A bone found in the southwestern US decades discovered bone bones 20 years ago, according to the paleontologists of the New American Museum of Natural History and Science.
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The new Ceratopsid, the best-known genus Triceratop, weighed 1,500 kilograms and scientists ran 73 million years ago.
The bones of the new dinosaur were found in rocks in Tucson, one of the great lakes of the southeast of Arizona, during the Cretaceous era.
Museum officials said at a press conference that the new dinosaur was recently named Arizona.
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Its official name is Crittendenceratops krzyzanowskii. When Crittendenceratops discovered bones, Fort Crittenden Formation, the geological formation of southeastern Arizona. Stan Krzyzanowski was a late New Mexico Natural History and Science Museum researcher when he found bones.