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Re: Jane The juvy T. rex

I attended Paleofest at Burpee a couple of years ago, where I purchased a dandy replica of one of Jane's teeth, complete with root, molded with matrix. It looks like bonded bronze.

Below are my comparisons of this Jane replica with a replica of a large _Tyrannosaurus rex_ tooth with a complete root. All measurements are approximate. The two "diameter" quantities for each tooth were measured at the widest points.

Jane:   10.0cm x 2.0cm x 1.3cm; 20 serrations per cm
Other: 27.0cm x 5.5cm x 3.0cm; 15 serrations per cm

I would say that Jane's tooth looks very tyrannosaurid to me, though a bit more angular in cross section. I'm sure we'll learn a thing or two about _Tyrannosaurus_ ontogeny from this beautiful specimen.

And if you just can't WFTFP, see the illustration of Jane's skeleton at http://www.visitjane.com/media/janeskel.pdf . It is intended for children to color, but it should be generally correct.

"Dino Guy" Ralph W. Miller III
Docent at the California Academy of Sciences
proud member of the Society of Vertebrate Paleontology

Paleophilosophy 101:
"Some see a specimen that is half reconstructed; others see a specimen that is half genuine!"