Pachyrostra

  • Achelousaurus horneri

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

  • Pachyrhinosaurus canadensis

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

  • Pachyrhinosaurus lakustai

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

  • Pachyrhinosaurus perotorum

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