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Mass Estimate for _Camarasaurus_

I am having surprising difficulty in finding a published mass estimate
for _Camarasaurus_.  It doesn't appear in Colbert 1962, Anderson et
al. 1985, Alexander 1989 or Henderson 1999 ... which seems odd, given
that _Camarasaurus_ is by some distance the best represented sauropod.

All I can find is a line in the Appendix of Peczkis 1994, which cites
a mass estimate of "10-40 tons" from Bakker 1980, which is not as
specific as it could be.  Does anyone know of anything more specific
in the literature?  What classics am I missing here?

 _/|_    _______________________________________________________________
/o ) \/  Mike Taylor  <mike@indexdata.com>  http://www.miketaylor.org.uk
)_v__/\  "I wonder just when our thirst for the Premiership got so
         unquenchable that we'd even consider employing the likes of
         Mr. Bowyer" -- Tony Henshall.


Alexander, R. McN.  1989.  Dynamics of Dinosaurs and Other Extinct
Giants.  Columbia University Press, New York.  167 pp.

Anderson, J.F., Hall-Martin, A., and Russell, D.A., 1985.  Long-bone
circumference and weight in mammals, birds and dinosaurs: Journal of
Zoology, v. 207, p. 53-61.

Bakker, R. T.  1980.  Dinosaur heresy - dinosaur renaissance;
pp. 351-462 in R. D. K. Thomas and E. C. Olsen (eds.), A Cold Look at
the Warm-blooded Dinosaurs.  AAAS Selected Symposia Series No. 28

Colbert, Edwin H.  1962.  The weights of dinosaurs.  American Museum
Novitates, 2076, pp. 1-16.

Henderson, Donald M.  1999.  Estimating the masses and centers of mass
of extinct animals by 3-D mathematical slicing.  Paleobiology:
Vol. 25, No. 1, pp. 88-106.

Peczkis, J. (1994). Implications of body-mass estimates for dinosaurs.
J. Vert. Paleont. 14(4):520-533.