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Stygimoloch ("demon from the river Styx") is a dubious genus of the pachycephalosaur family living in the Late Cretaceous period. It was distinguished from other pachycephalosaurs by the row of spikes on the back of its head, behind the dome characteristic of the family. Jack Horner has presented evidence in 2009 (and others after him) that suggests that Stygimoloch might be the juvenile form of Pachycephalosaurus.
Name meaning Demon/Devil of/from the river Styx/hell or Styx demon/devil Code name Stygi Stiggy Diet Herbivore Height 1 meter (3 feet) Length 6-10 feet (2-3 meters) long Weight 170 pounds (78 kilograms) Location Montana and Wyoming, USA Range Isla Nublar California Birth type Egg Movie appearances Jurassic World: Fallen Kingdom Jurassic World: Dominion Notable Game appearances Warpath: Jurassic Park Jurassic Park III: Park Builder Jurassic World: Alive Jurassic World: The Game Jurassic World: Evolution
