Okey. Lets size 'em up. Dilophosaurus and Ceratosaurus were both 23 feet long, but cerato out-wieghed its rival by 1,000 pounds. Dilophosaurus was faster and smater, but Ceratosaurus was stronger and had much larger teeth and jaws. So who would come ontop? In my opinion, Ceratosaurus.
carnotaurus was larger and slightly faster then ceratosaurus. carnotaurus had smaller teeth designed for ripping flesh while ceratosaurus had larger teeth desighned for killing prey and slicing through flesh so i would say its a draw
Allosaurus was the largest predator in its habitat, so the only formidable enemy of an adult Allosaurus would be another adult Allosaurus. For young Allosaurus, however, threats included Torvosaurus and Ceratosaurus, and even larger Allosaurus.
Allosaurs was 28 feet long and weighed between 2,200 lb and 8,800 lb, depending on the estimate you use. Ceratosaurus was about 22 feet long, and depending on the weight estimate you use, they would have been between 606 lb and 996 lb or 1,160 lb and 2,200 lb. In any case, Allosaurus was much larger than Ceratosaurus and thus was probably far stronger.
No the two animals did not contemporaneously.
I would mostly think predator wise would be ceratosaurus.
Dilophosaurus did not spit. Jurassic Park may have shown that but Jurassic Park's Dilophosaurus was completely false. When Dilophosaurus was discovered he was 20 feet long and he did not have a frill. There is no proof that he spit poison. Dilophosaurus was probably warm blooded and may have weighed 1,000 pounds.
Allosaurus was 28 to 32 feet long and weighed somewhere between 2,200 and 8,800 lb depending on whose estimate you use. Tyrannosaurus rex was 40 feet long and weighed 12,000 to 26,000 lb. Tyrannosaurus rex would almost definitely defeat and kill an Allosaurus in a fight unless the Allosaurus managed to escape. Note that they never would have encountered each other, though, because Allosaurus died out about 97 million years before Tyrannosaurus evolved.
Dilophosaurus actually was probably the top predator of its ecosystem. It did have weak jaws compared to other carnivores, but it probably hunted in packs or pair and would gradually weaken in prey with weak, but fast bites.
Allosaurus was dominant over Ceratosaurus, but Ceratosaurus would not be usual prey for Allosaurus. Carnivore almost never prey on other carnivores. It is possible though on rare occasions Allosaurus may hunt and kill a Ceratosaurus for food.
Ceratosaurus was a large meat eater, so it ate large herbivorous dinosaurs. They may have hunted dinosaurs such as Dryosaurus, Camptosaurus, Drinker, Othneila, and even Stegosaurus. They would have scavenged on dead sauropods, as well.
I believe you are thinking of Ceratosaurus. Ceratosaurus wasn't large enough to hunt adult sauropods, but could hunt young ones or scavenge on adults. Allosaurus, however, was much larger, so Ceratosaurus would have to wait for its turn if it wanted to scavenge at the same site as Allosaurus.
This fight would never happen, no matter how you look at it.