Oxalia is the dinosaur that you would have never heard of before, right? Eh! This dinosaur was in the family, in which Spinosaurus was there, that means it was a Spinosaurid dinosaur. It was just like the Spinosaurus , it had a sail in it’s back(but only of 3 feet, whereas our Spinosaurus had a sail of 5 feet!), it had a crocodile like head and also ate the same kind of prey, that means it ate fishes, shark, crocodilians, tortoises and even some other dinosaurs.