RE: Largest Dinosaur?

["R. Irmis" <rbi@dana.ucc.nau.edu>]

<<I think he does synonymize it in a different article in the same volume.>>

In the article "Jurassic Dinosaurs of New Mexico" by Lucas and Heckert it
says:

"Several sites in the San Ysidro area of Sandoval County in north-central
New Mexico yield the sauropods Camarasaus supremus, Diplodocus carnegiei and
Diplodocus(=Seismosaurus) hallorum (Rigby, 1982; Gillette, 1991, 1994; Hunt
and Lucas, 1993).  All of these sites are in the upper part of the Brushy
Basin Member (Fig. 2). The most notorious of these dinosaurs is Diplodocus
hallorum (Gillette), previously misrepresented as (1) a new genus,
Seismosaurus, but clearly not distinct from Diplodocus (B. Curtice, pers.
comm., 2000); (2) an animal 39-52 m long, with 46 m the "reasonable
estimate" (Gillette, 1994, p. 186), but, when the bones are isometrically
scaled, the animal was only 33 m long (Paul, 1988, 1994); and (3) an animal
with an extensive "crop" of gastroliths, which are actually hydraulically
concentrated cobbles washed among the bones of the skeleton (Lucas, 2000)."

I don't know whether this is considered a formal synonymization or not.

Regards,
Randall Irmis