A The smallest dinosaurs were probably from the late Triassic and early Jurassic That's where we find the smallest ornithischian dinosaurs so far Dinosaurs got biggest in the late Jurassic and Cretaceous Q Did the ankylosaurus have the hardest shell?Meaning "thickheaded lizard", from Greek pachys/ παχύς"thick", kephale/ κεφαλή "head" and sauros/ σαῦρος "lizard") is a genus of pachycephalosaurid dinosaursThe type species, P wyomingensis, is the only known speciesIt lived during the Late Cretaceous Period (Maastrichtian stage) of what is now Bruton's physical body was destroyed while the security specialist, Hard Head, managed to activate the lockdown protocols keeping the Destructons from using the ship Undeterred, Lord Imperious Delirious used his technical expertise to murder Hard Head, then incorporate Bruton's programming into the shell of the Predacon's body
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Dinosaur with hard shell on head