Gallimimus bullatus

† Gallimimus bullatus — a Late Cretaceous ornithomimid theropod from Mongolia's Nemegt Formation. Large ornithomimosaur (~6 m long, ~440 kg); 'chicken mimic' with a toothless beak, long legs, and small arms. Herbivorous to omnivorous. One of the best-known ornithomimids; featured in Jurassic Park .

Diet & Feeding

Herbivore

Gallimimus bullatus was a plant-eating dinosaur. Herbivores typically fed on ferns, cycads, conifers, and other vegetation available during their era. Many herbivorous dinosaurs developed specialized teeth and digestive systems for processing tough plant material.

Time Period

Cretaceous Late Mesozoic Era

Gallimimus bullatus lived during the Cretaceous Late period of the Mesozoic Era, approximately 100.5 to 66.0 million years ago.

The final age of dinosaurs, featuring iconic species like Tyrannosaurus rex, Triceratops, and Velociraptor. Dinosaurs reached their peak diversity before the catastrophic asteroid impact at the Chicxulub crater ended the Mesozoic Era.