Xianshanosaurus

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Xianshanosaurus
Temporal range: Early Cretaceous
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Dinosauria
Order: Saurischia
Suborder: Sauropodomorpha
Clade: Neosauropoda
Clade: Macronaria
Clade: Somphospondyli
Clade: Titanosauria
Genus: Xianshanosaurus
et al., 2009
Type species
Xianshanosaurus shijiagouensis
et al., 2009

Xianshanosaurus is a genus of sauropod dinosaur from the early Late Cretaceous of what is now China. It was described in 2009 by a team of Chinese paleontologists. The type species is X. shijiagouensis.[1]

Classification[edit]

Mathew Wedel and Mike Taylor, made a cladistic analysis of the pneumaticity of caudal vertebrae. The analysis found that Xianshanosaurus was a basal titanosaurian, with Malawisaurus and Trigonosaurus as its sister taxa. The cladogram found is shown below:[2]

Macronaria

Camarasaurus





Giraffatitan




Cedarosaurus



Venenosaurus






Malawisaurus



Trigonosaurus



Xianshanosaurus





Gondwanatitan



Aeolosaurus






Alamosaurus



Opisthocoelicaudia





Neuquensaurus




Rocasaurus



Saltasaurus









References[edit]

  1. ^ Lü, J.; Xu, L.; Jiang, X.; Jia, S.; Li, M.; Yuan, C.; Zhang, X.; Ji, Q. (2009). "A preliminary report on the new dinosaurian fauna from the Cretaceous of the Ruyang Basin, Henan Province of central China". Journal of the Paleontological Society of Korea. 25: 43–56. 
  2. ^ Wedel, M. J.; Taylor, M. P. (2013). "Caudal Pneumaticity and Pneumatic Hiatuses in the Sauropod Dinosaurs Giraffatitan and Apatosaurus". PLoS ONE. 8 (10): e78213. doi:10.1371/journal.pone.0078213. PMC 3812994Freely accessible. PMID 24205162.