Safari Ltd Carnegie Scale Model Elasmosaurus Elasmosaurus is a genus of plesiosaur with an extremely long neck that lived in the Late Cretaceous period, 80.5 million years ago. These award winning dinosaur replicas are authenticated by the paleontologists of the Carnegie museum of natural history. Each Carnegie dinosaur can have up to 25 steps of hand painting to ensure the highest quality in the world marketplace. Detailed educational information in 5 languages are provided with each replica. All our products are phthalate-free and thoroughly safety tested to safeguard your child's health.