First of all, it should be pointed out that Barbarossa Dragon, sauropod Wang Longlong and Iparosaurus are famous rivals of Allosaurus, but they are by no means the only rivals. When we know the survival period of Allosaurus, it is not difficult to find dinosaurs of the same period. Allosaurus lived from 6,543.8+0.55 million years ago to 6,543.8+0.2 million years ago, that is to say, in less than 6,543.8+0 million years after the appearance of Allosaurus, the famous Kichiku All Star first Spinosaurus (Spine Back Spray) appeared. There are stegosaurus, Ankylosaurus, Iguanodon and so on. In the order of birds and buttocks, there are Sichuan dragons that look like Allosaurus and giant Diptera dinosaurs. As for the specific list, this is unlikely. The workload is too heavy.