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Jeholosaurus postcranial anatomy in new JVP



From: Ben Creisler
bcreisler@gmail.com


The new issue of JVP is out and has not been mentioned yet on the DML.
The single dinosaur paper is:

Feng-Lu Han, Paul M. Barrett, Richard J. Butler & Xing Xu (2012)
Postcranial anatomy of Jeholosaurus shangyuanensis (Dinosauria,
Ornithischia) from the Lower Cretaceous Yixian Formation of China.
Journal of Vertebrate Paleontology 32(6): 1370-1395
DOI:10.1080/02724634.2012.694385
http://www.tandfonline.com/doi/full/10.1080/02724634.2012.694385



Jeholosaurus shangyuanensis is a small ornithischian dinosaur from the
Lower Cretaceous Yixian Formation of the Lujiatun locality, Liaoning
Province, China. Here, we provide the first detailed description of
its postcranial skeleton based on the holotype and four other
well-preserved skeletons, and compare it with material of other
primitive cerapodans. Jeholosaurus can be diagnosed on the basis of
one postcranial autapomorphy, relating to the absence of parapophyses
from the anterior dorsal vertebrae, and a unique combination of
postcranial characters, but its anatomy is otherwise similar to that
of many other basal ornithischians. A phylogenetic analysis
incorporating these new postcranial data confirms previous suggestions
that Jeholosaurus is a basal ornithopod and that it forms a clade with
Changchunsaurus and Haya; Koreanosaurus and Yueosaurus might also
belong to this clade, though additional material of both will be
required to test this hypothesis. The name Jeholosauridae is proposed
for this apparently endemic group of Cretaceous East Asian taxa.