Gallimimus (Chicken mimic)
Halszka Osmólska, Ewa Roniewics & Rinchen Barsbold - 1972
Estimated 6 meters long
G. bullatus (type)
Mongolia - Nemegt Formation
Late Cretaceous, 70 million years ago
Gallimimus is a genus of ornithomimid theropod dinosaur that lived during the Late Cretaceous period, around 70 million years ago. Its name means “chicken mimic,” due to its bird-like appearance and swift running speed.
Gallimimus was a bipedal dinosaur with long, slender legs, an elongated neck, and a small, toothless head. It is estimated to have reached lengths of up to 6 meters (20 feet) and weighed around 440 kg (970 lbs).
Gallimimus is known for being one of the fastest dinosaurs, with estimates of its running speed ranging from 50 to 70 km/h (31 to 43 mph). It likely used this speed to outrun predators and catch prey.
Fossils of Gallimimus have been found in Mongolia, and it is considered one of the most common dinosaur genera in the Nemegt Formation. It is also notable for its appearance in the film Jurassic Park, where it is famously depicted as a herd of stampeding dinosaurs.