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At 01:33 PM 5/13/99 +0000, Neil Clark wrote:
>Is *Tatisaurus* considered to be a stegosaur related to
>Huayangosaurus as Dong (1990) suggests in his paper in *Dinosaur
>Systematics* edited by Carpenter and Currie? He doesn't seem to
>consider that it may be a primitive thyreophoran related to
>Scelidosaurus. This surprises me considering it comes from the
>Lufeng Formation (Lower Jurassic) of China.
In 1996 Spencer Lucas synonymized _Scelidosaurus_ and _Tatisaurus_. Not
unreasonable: however, he did not demonstrate that the similarities were
derived rather than shared primitive thyreophoran characters, so this
synonymy is a bit weak at present.
Dave Norman is redescribing _Scelidosaurus_, and I believe he has gone to
examine the _Tatisaurus_ type material. It will be interesting to hear what
Lucas, S.G. 1996. The thyreophoran dinosaur _Scelidosaurus_ from the Lower
Jurassic Lugeng Formation, Yunnan, China. pp. 81-85, in Morales, M. (ed.),
The Continental Jurassic. Museum of Northern Arizona Bulletin 60.
Thomas R. Holtz, Jr.
Vertebrate Paleontologist Webpage: http://www.geol.umd.edu
Dept. of Geology Email:email@example.com
University of Maryland Phone:301-405-4084
College Park, MD 20742 Fax: 301-314-9661