If Optimus had a Dino form (like in rescue bots) in Bayverse. Used grimlock body build for reference | Optimus prime art, Dinobots, Transformers artwork
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Amazon.com: Transformers Primal Team-Up 3-Pack with Optimus Prime, Bumblebee, and Grimlock Converting Dinosaur Figures, 4.5-Inch Toys, Ages 3 and Up (Amazon Exclusive) : Toys & Games
Transformers Age of Extinction Dino Sparkers Optimus Prime and Grimlock Figures
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Transformers Rescue Bots Optimus Prime T Rex Dinosaur Lights & Sound Playskool | eBay
IMDb no Twitter: "Optimus Prime rides a dinosaur robot in latest trailer for 'Transformers: Age of Extinction': http://t.co/aQKPz5Hb4M http://t.co/tWmMgpdk1K" / Twitter
Optimus Prime's Primal Mode, T-Rex! | Official Clip | Rescue Bots Season 3 | Transformers Kids - YouTube