Tuojiangosaurus was a herbivore (plant-eater) that lived in
China
during the
late Jurassic period,
about 155 million years ago.
Its name means "Tuo River lizard", and was to chosen
based on the location in the Sichuan province in which it
was found.
Tuojiangosaurus was up to 23 feet (7 meters) long, and about 6½ feet (2 meters)
high. It weighed something around 4 tons.
One important difference from
Stegosaurus,
is that Tuojiangosaurus lacked spines on its vertebrae (to which
Stegosaurus
had muscles attached). From this, scientists deduct that
Tuojiangosaurus was probably therefore unable to rear up on its hind legs
(whereas Stegosaurus
is thought capable of performing such a feat) - and as a result,
the diet Tuojiangosaurus must have been restricted to low-lying vegetation.
The first fossils of
Tuojiangosaurus (two specimens were found, one of which was half complete)
were discovered in
1977,
and the animal was named in the same year. Today, a mounted skeleton of the animal
can be found in the Municipal Museum in Chongqing,
China,
and there is also a mounted cast of a skeleton in the
Natural History Museum,
London,
England.
"Tuojiangosaurus" means "Tuo River lizard" (the place in China where it was found).
Tuojiangosaurus was a member of the Ornithischia ("bird-hipped") order of dinosaurs. What this means, is that although Tuojiangosaurus was not closely related to birds, it did have similarly shaped pelvic bones.
Tuojiangosaurus lived about 155 million years ago, during the Jurassic period.
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