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Re: It Came From New Papers
Jerry Harris wrote:
Zhao, X., Li, D., Han, G., Hao, H., Liu, F., Li, L., and Fang, X. 2007.
_Zhuchengosaurus maximus_ from Shandong Province. Acta Geoscientia Sinica
-- appears to be a hadrosaur, based on the English papers being cited in
Indeed it is a hadrosaur. Here's the abstract...
"_Zhuchengosaurus maximus_ Zhao [sic], gen. et sp. nov. was a mild
herbivorous dinosaur, which lived in Zhucheng, Shandong Province in late
Mesozoic 100 Ma. The specimen is a skeleton assembled by parts collected
from several individuals of the same species. With a height of 9.1 m and a
length of 16.6 m, it was the tallest individual among the ornithopods. It
had small forelimbs and tough hind legs and its sacra were forned by 6 cones
[sic]. It is another new finding after the discovery of the giant
The abstract is a little short on details (*ahem*); but the size estimates,
if true, are certainly impressive. (Nearly 17 m long!) However, I can't
read Chinese so I can't determine (a) how the authors obtain their size
estimates; (b) how much of the composite skeleton is based on real fossil
material; or (c) how exactly _Zhuchengosaurus_ is distinct from
_Shantungosaurus_ (they are both hadrosaurines).
I don't know of any ornithischians larger than "16.6 m". Except for maybe
_Hypsibema_. Linear dimensions only tell part of the story, given that
hadrosaurs had relatively big heads, short necks, and deep tails. Thus,
unlike sauropods, most of a hadrosaur's body length was not eaten up by a
snakey neck and tail. In other words, a 17m hadrosaur could easily kick the
butt of a 17m sauropod. It's a good thing that the authors describe
_Zhuchengosaurus_ as "mild". ;-)
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