Tyrannosaurus rex

[GuateGojira]

Sadly, Jack Horner is not a good source, he said that he had another T. rex named "Celeste" years ago (at the 90's) and that was "10% larger than Sue", but since then nothing has been published. In fact, this is the only information available of this specimen:

*This image is copyright of its original author

This is from the book "Tyrannosaurus rex: the tyrant king". So no, there is not a larger specimen from the part of Horner.

However, while for the moment there is not a T. rex "longer" than Sue - FMNH PR 2081, there is a heavier one. The specimen RSM P2523.8 know as "Scotty" was apparently heavier than Sue with more robust bones despite its similar length (c.12 m.). This is a picture of Scotty:

*This image is copyright of its original author

These are the known bones of this specimen:

*This image is copyright of its original author

The study of Campione et al. (2014) "Body mass estimation in non-avian bipeds using a theoretical conversion to quadruped stylopodial proportions" calculate a weight of  8,004 kg (6,000 - 10,007) for Scotty compare with Sue at 7,377 kg (5,531 - 9,224). Another study of Scott Harman from 2013, calculated a weight of 8,400 kg for Sue, this means that Scotty was heavier than that, probably around 9 tons.

An amateur investigator at DevianArt named "Franoys" made abother study with Sue and he calculated a body mass of 8,830 kg, check this image from him:

*This image is copyright of its original author

So if Sue weighed 8,839 kg, Scotty weighed more than 9 tons! From my point of view the maximum size of the Tyrannosaurus rex, for the moment, is 12.3 m long and a weight of c.9 tons. Reply