Updated May 8, 2019 | Infoplease Staff
|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.
Here are the facts and trivia that people are buzzing about.