One theory was that the Spinosaurus had different territory than the T-rex family in "Lost World." That theory falls apart in some ways when we consider the Spino fights (and kills) a T-rex in "JP3." ...

spinosaurus. After Jurassic Park and The Lost World: Jurassic Park prominently featured both Tyrannosaurus rex and several velociraptors as the main dinosaur antagonists, Jurassic Park III ...

Since its discovery in 1915, the biology and behaviour of the enormous Spinosaurus has puzzled palaeontologists worldwide. It was recently argued that the dinosaur was largely an aquatic predator, ...