Meaning “ancient bird mimic”, Archaeornithomimus was a species of ornithomimid dinosaur that lived in China during the late Cretaceous period around 70 million years ago. Discovered in 1923 by Roy Chapman Andrews during an expedition, it was originally described under the name Ornithomimus asiaticus until it was later placed into it’s own genus by Dale Russel in 1972.
In one of the news articles on the Jurassic World website, one slide talks about how you can go around Isla Nublar faster than you can say Archaeornithomimus. Despite this, it has not been confirmed whether or not the animal will actually be seen in the movie. It will most likely not be in the movie, as it is not mentioned anywhere in any of the merchandise, nor is it on the official species roster.