Ornithomimus was an ominovorous dinosaur that lived in the late
Cretaceous period,
about 76 to 65 million years ago.
Fossils
have been found in North America and Asia.
It was about 12 feet (3.7 meters) long. It would have held its body
parallel to the ground, balanced by its extra long tail.
Ornithomimus was a fast runner, and could probably have reached speeds of
about 30 miles per hour (50 kilometers per hour). It probably ate insects,
small reptiles, mammals, fruit, and leaves. It may also have raided the
nests of other dinosaurs to steal and eat their eggs.
The creature's name means "bird mimic" and was chosen by
Othniel C. Marsh
in 1890. Marsh chose the name based only on a foot and partial hand of the
first species found, Ornithomimus velox. In
1933,
a more complete skeleton of a second species, Ornithomimus edmontonicus
was found in
Canada.
"Ornithomimus" means "bird mimic". The name was chosen by Othniel C. Marsh in 1890.
Ornithomimus was a member of the Saurischia ("lizard-hipped") order of dinosaurs. What this means, is that although Ornithomimus was not closely related to lizards, it did have similarly shaped pelvic bones.
Ornithomimus was a Theropod - a member of a group of related bipedal dinosaurs that included the ancestors of birds (although Ornithomimus was not itself an ancestor of birds).
Ornithomimus lived between about 76 million years ago and 65 million years ago, during the late Cretaceous period.
Ornithomimus was a omnivore (ate both meat and plants).
Ornithomimus was about 12 feet (3.7 meters) long.
Ornithomimus weighed about 300 pounds (136 kilograms).
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