Answer:
Camarasaurus and Diplodocus are similar in that they were both large-sized, herbivorous dinosaurs that lived during the Late Jurassic period. They were both members of the family Diplodocidae, and had long necks and tails, as well as relatively small heads compared to their body size. In addition, both Camarasaurus and Diplodocus were quadrupedal, meaning they walked on four legs.