(pronounced buh-LAH-toh-SAWR-ee-ah) Bullatosauria meaning inflated lizard) were a group of advanced theropods (bipedal, intelligent, meat-eating dinosaurs) from the late Cretaceous period . Bullatosaurs include Troödontids and Ornithomimids. 
Bullatosauria The name means, “inflated lizards” from Latin bullatus, “inflated” or bulla, “hollow swelling”. It is believed to have existed in the Late Cretaceous period.