I have been thinking about the Dinobots and why their existence was not explained in any way. I think there is a reason their origins were not touched upon in AOE. The Dinobots are first revealed as prisoners on Lockdown's ship. Why would Lockdown want to capture things as huge and powerful and feral as the Dinobots and keep them as prisoners on his ship? They don't seem like the type of robots you would go and capture just for the heck of it. There had to be a reason he had them as prisoners. Now Lockdown also captures Prime because the "Creators" want him back. If the Creators want Prime, perhaps they also want the Dinobots back, too, and that's why Lockdown captured them in the first place. The Creators also used the Seeds to create the necessary material to make the Transformers. One of the planets they cyberformed was obviously Earth during the Cretaceous, and obviously there were dinosaurs present there, and they became extinct as a result. It's possible they also detonated more Seeds on other worlds, too, and caused extinctions on other planets. Now if the Creators made the Transformers, and they also encountered and destroyed the dinosaurs, then I think perhaps the Creators designed the early Transformers after living things they had discovered and killed off across the universe. Perhaps the Primes and consequently Optimus are based on one species of extinct extraterrestrial humanoid, while the Dinobots are based on the dinosaurs and pterosaurs of Earth. Why? I don't know, but they were definitely inspired. Maybe they were built as living monuments to the species they wiped out. Maybe they were made in mockery of the dinosaurs and other species the Creators considered inferior. There are other possibilities as to why they based them on dinosaurs, too. Even if my theory is not 100 % correct, I believe the reason their origins were not touched upon is likely because the Dinobots are very closely tied with the Creators and the origins of the Transformers. I think the movie makers did not want to reveal too much about the Creators yet in AOE, and revealing the origins of the Dinobots would reveal too much about the Creators. Prime said that the legends were true, so there obviously is some sort of history with the Dinobots. What are your thoughts? Whatever the case, I hope we get to know the Dinobots better in TF 5.