S1: Iguanodon was one of the first dinosaurs to be scientifically described. S6: This quadrupedal dinosaur lived about 70 million years ago and its fossils are found in many parts of England, Europe, Asia and North Africa. P: These teeth formed a dental battery in which replacing teeth were constantly growing. Q: The fore limbs were slightly larger than other members of its group known as Ornithischia. R: It had numerous teeth in the sides of the jaws, arranged in rows. S: It was about 40 feet in length. The proper sequence should be

S1: Iguanodon was one of the first dinosaurs to be scientifically described. S6: This quadrupedal dinosaur lived about 70 million years ago and its fossils are found in many parts of England, Europe, Asia and North Africa. P: These teeth formed a dental battery in which replacing teeth were constantly growing. Q: The fore limbs were slightly larger than other members of its group known as Ornithischia. R: It had numerous teeth in the sides of the jaws, arranged in rows. S: It was about 40 feet in length. The proper sequence should be