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Monotypic taxon:
Infraorder †
Pachycephalosauria
Maryañska & Osmólska, 1974
(dinosaur)
Taxa
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Hierarchy
Nomenclature
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Entity:
†Marginocephalia (Clade)
..†Ceratopsia (Infraorder)
..†Pachycephalosauria (Infraorder)
....†Pachycephalosauridae (Family)
Authorship
SN2000 author citation
:
(T. Maryañska & H. Osmólska, 1974)
Original name
:
Maryañska, T. & Osmólska, H. 1974.
Palaeontologia Polonica
30
Subsequent rank
:
Original spelling
:
Types
Nominotypical taxon [ICZN]
:
†
Pachycephalosauridae
(Family)
Sternberg, 1945
Variants
Clade-based name
:
†
Pachycephalosauria
(Clade)
Maryañska & Osmólska 1974
Ref:
M.J. Benton, 2015
: 441.
[inferred]
Former rank
:
†
Pachycephalosauria
(Order)
Maryañska & Osmólska, 1974
Ref:
M.J. Benton, 2015
: 441.
[inferred]
Former rank
:
†
Pachycephalosauria
(Suborder)
Maryañska & Osmólska, 1974
Ref:
M.J. Benton, 2015
: 441.
[inferred]
Synonyms
Including
:
†
Goyocephalia
(Infraorder)
Sereno, 1986
Including
:
†
Homalocephaloidea
(Superfamily)
Dong, 1978
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Last updated:
28 Aug 2026