Tyrannosaurus rex

[Verdugo]

How hard could a T-rex bite?
Cost et al (2019) has a new BF estimates for Stan the T-rex. One of the most rigorous BF studies i have seen:

Quote:Bite forces in our Tyrannosaurus model (35,365N–
63,492N) extensively overlap with the range reported by
Bates and Falkingham (2012; 18,065N–57,158N) and are
about twice the magnitude predicted by Gignac and
Erickson (2017; 8,526–34,522N). These differences between
our results and those of Gignac and Erickson (2017) are
likely due to our inclusion of pennate jaw muscles,
whereas the latter authors modeled all jaw muscles as
parallel fibered.

The values in the parentheses are supposed to be from different biting positions, anterior (incisiform?) and posterior (molariform?) respectively. The posterior BF of T-rex is about 6500 kg of force for those who are not familiar with Newtons. Imagine having a bull 6.5 tonnes African elephant with railroad spikes stuck to its butt sitting on something.

The value here is supposed to be Static/Sustained BF, the Impact/Snapping BF of T-rex when it slams its jaw onto something is probably even higher. Reply