The dinosaur from the third installment of Spielberg’s classic trilogy is just plain evil. While the T-Rex of the first two films seemed to be a force of nature – it was just doing what dinosaurs do- the Spinosaurus in the third movie seems to relish in the destruction it causes, and while it has no actual personality, it seems to be relentlessly aggressive, stalking the team on the island and even having time to take on a T-Rex and beating it hands down.
Just as he had for Jurassic Park & The Lost World: Jurassic Park 2, Steven Spielberg called upon the Stan Winston Studio team to design and build new dinosaurs for Jurassic Park III, as well as revamp some of those that had been featured in the previous installments.
Spinosaurus was among the largest of all known carnivorous dinosaurs, nearly as large as or even larger than Tyrannosaurus, Giganotosaurus, and Carcharodontosaurus. Estimates suggested that it was between 12.6–18 meters (41–59 ft) in length and 7 to 20.9 tonnes (7.7 to 23.0 short tons) in weight. It is known from incomplete North African fossils that date to Cenomanian times (roughly 100 to 94 million years ago). ‘Spinosaurus’ translates to “spined reptile” and was named for its “sail-back” feature, created by tall vertebral spines.