-
earliest unequivocal stegosaurian,
Bashanosaurus primitivus, was
found in the
Bathonian Shaximiao Formation of China.
Stegosaurians were
armored dinosaurs...
- species,
Stegosaurus ungulatus, is one of the
largest known of all the
stegosaurians, with the
largest known specimens measuring about 7.5
metres (25 ft)...
-
represents the
culmination of a
trend towards longer necks seen in
stegosaurians. The Thyreophora, the
larger group they
belong to,
originally seem to...
- 131 million
years ago.
Discovered in 1845, it was one of the
first stegosaurians found. Its only remains, a
partial skull,
isolated teeth, and fragments...
-
teeth in the
front of its mouth. All
later stegosaurians lost
these teeth. Like many
other stegosaurians, it had
plates all down its back and spikes...
- autapomorphy,
Alcovasaurus is
different from the Jur****ic
North American stegosaurians Stegosaurus stenops,
Stegosaurus sulcatus and
Hesperosaurus in that...
-
features running down the animal's back were
compared to the back
plates of
stegosaurian dinosaurs. The
relief has
since become a po****r
piece of "evidence"...
-
Period of
China and Mongolia. As such, it was one of the last
genera of
stegosaurians known to have existed.
Wuerhosaurus homheni is the type species, described...
-
major groups such as
ankylosaurians (armored
herbivorous quadrupeds),
stegosaurians (plated
herbivorous quadrupeds),
ceratopsians (bipedal or quadrupedal...
- the
spikes and
shields of ankylosaurs, the bony
plates and
spines of
stegosaurians evolved from the low-keeled
osteoderms characteristic of
basal thyreophorans...
