File:B-rex teeth.jpg

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Description	Tyrannosaurus (MOR 1125, “B-rex”) teeth from the lower jaw of this medium-sized skeleton illustrate the extreme range in overall tooth size within one individual. The black scale bar is 5cm long. Above: A smaller posterior tooth from position #14 from the front of the jaw. Below: A larger tooth from position #4 in the same jaw. This demonstrates why shed dinosaur teeth are not a reliable indicator of relative skeletal size and ontogenetic age.
Date	2011
Source	http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0016574
Author	John R. Horner, Mark B. Goodwin, Nathan Myhrvold

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Tyrannosaurus

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Orientation	Normal
Horizontal resolution	300 dpi
Vertical resolution	300 dpi
Software used	Adobe Photoshop CS3 Windows
File change date and time	10:20, 13 March 2011
Colour space	sRGB

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