Data are the isotopic composition of structural bone carbonate (X) and the isotopic composition of the coexisting calcite cements (Y) in 18 bone samples from a specimen of the dinosaur Tyrannosaurus rex. Evidence that the mean of Y is positively associated with X was used in an argument that the metabolic rate of this dinosaur resembled warm-blooded more than cold-blooded animals.
A data frame with 18 observations on the following 2 variables.
isotopic composition of bone carbonate
isotopic composition of calcite cements
Ramsey, F.L. and Schafer, D.W. (2002). The Statistical Sleuth: A Course in Methods of Data Analysis (2nd ed), Duxbury.
Barrick, R.E. and Showers, W.J. (1994). Thermophysiology of Tyrannosaurus rex: Evidence from Oxygen Isotopes, Science 265(5169): 222–224.
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