Dryosauridae A clade in the dinosaur family tree. The entries below are classified within it. Dryosaurus 155–145 Mya · Asia Dysalotosaurus 152–151 Mya · Tanzania Eousdryosaurus 152 Mya · Portugal Valdosaurus 140–121 Mya · United Kingdom Elrhazosaurus 115 Mya · Niger