The Old Spinosaurus (Viejo Espinosaurio in Spain) is an elderly Spinosaurus from The Big Misty Sea in Africa. He is an experienced fishing dinosaur that has helped Buddy to learn how to fish. He has been fishing for a large fish called Chester and needs to concentrate. Due to that he has been a very cranky dinosaur. Also he mentions that he had a younger sister that her name is the same as Tiny. He doesn't like visitors especially when Don asks him to pose for his stick sculpture.