Monday, 10 February 2014

My old article from BDW on Huaxiagnathus

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Triceratops by Beri


Mesozoic Mosaic pg #3
Huaxiagnathus orientalis  by Beri Illustration of a new compsognathid, Huaxiagnathus orientalis - by Beri (graphite), Copyright © 1999-2004 BERI
Feb 2004 (updated)

Huaxiagnathus orientalis - a large compsognathid from Early Cretaceous of China
The paper was published in March, 2004 in the new Journal of Systematic Paleontology (The British National History Museum):
- Sunny H. Hwang, Mark A. Norell, Ji Qiang, Gao Keqin, 2004, A LARGE
COMPSOGNATHID FROM THE EARLY CRETACEOUS YIXIAN, FORMATION OF CHINA.
Journal of Systematic Palaeontology Volume 2 (Issue 01), 13-30.

It describes a new compsognathid, Huaxiagnathus orientalis, ( new genus and species) known from a nearly complete skeleton lacking only the distal end of the tail. At the first glance, the skull is very similar to the still unnamed new German compsognathid. Rather short forelimb has three fingers.

In the paper "Huaxiasaurus" specimen is reffered to Huaxiagnathus. Supplementary information is included and has 17 new characters added to the Theropod Working Group Matrix, and several new taxa coded in it (Shenzhousaurus, Archaeornithomimus, Ornithomimus, Anserimimus, Huaxiagnathus, Sinosauropteryx, Compsognathus, IGM 100/44).  The topology has compsognathids (Huaxiagnathus, Sinosauropteryx, Compsognathus) as maniraptorans more derived than Ornitholestes.  
Early Cretaceous, People's Republic of China, Yixian Formation, Liaoning, Yehol Group sediments.
Approximate length: 130-145cm
Pronounciation: hua-xia-NA-thus
Holotype photograph from the paper



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A note (Feb 2014):

My original restoration of the theropod was done prior to the publication of the paper, based on the photographs available at the time on the www.



Mimi

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