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Hongshanosaurus houi, new psittacosaur



From: Ben Creisler bh480@scn.org
Hongshanosaurus houi, new psittacosaur

In case this dinosaur has not mentioned here:

You H.L., Xu X. & Wang X.L., 2003. A new genus of 
psittacosauridae (Dinosauria : ornithopoda) and the origin 
and early evolution of Marginocephalian dinosaurs. ACTA 
GEOLOGICA SINICA (ENGLISH EDITION)
77(1): 15-20. MAR 2003
An almost complete juvenile dinosaur skull with 
lower jaw was discovered from the Early Cretaceous Yixian 
Formation in Beipiao, Liaoning Province, China. Here, the 
specimen is described and a cladistic analysis is 
performed in order to find its phylogenetic relationships. 
The result shows that this specimen represents a new genus 
of Psittacosauridae, Hongshanosaurus houi, gen. et sp. 
nov., and confirms the monophyletic status for Ceratopsia 
and Marginocephalia. However, Heterodontosaurus is found 
to be the sister taxon to Marginocephalia, rather than a 
basal Ornithopoda.

For a picture of the skull, see the Sinofossa Institute 
webpage:
http://www3.sympatico.ca/sinofossa/