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Photos: New dinosaur discovered

A technician cleans up a bone fragment at the Field Museum. The new predator was over 30 ft. long and weighed more than four tons.

A technician cleans up a bone fragment at the Field Museum. The new predator was over 30 ft. long and weighed more than four tons.  (Antonio Perez/Chicago Tribune)

Chicago Tribune
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A new top predator dinosaur has been discovered in Utah by an expedition led by Chicago’s Field Museum. Named Siats meekerorum, the new predator was over 30 feet long and weighed more than four tons, 100 million years ago. Scientists believe it was a rival to T. rex in size and power.

New dinosaur discovered

Associate Curator Paleontology Dept. of Geology, Peter Makovicky holds a fibula bone as he displays bones and fragments belonging to a new top predator dinosaur named Siats Meekerorum, at the Field Museum.  (Antonio Perez/Chicago Tribune)

New dinosaur discovered

Bones display of the tail vertebrae belonging to a new top predator dinosaur named Siats Meekerorum, at the Field Museum.  (Antonio Perez/Chicago Tribune)

New dinosaur discovered

Bones display of the tail vertebrae belonging to a new top predator dinosaur named Siats Meekerorum, at the Field Museum.  (Antonio Perez/Chicago Tribune)

New dinosaur discovered

Associate Curator Paleontology Dept. of Geology, Peter Makovicky displays bones and fragments belonging to a new top predator dinosaur named Siats Meekerorum, at the Field Museum.  (Antonio Perez/Chicago Tribune)

New dinosaur discovered

Bones display of the lower leg including the fibula, belonging to a new top predator dinosaur named Siats Meekerorum, at the Field Museum.  (Antonio Perez/Chicago Tribune)

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