Late Cretaceous

  • Orthogoniosaurus matleyi

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

  • Orthogoniosaurus rawesi

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

  • Orthomerus dolloi

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

  • Oryctodromeus cubicularis

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

  • “Osteoporosia gigantea”

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

  • Otogosaurus sarulai

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

  • Overoraptor chimentoi

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

  • Overosaurus paradasorum

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

  • Oviraptor philoceratops 

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

  • Oxalaia quilombensis

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