Size comparison between ARK Giganotosaurus (45 m) and Giganotosaurus in real life (12 m). While it may appear absolutely ridiculous, this diagram should be accurate with only a minimal margin of error. :
What is the size comparison between Ark: Survival Evolved's creatures and their real life counterparts? (at least for the popular ones like Tyrannosaurus, Spinosaurus, Giganotosaurus etc.) - Quora
Ark: Survival Evolved's Giganotosaurus can chomp walls | PC Gamer
Mod:Primal Fear/Alpha Giganotosaurus - ARK: Survival Evolved Wiki