Dododex
ARK: Survival Evolved & Ascended Companion

Rate Tips
Ceratosaurus is a wonderful tame to have, and are even valid to use in boss fights so here is a a guide to help you have an easier time taming this beast. P.S. this is my favorite carnivore.
1. In order to tame this you will need ceratosaurus spines, which you get from killing and looting ceratosaurs. On official you will probably want to gather a little more than 200 (enough to get it drunk twice) if you are going for a high level. After gathering these spines you will need to combine them with narcotic and bloodpacks to make hemogoblin (yes, it’s really spelled that way in the game) cocktails, which you can unlock at lvl 60.
2. After you have however many of these you will need, (the rate of it getting blood drunk is affected by both level and taming speed modifiers), you will probably want to get extraordinary kibble. This is because if you use anything else, not only will the effectiveness be lower, but the ceratosaurus will stop being drunk around ten minutes after it gets drunk, so you will have to get it drunk more times because it is slower. However, if that’s something you are willing to do, you can tame it with mutton and prime meat.
3. Once you have the hemogoblin cocktails and the food, you will need to get a tanky tame. All you really need is something with a very good saddle, reduced damage of some form (like trikes when taking hits from the front), or a huge amount of health. A combination of all 3 is a safe bet. In order to tame these, you will first feed the hemogoblin cocktail to your Dino, and then let the ceratosaurus hit it. Make sure to clear the area first to prevent interruptions.
4. Some tips to help you tame as quickly as you can: the more hits a ceratosaurus can get on you the quicker it tames, so having a tame that won’t take huge knockback or is up against a wall will let it more continually hit you. It’s thorns also counts as a hit, so you can bite it to increase its speed of getting drunk, however be careful not to kill it. (I only recommend doing this if you have something that does barely any damage and I warn against getting it below half health just in case something else shows up). They can be picked up by rhinios so you can use one to move it to a safer spot.
Sorry this tip is so long, it’s a pretty complicated process,
Happy taming!