Pachyrhinosaurus Dossier


Common Name Pachyrhinosaurus
Group Dinosaurs
Species Pachyrhinosaurus mitisaura
Time Late Cretaceous
Diet Herbivore
Temperament Evasive
PC Release Date November 24, 2016 (v252.0)
Xbox Release Date Not Yet Released
Tameable Yes
Rideable Yes

Pachyrhinosaurus Mitisaura is a medium-sized herbivore, found almost everywhere but the island's mountains. It is generally calm, and ignores all other nearby creatures unless it is attacked, at which point it usually tries to flee.

Of the Island's varied creatures, Pachyrhinosaurus may posses among the most unique survival skills. When threatened, its massive nasal boss releases a chemical into the air that calms other nearby creatures, making them less likely to attack it. Affected creatures are sometimes hungry enough to ignore the effect and humans seem to be immune to it. Conversely, it can seemingly invert this phenomenon at will and induce creatures to become more aggressive towards it.


Pachyrhinosaurus is an excellent starting mount for anyone new to taming. It is fairly easy to train, can carry enough to be a simple pack-animal, and is not as deadly as some of the larger herbivores. Additionally, Pachyrhinosaurus can release its unique chemical on command to protect itself and its rider from nearby predators, or draw attention if desired, making it a potential life saver in a pinch.

— The Dossier

The Pachyrhinosaurus is a medium sized herbivorous dinosaur found on the Ark.

Wikipedia has a more detailed and comprehensive article on Pachyrhinosaurus




Like its larger relative the Triceratops, the Pachyrhinosaurus is a burly quadrupedal herbivore with an impressive frill. Unlike the Triceratops, Pachyrhinosaurus has a bony growth called a boss where the trike has its nasal horn. The animal still displays a multitude of horns and spikes on its frill, though none as large or fearsome looking as those on a Triceratops.







  • The dossier was revealed on September 29, 2015.
  • Pachyrhinosaurus is a main protagonist in Walking with Dinosaurs (2013) movie.

Trivia not relevant for the game

  • Its full name means "Thick-nosed lizard".
  • Pachyrhinosaurus is from the same family as Triceratops.
  • Real Pachyrhinosaurus was approximately 8 metres long (slightly below the in-game animal's 8.25 meters) and weighted around four tonnes, with a pattern of horns that's much less elaborate than the one illustrated in the dossier. It also didn't release chemicals in self-defense, instead charging the enemy, much like its better known cousin did, or the Pachycephalosaurus.


Gameplay Images



Patch 252 Achatina, Megalosaurus, Moschops, Pachyrhinosaurus, New Caves and more!

Patch 252 Achatina, Megalosaurus, Moschops, Pachyrhinosaurus, New Caves and more!