Size comparisons

[DinoFan83]

Here's a 'triple' size comparison of Tyrannosaurus and Giganotosaurus - minimum, average, and maximum size, in that order.
On top is USNM 6183 (99 cm femur, based on LACM 23845, probably >3.5 tonnes) vs MUCPv-Ch1 (12.32 meters TL, 7.53 tonnes).
In the middle is the mean size of all Tyrannosaurus specimens (120 cm femur, based on MOR 555, 6 tonnes) vs the mean of both Giganotosaurus specimen (12.83 meters TL, 8.51 tonnes).
On the bottom is Sue (12.3 meters TL, 8.4 tonnes) vs MUCPv-95 (13.3 meters TL, 9.48 tonnes). 
Skeletals are by Franoys (USNM), Randomdinos (MOR base), Hartman (Sue), and GetAwayTrike (Giganotosaurus).

*This image is copyright of its original author

Take note that even with the much less sample size (14x less), Giganotosaurus is obviously the much larger of the 2, outweighing the largest Tyrannosaurus specimens by well over a tonne at maximum, 2.5 tonnes on average, and over 4 tonnes at lower sizes. Reply