The size of Tarbosaurus Bataar

long equated to be the asian equivelant of Tyrannosaurus Rex, but was it really?

i'm begoming less clever with these entries.....

anyways, let's take a look, shall we?

First, a comparison of tyrannosaurus and Tarbosaurus skulls..

Lateral view restorations will give you a decent impression of the robusticity in vertical direction, which is the most important, though not that much the lateral strenght (only relevant for an animal that shakes or grips prey).
Here’s tarbosaurus in dorsal and lateral view, compared to T. rex.


Obviously this is an animal with a more narrow skull and lower bite force and lateral skull strenght than T. rex (considering it’s skull is barely wider than Allosaurus’). However that alone means nothing.

What I find strange though is that despite this, it is described as having mediolaterally thickened teeth, similar To T. rex. This would imply it had a similar tooth design but a weaker bite, which would indeed be disadvantageous. However its dentition also displays differences, such as more and lower, anteroposteriorly longer teeth, so I’m not sure about it.

The largest tarbosaurus skul(PIN-511) measured  1,35m, whilst the skull of "sue" measured just about 1.5m. The median skull size for tyrannosaurs is roughly ~1.4-1.45 meters.

Just from this alone, the largest Tarbosaur individuals are smaller then the largest and average tyrannosaurus specimens.

But, a tyrannosaur with a 1.35 meter long skull would be ~11 meters in length

Tyrannosaurus adheres to the 1:8 ratio, so it would appear tarbosaurus would just as well. 1.35 meters = 4.43 feet.

simple math really; 4.43 x 8 yields~ 35.44 feet, so the 11 meter estimate would stick perfectly for PIN-511. A tyrannosaurus rex individual of that length - stan in particular - weighed in the ballpark of 4.5/5 tons.

Tarbosaurus only appears to be marginally more gracile then tyrannosaurus rex, so a weight estimate of 3.5 - 4.5 tons would stick quite probably.

Smaller individuals have a 1.12 meter(3.67 feet) in length, and this appears to be the median for Tarbosaur individuals unearthed thus far.

3.67 x 8 yields ~ 30 feet(29.7 to be exact, but rounding seemed justified.) This would be in the realm of a tyrannosaurus of the likes of "Bucky" and "black beauty" which weighed around 4/ 5 tons respectively. So, downscaling reveals a mass of 3 - 3.5 tons

To put it shortly, Tarbosaurus wasn't the 12 meter, 6 ton Asian Tyrannosaurus Rex, it was indeed smaller and in smaller instances, on par with the largest Daspletosaurus specimens, still an animal you would definetly not want to run into in a dark alley.