According to Jurassic World: Fallen Kingdom's viral website, Dinosaur Protection Group, InGen illegally cloned dinosaurs - presumably including the Spinosaurus - and released them on Isla Sorna in 1999, which noticeably disrupted the ecosystem. Grant is deceived into landing on Isla Sorna - InGen's Site B, a second island that was used to breed dinosaurs before transferring them to the main island, Isla Nublar - where he and others came into contact with the Spinosaurus. One of the things that seems to have been made canon again is the existence of the Spinosaurus. Part of that meant de-canonizing The Lost World: Jurassic Park and Jurassic Park 3 however, events from both films have slowly started to trickle back into continuity through supplemental material.
Reviving and rebranding the Jurassic Park franchise with Jurassic World was a smart decision by Universal Pictures and it's led to a resurgence in interest in Michael Crichton's world. Jurassic World was trying to bring back the Spinosaurus from Jurassic Park 3 shortly before the park was destroyed. Wu was trying to bring back the Spinosaurus from Jurassic Park 3 before the park was destroyed. Jurassic World: Camp Cretaceous reveals Dr.
