|  Share | Cite



Meaning of Name: “bird mimic”
Period: Cretaceous Period (138 million to 65 million years ago)
Size:3 - 3.5 meters long
Weight: 100 - 175 kg
Location: Colorado, Utah, Canada

Resembling an ostrich, this dinosaur was estimated to run at a speed of 40-50 mph.

Longest Neck:Dinosaur Hall of FameSmartest:

More on Fastest from Infoplease: