- the
clade Marginocephalia. With the
exception of two species, most
pachycephalosaurs lived during the Late
Cretaceous Period,
dating between about 85.8...
- with five-fingered hands.
Pachycephalosaurus is the largest-known
pachycephalosaur,
known for
having an
extremely thick,
slightly domed skull roof; visually...
-
known only from
skull domes,
Stegoceras was one of the
first known pachycephalosaurs, and the
incompleteness of
these initial remains led to many theories...
-
found in Asia, but the
group migrated upwards into
North America.
Pachycephalosaurs, or "thick-headed reptiles", have
primitive features that include...
- "ornithopods") is a
clade of the
dinosaur clade Ornithischia, that
includes pachycephalosaurs,
ceratopsians and
ornithopods Cerapoda is
divided into two groups:...
- The
Nemegt Formation (also
known as
Nemegtskaya Svita) is a
geological formation in the Gobi
Desert of Mongolia,
dating to the Late Cretaceous. The formation...
- 1924,
Gilmore suggested that the
tooth belonged to the
herbivorous pachycephalosaur Stegoceras and that
Stegoceras was in fact a
junior synonym of Troodon...
- roof of its skull,
which was
originally mistaken for the dome of a
pachycephalosaur. It also had more
teeth in both
upper and
lower jaws than most abelisaurids...
- (1982). "Goyocephale
lattimorei gen. et sp. n., a new flat -headed
pachycephalosaur (Ornithlschia , Dinosauria) from the
Upper Cretaceous of Mongolia"...
-
autapomorphies of the
species have been identified.
Horner saw some
pachycephalosaur skulls as
indicative for a
taxon in
between Stegoceras and Pachycephalosaurus;...
