-
derived members of the
group are
large obligate quadrupeds.
Primitive marginocephalians are
found in Asia, but the
group migrated upwards into
North America...
- The
Horseshoe Canyon Formation is a
stratigraphic unit of the
Western Canada Sedimentary Basin in
southwestern Alberta. It
takes its name from Horseshoe...
-
Marginocephalians reported from the
Lance Formation Genus Species Location Stratigraphic Position Material Notes Images Agathaumas A.
sylvestris "Partial...
- The
Judith River Formation is a fossil-bearing
geologic formation in Montana, and is part of the
Judith River Group. It
dates to the Late Cretaceous, between...
-
diapsid predators. The
crests and
frills of some dinosaurs, like the
marginocephalians,
theropods and lambeosaurines, may have been too
fragile to be used...
- The
Djadochta Formation (sometimes
spelled Djadokhta, Djadokata, or Dzhadokhtskaya) is a
geological formation in the Gobi
Desert of Mongolia. It dates...
- Thyreophora, a
group of
armoured dinosaurs distinct from
ornithopods and
marginocephalians.
Historically used for
forms lacking large vertical plates, Kenneth...
- and
possibly Europe Yinlong, an
early marginocephalian dinosaur from Asia Chaoyangsaurus, an
early marginocephalian dinosaur from Asia Juramaia, a basal...
-
archosaur species are
facultative bipeds, most
notably ornithopods and
marginocephalians, with some
recorded examples within sauropodomorpha.
Different facultatively...
- groups,
ceratopsians and
pachycephalosaurians into a
single clade.
Marginocephalians first appeared in the Jur****ic
period as
small bipedal animals. However...
