Data frame with measurements of oxygen isotopic composition of vertebrate bone phosphate (per mil deviations from SMOW) in 12 bones of a singe Tyrannosaurus rex specimen
ex0523
A data frame with 52 observations on the following 2 variables.
oxygen isotopic composition
a factor with levels "Bone1"
,
"Bone2"
, …, "Bone12"
Barrick, R.E. and Showers, W.J. (1994). Thermophysiology of Tyrannosaurus rex: Evidence from Oxygen Isotopes, Science 265(5169): 222--224.