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Camptosaurus modernii (name meaning "modern flexible (back) lizard") is a species of social medium-sized bipedal iguanodontid dinosaur that originally lived in what is now North America during the Late Jurassic and was once extinct, but has since been brought back from extinction by SciiFii and now lives in Cretaceous Park located in Sacramento, California. It can grow to be about 23 feet long, weigh about as much as a very large white rhinoceros, and like them, they are herbivores, feeding mainly on fruits, leaves, shrubs, nuts, seeds, ferns, cycads, and horsetails. It normally lives in herds that contain up to around 15 individuals at a time, but in areas with enough food and space, Camptosaurus modernii can live in herds that can include as much as 40 individuals. Currently, SciiFii is in talks with game hunters on introducing Camptosaurus modernii into some of North American ecosystems, as long as they don't outcompete native herbivores or damage native plants.