Search Results for: Montana, North Dakota, South Dakota, Wyoming

  • Stygimoloch spinifer

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

  • Averostra

    Tyrannosaurus rex

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