Stage: Maastrichtian

• Oksoko avarsan

  Dinosaur Oksoko avarsan: scientific and paleontological classification, description, dimensions, length, weight, temporal range, species, fossils, references

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• Olorotitan arharensis 

  Dinosaur Olorotitan arharensis : scientific and paleontological classification, description, dimensions, length, weight, temporal range, species, fossils, references

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• Ondogurvel alifanovi

  Dinosaur Ondogurvel alifanovi: scientific and paleontological classification, description, dimensions, length, weight, temporal range, species, fossils, references

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• Opisthocoelicaudia skarzynskii

  Dinosaur Opisthocoelicaudia skarzynskii: scientific and paleontological classification, description, dimensions, length, weight, temporal range, species, fossils, references

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• “Orcomimus”

  Dinosaur "Orcomimus": scientific and paleontological classification, description, dimensions, length, weight, temporal range, species, fossils, references

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• Orkoraptor burkei 

  Dinosaur Orkoraptor burkei : scientific and paleontological classification, description, dimensions, length, weight, temporal range, species, fossils, references

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• Ornithomimoides barasimlensis

  Dinosaur Ornithomimoides barasimlensis: scientific and paleontological classification, description, dimensions, length, weight, temporal range, species, fossils, references

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• Ornithomimoides mobilis

  Dinosaur Ornithomimoides mobilis: scientific and paleontological classification, description, dimensions, length, weight, temporal range, species, fossils, references

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• Ornithomimus edmontonicus

  Dinosaur Ornithomimus edmontonicus: scientific and paleontological classification, description, dimensions, length, weight, speed, temporal range, species, fossils, references

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• “Ornithomimus” minutus

  Dinosaur "Ornithomimus" minutus: scientific and paleontological classification, description, dimensions, length, weight, temporal range, species, fossils, references

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