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RE: OLD ORNITHOMIMOSAURS




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?


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