parasaurolophus calling the herd. color

parasaurolophus dinosaur beak hadrosaur crested reptile walking mesozoic fossil prehistoric paleoart palaeontology reconstruction animal creature duckbill herbivorous hadrosaurid extinct colour cretaceous vibrant kids herd line evolution drawing education picture ornithopod trumpeting illustration isolated book feathered accurate scientific science nonavian bipedal horned slow peaceful huge prey crest lambeosarid child