Jiangshanosaurus

Source: Wikipedia, the free encyclopedia.
For the
sauropodomorph dinosaur, see Jingshanosaurus
.

Jiangshanosaurus
Temporal range:
Ma
↓
Skeletal mount
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Clade: Saurischia
Clade: †Sauropodomorpha
Clade: †Sauropoda
Clade: †Macronaria
Clade: †
Titanosauriformes
Genus: †Jiangshanosaurus
Species:
†J. lixianensis
Binomial name
†Jiangshanosaurus lixianensis
Tang et al., 2001

Jiangshanosaurus is a genus of herbivorous

million years ago,[1] during the Turonian-Coniacian stage of the Late Cretaceous
.

Discovery and naming

Closer view of body

In 1977 and 1978 a sauropod skeleton was excavated by paleontologists Wei Feng, Wu Weitang and Kang Ximin in the

Chinese province of Zhejiang
.

The

pubic bones, the ischia, and a left femur.[2]
The genus name refers to Jiangshan County; the specific name refers to the village of Lixian.

In 2019, Philip Mannion e.a. redescribed the holotype.[3]

Description

Size

According to paleontologist

Thomas R. Holtz Jr. the exact size of this sauropod cannot be determined.[4] Gregory S. Paul estimated its length at eleven meters and its weight at 2500 kg.[5]

Distinguishing traits

In 2019, Mannion e.a. indicated two distinguishing traits. They were

prezygapophyses, instead of touching them. The lower shaft of the ischium ends in a small process, formed as a hook, on its top outer side.[3]

Phylogeny

Although Jiangshanosaurus initially defied precise placement within Titanosauria, in 2017 paper considered it to be outside Lithostrotia.[6]

According to the 2019 study, Jiangshanosaurus was placed in the Somphospondyli in a basal position, outside the Titanosauria.[3]

References

  1. ISSN 1674-7313
    .
  2. ^ Feng Tang, Xi-Min Kang, Xing-Sheng Jin, Feng Wei, Wei-Tang Wu (2001) "A New Sauropod Dinosaur of Cretaceous From Jiangshan, Zhejiang Province" in: Vertebrata PalAsiatica. Bd. 39, Nr. 4, pp. 272–281.
  3. ^ a b c Philip D. Mannion; Paul Upchurch; Xingsheng Jin; Wenjie Zheng. 2019. "New information on the Cretaceous sauropod dinosaurs of Zhejiang Province, China: impact on Laurasian titanosauriform phylogeny and biogeography". Royal Society Open Science. 6(8): Article ID 191057
  4. ISBN 978-0-375-82419-7
    .
  5. ^ Paul, G. S. (2016). The Princeton Field Guide to Dinosaurs, 2nd Edition. Princeton University Press, p. 234.
  6. doi:10.1016/j.cretres.2016.09.006
    .
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