Ceratopsian dinosaurs,computer artwork. Seen here from right are a Triceratops,a Monoclonius,a Pentaceratops,a Styracosaurus and a Pachyrhinosaurus. Ceratopsia were herbivorous beaked dinosaurs that lived in North America and Asia during the Cretaceous period,135-63 million years ago. They had at least one horn and a neck frill | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Darkin, Christian |
Taille de l’image : | 5700 px × 3084 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |