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In a message dated 6/13/01 12:01:05 PM EST, firstname.lastname@example.org writes:
<< If I remember right, James A. Jensen found a Brachiosaurus which was
named Brachiosaurus macintoshi in Dry Mesa. What are the differences between
this specimen and Brachiosaurus altithorax? >>
This was Ultrasauros macintoshi, not Brachiosaurus macintoshi, and it is now
a junior subjective synonym of Supersaurus vivianae, because the type
specimen of U. macintoshi was discovered to belong to the same individual
dinosaur as the type specimen of S. vivianae.
The Dry Mesa brachiosaur is presently referred to as Brachiosaurus sp. It was
once part of the hypodigm of Ultrasauros macintoshi.