|
|
Centrosaurus
nasicornis
skull
Late Cretaceous
Alberta,
Canada
|
|
|
Brachyceratops
montanensis
Late Cretaceous
Montana
|
|
|
|
|
| |
|
|
Triceratops
horridus
Late Cretaceous
Wyoming
|
|
|
Tirceratops
horridus
Late Cretaceous
Wyoming
|
|
|
|
|
| |
|
|
Triceratops
horridus
skull
Late Cretaceous
Wyoming
|
|
|
Triceratops
hatcheri
skull
Late Cretaceous
Wyoming
|
|
|
|
|
| |
 |
Protoceratops
andrewsii
Late Cretaceous
Mongolia
|
|
|
Stegosaurus
stenops
Late Jurassic
Wyoming
|
| |
|
|
| |
 |
Stegosaurus
stenops
Late Jurassic
Colorado
|
|
 |
Stegosaurus
stenops
Late Jurassic
Wyoming
|
| |
|
|
| |
 |
Pachycephalosaurus
wyomingensis
skull
Late Cretaceous
Wyoming
|
|
 |
Thescelosaurus
neglectus
Late Cretaceous
Wyoming
|
| |
|
|
|
|
|
| |
|
|
|
|
 |
Corythosaurus
casuarius
juvenile skull
Late Cretaceous
Montana
|
|
 |
Heterodontosaurus
Early Jurassic
South Africa
|
| |
|
|
|
|
|
| |
|
|
|
|
 |
Edmontosaurus
annectens
Late Cretaceous
Montana
|
|
 |
Edmontosaurus
annectens
skull
Late Cretaceous
Montana
|
| |
|
|
|
|
| |
|
|
|
|
