Tylosaurus (from the ancient Greek τυλος (tylos) "protuberance, knob" + Greek σαυρος (sauros) "lizard") was a mosasaur, a large, predatory marine reptile closely related to modern monitor lizards and to snakes, from the Late Cretaceous.
It is about humans attempting to colonize a new island,simply called Site C.The millions of local dinosaurs are sent in thousands to thousands of ships.But they eventually escape and migrate to the mainland,only to find earth populated by humans with barely any wild areas.To avenge nature, the dinosaurs wreck havoc all over the world.It's up to Dr.Grant to use the military to not kill the dinosaurs and instead send them back to Site C while other characters are caught crossfire during the chaos.