Greg Paul wrote- > Odd that the name is Brontosaurus. I tend to agree. The type Apatosaurus is > probably not diagnostic, while Brontosaurus is based on the Yale mounted > skeleton. The holotype of Apatosaurus (YPM 1860) is diagnostic, as Upchurch et al. (2004) found it to clade with other A. ajax specimens in their specimen-level phylogenetic analysis. Mickey Mortimer