Dinosauria › Saurischia › Sauropodomorpha Plateosauridae Triassic-Jurassic prosauropods, ancestors to giant sauropods. Ruehleia bedheimensis 252–201 Mya · Germany Platysaurus 227.3–199.5 Mya · Unknown locality Sellosaurus 227.3–205.7 Mya · Unknown locality Unaysaurus 225.42 Mya · Brazil Issi saaneq 225 Mya · Brazil Plateosauravus cullingworthi 221–202 Mya · Africa Plateosaurus trossingensis 214–204 Mya · Europe Xixiposaurus 201–183 Mya · China