Re: Brachiosaur Defense

[Dinogeorge@aol.com]

In a message dated 1/26/00 9:14:46 PM EST, NJPharris@aol.com writes:

<< Ultrasauros (the North American one) is an extra-big 
 Brachiosaurus. >>

No, it's been shown to be based on part of the Supersaurus specimen from the 
same quarry, so it's a synonym of Supersaurus. There is an extra-big 
brachiosaur in the quarry, too, but it's most likely just B. altithorax. Some 
of its pieces were referred to Ultrasauros in constructing the Ultrasauros 
hypodigm; that's why Ultrasauros was thought to be a brachiosaurid for a 
while.