Ornithomimosaur

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These medium sized dinosaurs, Gallimimus, are the largest of the ornithomimosaurs except for the famous Deinocheirus, an ornithomimosaur with eight foot long arms and 10 inch claws. are best known for their appearance in Jurassic Park, where they featured, as in this picture, as a stampeding herd. The name "Gallimimus" indicates the overall resemblance (mimic) of these birds to chickens ("Ostrich-like", may be a more diplomatic way to put it). The remains of these forms have been found in Upper Cretaceous strata in Mongolia.

Click here to see a Gallimimus in action (avi format 3.8 meg),