Now that Jurassic World Rebirth is available to own digitally, the film’s bonus features have revealed new pieces of concept art showcasing alternate designs for the gene-spliced Mutadons: ...

"You saw it in the Jurassic World movies with the Indominus Rex. They were trying to crossbreed stuff that was bigger, scarier, freakier. That can't always have gone well.

The deformed D-rex has only been glimpsed in trailers so far, but if the six-limbed mutant T-rex brings to mind the Rancor from Star Wars or the Xenomorphs from Alien, that’s by design.