While I'm surprised I haven't encountered them sooner, I'd rather them just vanish all-together. Ceratosaurus is as ruthless as they are quick. While not the most damaging carnivores you'll encounter, they are certainly some of the most persistent. I've seen these creatures even exhibit a sort of... stalking behavior unlike anything else I've seen on The Island. While they may not make themselves known to you immediately, they certainly know where YOU are.
Domesticated
The spines on Ceratosaurus have a very unique and powerful trait: Venom! This hemotoxin has the bizarre reaction with blood, making it incredibly nutritious to Carnivores. The more intense the venom infection, the more nutritious the blood becomes. I've witnessed tribes that have managed to tame these beasts use it to great effect against larger threats, and even the Island's guardians! Perhaps this desire to devour envenomed prey can be used against them...?
„
Behavior
This medium sized carnivore does not act like one. Brutal and efficient with their attacks, Ceratosaurus can be seen attacking anything from Argentavis to even Rexes. They are very fast and rush their targets, though their trumpeting roars and gnashing can be heard from a mile away.
Type in values of a wild creature to see on which stats it's emphasized. Green values on a high-level creature are very good for breeding. If you have already tamed your creature you can try to recover the breeding stats with an external tool.[2]
Ceratosaurus
The stat-calculator does not work in the mobile-view, see here for alternatives: Apps
Note that after the creature is tamed it gets bonuses on some stats depending on the taming effectiveness. This makes it hard to retrieve the levels on a tamed creature, so this tool is only for wild ones, but gives a first impression, how well the stats are distributed.
If the rider aims with the camera at the sides or at the back of the mount and attacks the Ceratosaurus will turn to that direction and bites, needs at least 90° degrees.
Can be used every 0.45s by both a rider and the AI.
Wild Ceratosaurus can apply this debuff without any cooldown between effects, tamed version has 8 seconds of cooldown between debuff applications.
If the Ceratosaurus is tamed, it will also share the healing effect with other tamed carnivores nearby.
Acceleration
When the Ceratosaurus is running, it gains more speed the longer it runs, a speed bar will appear indicating the current and the maximum possible speed. Once reaching at least 75% of the sprinting limit speed, the Ceratosaurus will destroy any tree and rock that it collides with and can perform a more powerful Horn Thrust attack. If it stops, the accumulated speed will be lost and it needs to start again.
Damage Reflection
The Ceratosaurus applies Envenomed and returns 7% of the Damage received back to its aggressor.
Combat
General
Strategy
Weaponry
Dangers
Weakness
Using long-range weaponry is useful in avoiding them using bleed attacks, however, be wary of their speed once they target you. Using a creature with good knockback on attacks is also effective, allowing you to avoid most bleed attacks if the Cerato is kept at bay.
Taming
Taming Method
Taming a Ceratosaurus involves a relatively simple taming process, but requires your character to be level 75. You will need to hunt wild Ceratosaurus in order to obtain their Venom Spines. These are used to craft a Hemogoblin Cocktail, which are restricted to an engram unlocked at level 75.
Once you have located a Ceratosaurus of your choice, you will need to feed one of your tames the cocktail, which will give it a status effect that will attract wild Ceratosaurus for 300 seconds (5 minutes). When the Ceratosaurus attacks the creature with the status effect, it will slowly become "blood-drunk" over time, so long as it keeps attacking the creature affected by the cocktail. As it becomes more blood drunk, its attack speed will slow down, but as long as it's constantly attacking, progression should remain consistent. Higher-level Ceratosaurus will require at least 2 or 3 cocktails.
Once it has become totally drunk, they will slowly wander around passively and you can then begin to passive feed them. It will generally accept food about once a minute without needing to wait for its food to drop to 90% for additional feedings. They only stay drunk for about 10 minutes before they become active again, requiring another round of cocktails to make them drunk again. With this in mind, try to feed them the moment they're ready to eat to minimize the required feeding cycles.
It is recommended to use tames that have a lot of health and equip them with high-quality saddles. Creatures with natural damage reduction such as Stegosaurus are recommended. If you have access, a Rock Elemental is quite sturdy and resists knockback so it's exceptional for this role. If needed, having a Daeodon on standby reduces any risks of losing your tame.
Using a trap is not practical as the Cerato will not attack consistently. Clearing the area should be enough, but having a tribemate around to deal with wandering threats will give you some peace of mind.
Utility
Roles
Fight Healer: The Ceratosaurus' "blood explosion" heals allied carnivorous creatures based on the amount of hits that the Cerato does and receives, and the total Health that the target has.
Big Fights Healer: On massive fights (Mainly PvP) the Ceratosaurus can be useful to heal common carnivores like Rexes or Giganotosaurus. (Level up Health)
Boss Healer: This mechanic also work on bosses, so the Ceratosaurus can be valuable as supports during the boss fights and can replace the Daeodon on certain situations if all the army is carnivore. (Level up Health and Damage)
Combatant: The Ceratosaurus has decent base stats for a mid-size creature and a good attack speed. (level up Health and Damage)
Extraordinary Egg Producer: The Ceratosaurus is one of only creatures aside from the Yutyrannus that produces eggs of extraordinary quality without any special conditions (wyvern eggs, Golden Hesperornis eggs, etc.). They are smaller than the Yutyrannus, allowing several of them to fit in a more enclosed space.
For information pertaining specifically to the real-world Ceratosaurus, see the relevant Wikipedia article.
Ceratosaurus punctura roughly translates to "pricking horned lizard".
Ceratosaurus is the second creature originating from a mod to be added to the game, the first being Fenrir from Fjordur.
Ceratosaurus is also the first creature originating from a mod to not be added in a DLC (as free maps are technically DLC).
Ceratosaurus' design, "default"/dossier color scheme, and abilities may have been inspired by (and also a reference to) the monster Espinas from the Monster Hunter franchise. Espinas is a large wyvern with green scales and red thorn-like spikes. It is known for spitting fireballs laced with poison and relentlessly charging at hunters.
Ceratosaurus's eyes are reminiscent to that of a Tokay Gecko.
With its build-up speed, the Ceratosaurus is currently the fastest creature in ASA, beating the Gallimimus.
The Cerato's roars are actually the same ones as the Tarbosaurus from Jurassic World: Camp Cretaceous. This makes it the only creature in Ark to so far have the roars and sounds from the Jurassic franchise so far.
Yes 
Artwork by Garuga123 on February 5th, 2022.
Health
Stamina
Oxygen
Food
Weight
Melee Damage
Movement Speed
Torpidity
Envenomed
Envenomed debuff:
Health stat.
Damage received back to its aggressor.
Hemogoblin Cocktail, which are restricted to an engram unlocked at level 75.
Stegosaurus are recommended. If you have access, a Rock Elemental is quite sturdy and resists knockback so it's exceptional for this role. If needed, having a Daeodon on standby reduces any risks of losing your tame.
Rexes or 
Giganotosaurus. (Level up Health)
Daeodon on certain situations if all the army is carnivore. (Level up Health and Damage)
Fenrir from Fjordur.
Gallimimus.
ARK: Survival Ascended Changes
Food when deployed from a 
Cryopod.
