Tyrannosaurus rex

[johnny rex]

(10-18-2020, 07:48 AM)DinoFan83 Wrote:

Quote:Hutchinson did said the torso is inflated due to the distortion of the vertebrae. But I didn't remember the weight is downgraded (maybe except by Gregory S Paul and some others).

I'm not fully sure what you mean when you say this - do you want to know exactly how doing things like sweeping back the ribs and increasing spine curvature decreases torso volume, or do you want to know cases where the weight has been corrected downward by other researchers rigorously aside from Greg Paul's comment? If the latter, it's simply because no one has bothered to do so in the literature yet, instead choosing to do their own models of the skeletons.
But if you meant something else, don't hesitate to let me know.

Quote:Then, you came up with your own opinion with calculations that the Tyrannosaurus rexes are actually weigh less than 8 tonnes. How did you got charcharodontosaurids are much heavier than these tyrannosaurs? By your own calculations again?

Both the tyrannosaurids and carcharodontosaurid models are weighed with the same overall method (volumetric) - be that water-dunk models, laser scan of a mounted skeleton corrected later on, or a computer model of a skeletal (graphic double integration). Any increase and decrease in the weights was simply due to changing things about some segments in the models (eg: fixing the density and the incomplete scapula in Greg Paul's Giganotosaurus, or changing things like the rib posture in Hutchinson's Tyrannosaurus). The weight increase for carcharodontosaurids is indeed based on my own calculations (as well as the work of some others like SpinoInWonderland), but everything here bases off the same method for mass estimation. This can be considered 100% apples to apples.

Quote:Can you give me your own depiction of how a Tyrannosaurus would compare with a Giganotosaurus and a Carcharodontosaurus, maybe a picture? I wanna see that.

I don't yet have the GIMP skills to correct Greg Paul's Giganotosaurus in regards to the scapula, which is my primary reference at this point. However, once I get the chance to do so I will.

SpinoInWonderland... Hmm. I've seen him in those old forums in the past and he seems to be a fanboy of some sort. I don't think I'll take him seriously 100%.

But till then, I think I'm still with my opinion that none of them are much obviously larger than the other (like how a brown bear is obviously much larger than a tiger or a lion) until people discovered more complete specimens. Reply