Temporal range: Late Cretaceous
An artist's illustration of Gallimimus bullatus
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Sauropsida
Superorder: Dinosauria
Order: Saurischia
Suborder: Theropoda
Family: Ornithomimidae
Genus: Gallimimus
Osmólska, Roniewics & Barsbold, 1972
Species: G. bullatus
Binomial name
Gallimimus bullatus
Osmólska, Roniewics & Barsbold, 1972

Gallimimus bullatus(gal-IH-mime-US) was a fast, ostirich-like dinosaur, with a long, extended tail for balancing while running, and was rather intelligent by dinosaur standards. It had a long neck and large, round eyes, possibly for night vision, suggesting a nocturnal lifestyle (though there is no reason it wasn't diurnal).

The legs had powerful muscles but were slim near the feet, like the legs of all fast-running animals.

The long feathers may have been for display or to protect eggs and young.


Jurassic Park's Gallimimus

Gallimimus was found in the Gobi Desert in Mongolia in early 1963 by Professor Zofia Kielan-Jaworowska. It was named by palaeontologist Richen Barsbold in 1972, who thought it looked rather rooster-like in appearance. Most fossils have been found in Mongolia. At the time only one species of Gallimimus was known, and it was dubbed Gallimimus bullatus, because of the bulbous swelling in the brain-case resembled a bulla; a capsule which was worn by Roman youths around their necks. A second species, "Gallimimus mongoliensis" was discovered in 1996.

Gallimimus Skeleton




Cultural significance

In the Media

  • Gallimimus was shown in nearly all of the Jurassic Park films, with the exception of Jurassic Park III. In the 1st film, a herd of them was briefly seen as a stampeding herd that ran at three of the protagonists, and one was then attacked and eaten by Rexy the Tyrannosaurus rex. In the 2nd film, they were known to have resided in the southeast of Isla Sorna coexisting with other herbivores Mamenchisaurus, Parasaurolophus, and Pachycephalosaurus. Gallimimus also made up a good portion of the fauna of that region. The two adults were captured by the InGen Hunters for Peter Ludlow's Jurassic Park San Diego, but was freed the following night by Nick Van Owen and the Gatherers along with the rest of the dinosaurs held captive by the hunters. In the 4th film, they retained many characteristics of the previous clones albeit being a foot taller and having teeth which is inaccurate to the real animal and being different colors, orange with a creamy underbelly and brown stripes on the backs. The theropods lived in the self-titled Gallimimus Valley. Some of the juveniles also lived in the Gentle Giants Petting Zoo. In the 5th film, it is revealed that there are surviving Gallimimus populations on Isla Nublar, as they will now face an impending danger, alongside many other creatures, in the form of an erupting volcano. They were seen running alongside many other species away from Mount Sibo.
  • Also, in the Carnivores series, they appear as ambient creatures that run away if the player is to close.
  • They also made a few appearances in The Land Before Time film series.
  • Gallimimus appears in Jurassic World: Evolution as revealed by its' species profile. Its' design is based on the Jurassic World and Jurassic World: Fallen Kingdom variants.
  • Gallimimus is a common in Jurassic World: Alive Its' design is based on the Jurassic World and Jurassic World: Fallen Kingdom variants.
  • They are also a playable dinosaur in the game Dinosaur King.
  • It also appears as a playable dinosaur in the ROBLOX game "Era of Terror" as well as its remake, "Era of Terror: Remastered".
  • In Dino King: Journey To Fire Mountain, a lot of Gallimimus offspring are one of the dinosaurs seen in the compound, alongside Huaxiaosaurus, Nanshiungosaurus, Oviraptor, Pachycephalosaurus, Protoceratops, Ruyangosaurus, Saurolophus, Torosaurus, Tsintaosaurus, Velociraptor and Zhuchengtyrannus
  • Gallimimus appeared in the game ARK: Survival Evolved.


Gallimimus 01.jpg

It is likely that Gallimimus was a very intelligent creature, based on mass and the proportion to the brain, meaning that they were probably quite smart among most dinosaurs. It shared many features with its relatives. such as Struthiomimus and Ornithomimus. It is guessed that Gallimimus was an omnivore, similiar to the Oviraptor. Its main diet consisted of small lizards and bugs, some eggs, and some plants. Gallimimus ran on two slender legs. It's predicted to have been ostrich-like, and most likely had feathers, given that feathers were preserved in it's relatives and more massive feathered dinosaurs did exist. It had a long, flat, toothless beak, with the lower jaw being shaped like a shovel, a tool which would have probably been helpful in crunching hard materials like nuts or roots. It weighed about 970 lbs and was about 8 meters (26 feet) in length, making it one of the largest of ornithomimids. It had three claws on each arm, with three on each foot. The tail, like many other dinosaurs, was meant for balance, especially while they were running. Like other ornithomimids, it was a very fast runner, possibly capable of running up to 50 mph, which is about the same as an ostirich's top speed and over twice as fast as Olympic sprinters! Gallimimus also had large eyes, which possibly suggests that they were nocturnal dinosaurs like the Troodon.

Galimimus from Dinosaurs in the Beginning