RE: OLD ORNITHOMIMOSAURS

["Timothy Williams" <twilliams_alpha@hotmail.com>]

Tom Holtz wrote:

> The type of _Shuvosaurus_ is from a much smaller animal than 
> _Gorjirasaurus_
> (although it could be from a  juvenile, I suppose) and they are from
> different, although roughly contemporary, units: _Gojirasaurus_ from >the 
> Bull Canyon Formation of the Chinle Group (or Bull Canyon Member >of the 
> Chinle Formation: choose your stratigraphic nomenclature...) >of New 
> Mexico, while _Shuvosaurus_ is from the Dockum of Texas.

Apparently the premaxilla of an ADULT _Shuvosaurus_  was found in the same 
quarry that produced _Gojirasaurus_:

http://www.cmnh.org/fun/dinosaur-archive/2000Apr/msg00602.html

While on the topic, what IS the preferred nomenclature for the Chinle Group 
/ Formation and the Dockum Group / Formation?  Anyone?


Tim
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