- taxa to the
genus Stegoceras, made up of "all
other dome-headed
pachycephalosaurians; this was
referred to as
Pachycephalosaurinae Phylogenetic analyses...
-
family Homalocephalidae, now
thought to be an
unnatural ****embly of
pachycephalosaurians without domed skulls.
Although its
remains are from a very small...
- Goyocephale,
Homalocephale and
Wannanosaurus being the most
derived pachycephalosaurians, and
their sister taxa
being Prenocephale and Tylocephale. This positioning...
-
ceratopsians (bipedal or
quadrupedal herbivores with neck frills),
pachycephalosaurians (bipedal
herbivores with
thick skulls),
ornithopods (bipedal or quadrupedal...
-
ornithischians are ankylosaurians, ornithopods, ceratopsians, and
pachycephalosaurians.
Three ankylosaurians are known: Ankylosaurus, Denversaurus, and...
-
ornithischians are ankylosaurians, ornithopods, ceratopsians, and
pachycephalosaurians. One
ankylosaurian and two
nodosaurians are known, Ankylosaurus,...
- Thescelosaurus, the
hadrosaurid Edmontosaurus, an
indeterminate nodosaur, the
pachycephalosaurian Pachycephalosaurus, and the
theropods Struthiomimus, Ornithomimus...
-
Troodon on
account of
their similarly omnivorous and
unique teeth.
Pachycephalosaurians are
unique for
their tall,
thickened skulls and small,
bipedal bauplan...
- the
ankylosaurid Tarchia and
several titanosaurian sauropods and
pachycephalosaurians. The rock
facies of this
formation suggest the
presence of stream...
- of the
skull roof,
which were
previously thought to be
unique to
pachycephalosaurians. The
presence of
these features in
Yinlong indicates these as actual...
