Styracosaurus

Styracosaurus was not planned to be a featured dinosaur in the original Jurassic Park on Isla Nublar, and no populations were reported by InGen on either Nublar or their Site B facility on Isla Sorna in 1996. The species appears to have been present in Jurassic World on Isla Nublar and, as of 2018, it has been revealed that the island's Styracosaurus population was the victim of an unconfirmed form of cruelty.