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Temporal range: Upper Cretaceous
Saurornithoides mongoliensis.jpg
Holotype skull, AMNH
Scientific classification
Kingdom: Animalia
Class: Sauropsida
Superorder: Dinosauria
Order: Saurischia
Suborder: Theropoda
Family: Troodontidae
Genus: Saurornithoides
Osborn, 1924

Saurornithoides was a fast running dinosaur from 79 million years ago. It was related to Troodon. Its fossils have been found in Mongolia and China.

Like its cousin Troodon, Saurornithoides was an intelligent predator, with large eyes and good vision. It had a retractable, sickle-shaped claw on the second claw of each foot that was used for attacking prey. Saurornithoides probably fed on small prey, such as lizards, frogs, insects, and small mammals. It may also have hunted in packs to bring down other dinosaurs. Saurornithoides was discovered in the Gobi Desert on an expedition in the 1920s. The dinosaurs Velociraptor, Protoceratops, and Oviraptor were also discovered during these expeditions to the Gobi Desert.