The “chicken mimic” was discovered in the early 1970s in the Gobi Desert of Mongolia and described in 1972 by Halszka Osmólska, Ewa Roniewicz, and Rinchen Barsbold.
Gallimimus lived during the Late Cretaceous about 71 to 68 million years ago. Up to 6 meters (20ft) in length, 2 meters (6.6ft) in height at the hips and 1000 pounds (454kg) in weight.
Gallimimus was found on Isla Nublar as one of InGen’s cloned species. Dr. Alan Grant, Lex and Tim Murphy encounter a herd of the animals which proceeded to stampede in their direction. They ran and sought shelter from them and witnessed the female Tyrannosaur ambush and kill one for a meal.