extinctmods | Dinosaurs

Listed here are the genera of dinosaurs that have been discovered in Jurassic Park so far. The descriptions on this page are not very detailed, so if you want to know more you might need to check the Jurassic Park Wiki or Wikipedia.
If there's still a question about how one of these dinosaurs would logically behave in-game, go to the comments and we'll get back to you as soon as possible!

Tyrannosaurus Rex "T.rex" [Carnivore]
Number of adults in the Park: 2
Approx. number of juveniles in the Park: 1
12 meters long, 5 meters tall and weighing 7 tons, these are some of the largest carnivores to find on the island as of now. Tyrannosaurs have very very strong jaws so you really don't want to end up between their teeth. Their roar is incredible loud. They can run 32 miles per hour and once they have set their eyes on a prey, they are very persistent chasing it. You might have chances to escape them by staying completely still - it is not confirmed, but it's believed that they cannot see you if you don't move.
The T.rexes do not tend to leave their territory without reason and fiercely protect their nest and young.

Velociraptor "Raptor" [Carnivore]
Number of adults in the Park: 8
Approx. number of juveniles in the Park: unknown
Even though the T.rexes are big and dangerous, these are the predators you really do not want to get in contact with. Luckily, they are contained in the raptor holding pen for now and can't yet escape.
They're around as tall as an adult human, but don't let the comparatively small size fool you. Raptors are incredibly smart pack hunters - they communicate with each other and are able to solve problems like open doors. You may be able to escape one sole raptor, but the chances of them hunting alone are incredible low. They attack from the sides when you don't expect it and cut people open with the long claw on their feet. Be careful when they are loose.

Triceratops "Trike" [Herbivore]
Number of adults in the Park: 8
Approx. number of juveniles in the Park: 3
Triceratops are 3 meters tall, 10 meters long and weigh 8 tons. They move in groups and while their horns are fearsome, they only attack to defend themselves. T.rexes like to hunt them, but they are strong defensive fighters and don't make it easy for predators. If you can manage to seem harmless, it's possible to interact with them.
The Triceratops in the Park form two groups of 4 animals each. If a group of more than six animals gets together, it is not uncommon for the males to brutally fight for dominance.

Stegosaurus "Stego" [Herbivore]
Number of adults in the Park: 4
Approx. number of juveniles in the Park: 2
Stegos are 4 meters tall and 10 meters long and are generally believed to be the dumbest dinosaurs. The stegos in the park move together as one herd. They move circularly through the park, on a fixed route that takes them a week until they get back to the starting point.
While they are capable of defending themselves if in danger, stegos are normally easily chased away by throwing things. It seems to be too much effort to them to defend themselves from something that does not put them in mortal danger - they rather move away and do something else. They are gentle in nature.

Brachiosaurus "Brachio" [Herbivore]
Number of adults in the Park: 17
Approx. number of juveniles in the Park: 8
Doubtlessly the largest animals in the Park up to this date, the adult brachios reach a height of almost 20 meters with their heads held up. They are around 27 meters long. They communicate with hooting sounds and will respond to human imitations of those.
They move in herds and won't attack humans - however, with their powerful long tails they can become very dangerous. For that reason T.rexes know not to get in the way of healthy adult specimens.

Dilophosaurus "Dilo" [Carnivore]
Number of adults in the Park: 7
Approx. number of juveniles in the Park: 2
Dilos are around 3 meters tall and they are poisonous. They hunt by spitting a blinding, acid-like venom at their prey. They can spit very far, making up for the disadvantage of their weak jaws that have a hard time causing fatal injuries. Once a victim is blinded and cannot struggle much anymore, dilos rip it open completely.
The calls of these dinosaurs sound like owl calls. Usually they hunt in small packs. The younger specimens have impressive neck frills that they use to intimidate prey and attackers alike. Adult animals have no need for that anymore because of their full size, so the frill degenerates.

Comsognathus "Compy" [Carnivore]
Number of adults in the Park: 49
Approx. number of juveniles in the Park: unknown
Small scavengers that only reach a size of 30 centimeters. Their bites are slightly poisonous and cause swellings alike to allergic reactions. Compys are persistent little creatures that move around in large groups. They do not attack healthy animals and instead feed off left-over carcasses from other predators or attack already weakened prey and small children.

Pteranodon "Ptero" [Piscivore]
Number of adults in the Park: 6
Approx. number of juveniles in the Park: 8
Luckily, these flying dinosaurs are currently contained in the aviary and do not move freely through the Park. They are 2 meters high and their wings can spread to a wingspan of 9 or 10 meters. Pteranodons attack everything that enters their territory immediately. Smaller prey is taken to their nest and then eaten.

Mosasaurus [Carnivore]
Number of adults in the ocean: unknown
Approx. number of juveniles in the ocean: unknown
Mosasauruses are the main problem with getting off the island over the water. They are 15 meters long and very, very violent, attacking and eating everything that attempts to cross the water. Better not risk getting between their teeth and stay on dry land.

Parasaurolophus "Parasaur" [Herbivore]
Number of adults in the Park: 14
Approx. number of juveniles in the Park: 5
These herbivores usually stay close to sources of water. Often they like to mingle with other herbivores to be safer from enemies. Still, with a height of almost 4 and a length of 10 meters they are pretty impressive by themselves.

Pachycephalosaurus "Pachy" [Herbivore]
Number of adults in the Park: 20
Approx. number of juveniles in the Park: 6
Pachys are a little bit smaller than the Parasaurs and their distinguishing feature is their thick round head. They usually move in large herds and behave rather cow-like but when they are disturbed they won't hesitate to use their heads and ram into any intruder. They have bad breath.

Ankylosaurus "Anky" [Herbivore]
Number of adults in the Park: 8
Approx. number of juveniles in the Park: 2
Ankys are one of the herbivore kinds that are best suited to defend themselves. Not even T.rexes like to hunt them. Their bodies are heavily armored and on the end of their tail there is a heavy club that becomes a powerful weapon when used in combat.

Maiasaura "Maia" [Herbivore]
Number of adults in the Park: 14
Approx. number of juveniles in the Park: 18
Maiasaura are famous as the 'good mother lizard', the first dinosaur genera with a fossil record that proves dinosaurs did indeed take good care of their young. The real life version is 9 meters long and generally friendly. Like the T.rex, Maias are assumed to only be able to see moving objects. Stand still and the Maia will think you don't exist and eventually forget you were ever there.
Generally you don't have to fear these herbivores - unless you take their eggs or children. In that event, running for your life might not be enough.

Spinosaurus "Spino" [Carnivore]
Number of adults in the Park: 0
Approx. number of juveniles in the Park: 0
Spinosaurus, even larger than a T.rex, is the largest known carnivorous dinosaur of all.
It's not yet anywhere around the park, but once it gets introduced to the game, it will spice things up quite a bit.

Looking for another dinosaur not on this list?
It's probably in the park anyway or will be introduced later in the game!
Please leave a comment here specifying the kind of dinosaur you'd like to see around and you'll soon be notified that either
the dinosaur is already around (in which case it will be added to this list)
or
that we're keeping your wish in mind for new dinosaur introductions!