T rex skull base corrected

I have corrected the taxonomic name on the base of this model. Binomial species names have the genus capitalized and the species name in all lower case. See article at https://en.wikipedia.org/wiki/Binomial_nomenclature.

This is a model of Tyrannosaurus rex (lower case rex). A minor point but this is being used for educational purposes and spread around in other remixes. (even one of the Thingiverse tags has this misspelling).