]
G. †Qiyunshanpus Yu 1998
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Invalid names: Qiyunshanpus xiaohutianensis Yu 1998 [nomen nudum]
G. †Tianyulong Zheng et al. 2009
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†Tianyulong confuciusi Zheng et al. 2009
G. †Wannanosaurus Hou 1977
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Invalid names: Homalocephalidae Dong 1978 [empty], Pachycephalosauroidea Zhao 1983 [empty], Tianchungosauroidea Zhao 1983 [empty]
Diagnosis
No diagnoses are available