I know, let me just rephrase the question: Which Allosaurus species in the JW Allosaurus based off from?
Or did they just make a entirely fictional species of Allosaurus with no basis for some of the design choices...
I wish whoever designed these fictional cloned dinosaurs would at least give the fans more information on the
designs.
It might be because Allosaurus taxonomy is based on incomplete specimens. I'm guessing, due to it's size, it's based off of A. amplexus
"A. amplexus was named by Gregory S. Paul for giant Morrison allosaur remains, and included in his conception Saurophagus maximus (later Saurophaganax). A. amplexus was originally coined by Cope in 1878 as the type species of his new genus Epanterias, and is based on what is now AMNH 5767, parts of three vertebrae, a coracoid, and a metatarsal. Following Paul's work, this species has been accepted as a synonym of A. fragilis. A 2010 study by Paul and Kenneth Carpenter, however, indicates that Epanterias is temporally younger than the A. fragilis type specimen, so is a separate species at minimum."
But...
"The issue of synonyms is complicated by the type specimen of Allosaurus fragillis (catalogue number YPM 1930) being extremely fragmentary, consisting of a few incomplete vertebrae, limb bone fragments, rib fragments, and a tooth. Because of this, several scientists have noted that the type specimen, and thus the genus Allosaurus itself or at least the species A. fragillis, is technically a nomen dubium ("dubious name", based on a specimen too incomplete to compare to other specimens or to classify)."
https://en.wikipedia.org/wiki/Species_of_Allosaurus
So, yeah, they Frankensteined something together. It looks pretty damn cool anyway.