Table 6. Body mass (all segments) and center of mass (COM) values shown for the five tyrannosaur specimens.

Specimen	Min mass (kg)	COMx (m)	COMy (m)	Max mass (kg)	COMx (m)	COMy (m)	Average mass (kg)	Mass range
Carnegie	7394	0.549	−0.332	14564	0.376	−0.347	9081	1.97
Sue	9502	0.801	−0.355	18489	0.572	−0.356	13996	1.95
Stan	5934	0.524	−0.495	10837	0.504	−0.521	8385	1.83
MOR	5777	0.572	−0.337	10768	0.386	−0.387	8272	1.86
Jane	639	0.276	−0.318	1269	0.242	−0.307	954	1.98

Shown are COM positions (relative to the right hip joint; cranial  =  +x; ventral  =  −y) for our minimal (“Min”) and maximal (“Max”) models, with averages of minimal and maximal model body masses as well as the ratio of maximal to minimal masses (“Mass range”).