Re: R: "Supersaurus"

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

Carlo Godel wrote:

>   you are correct in the supersaurus business the Ultrasaurus is a 
> brachiosauris
> and the supersaurus is a diplodocid. the quarries are close to my home here 
> in Grand Junction

The _Supersaurus_ vs _Ultrasaurus_ thing is a little confusing.  This is 
based upon the work of Brian Curtice:

The dorsal vertebra that was chosen by Jim Jensen to be the holotype of 
_Ultrasaurus_ (later _Ultrasauros_) in fact belongs to _Supersaurus_. 
_Ultrasauros_ is therefore a junior synonym of _Supersaurus_.

A shoulder bone (scapulocoracoid) that was referred to _Ultrasaurus/os_ by 
Jensen does come from a brachiosaurid, probably _Brachiosaurus_ (a quite 
average-sized one at that).

Yes, they do come from the same quarry: Dry Mesa in Colorado.  Also found 
there was _Dystylosaurus_, based on a single dorsal.  This genus now has a 
shadow hanging over it.


Tim















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